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Heart Wellness · Cardiovascular Tests

Chest X-Ray to Assess the Heart and Lungs: What You Need to Know

Indonesian edition reviewed bydr. BRM Ario S. Kuncoro, Sp.JP(K), Cardiology and Vascular Medicine
Review date
Reading timeAbout 27 min

Start with the explanation, then move on to practical steps. Use the contents list to choose the parts you need.

Article contents

Quick answer

A chest X-ray is a noninvasive imaging test that uses X-rays to assess the lungs, heart silhouette, airways, large blood vessels, bones, and structures of the chest cavity. This test helps show certain changes, but the results still need to be interpreted together with symptoms, health history, physical examination, and further tests if needed.

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When your doctor recommends a chest X-ray, it is natural to want to know what is being examined, how the process works, and what the results mean. This test is often considered when a person has shortness of breath, a persistent cough, or symptoms in the chest area, or needs a medical check-up or an evaluation before or after certain procedures.

A chest X-ray, known in Indonesia as rontgen thorax, rontgen dada, foto thorax, or foto toraks, uses X-rays to produce images of the inside of the chest. Through these images, doctors can assess the lungs, airways, heart silhouette, some of the large blood vessels, bones, pleura, diaphragm, and other structures in the chest cavity.

However, a single X-ray cannot provide every answer. The results need to be understood together with your symptoms, health history, physical examination, and other relevant tests. Rhythm disorders, narrowing of the coronary arteries, or a number of small lung abnormalities, for example, cannot be assessed directly or completely with a chest X-ray.

What Is a Chest X-Ray?

A chest X-ray is a noninvasive imaging test that uses X-rays to produce two-dimensional images of the chest cavity. It is called noninvasive because the test does not require an incision or any instrument to be inserted into the body.

Doctors may use a chest X-ray as an initial test, a monitoring tool, part of certain medical check-ups, or a test before and after medical procedures. Although practical, its results do not stand alone as a final diagnosis.

Because X-ray images are two-dimensional, some structures can overlap one another. For this reason, a radiologist assesses the images systematically, taking into account the patient’s position, how deeply the patient breathed in, symmetry, organ borders, patterns of abnormality, and the purpose of the test.

Is a Thorax X-Ray the Same as a Chest X-Ray?

Yes. In Indonesia, the terms rontgen thorax, rontgen dada, foto thorax, and foto toraks all refer to the same test: a chest X-ray. “Thorax” is the medical term for the chest.

People also often call it a lung X-ray. However, the area captured in the image is not limited to the lungs. The heart silhouette, certain large blood vessels, bones, diaphragm, pleura, and mediastinum can also be assessed in general terms.

How Are X-Ray Images Produced?

During the test, X-rays pass through the chest to a detector. Each type of tissue absorbs a different amount of X-rays, producing different shades in the image:

  • Air in the lungs generally appears darker.
  • Soft tissue and fluid appear in various shades of gray.
  • Bones generally appear brighter.

These differences in shade are not a diagnosis. The radiologist also assesses shape, location, distribution, how sharp the borders are, the quality of inspiration, body position, and the relationships between structures. In addition, older images often help determine whether a finding is new, stable, improving, or changing.

Organs and Structures That Can Be Assessed

A chest X-ray can help assess the lungs, airways, heart silhouette, pleura, diaphragm, bones, mediastinum, and certain medical devices. The details that can be seen are affected by the purpose of the test, the patient’s position, the projection used, and the image quality.

Lungs and Airways

Doctors can assess the general appearance of:

  • The right and left lung fields.
  • The trachea and large airways.
  • The pattern of blood vessels in the lungs.
  • The pleural space around the lungs.
  • Areas of the lung that appear denser or darker.
  • Changes in lung volume.

An area that appears whiter does not automatically mean infection. Fluid, collapsed lung tissue, a mass, bleeding, or overlapping structures can also produce a similar appearance. For this reason, findings need to be read together with other patterns and the patient’s clinical condition.

In addition, X-rays have limited resolution. Very small abnormalities, those hidden behind bones or the heart, or those still at an early stage may not be visible. A CT scan may be needed if the doctor requires a more detailed picture.

Heart Silhouette and Large Vessels

A chest X-ray can help show:

  • The general position, shape, and size of the heart silhouette.
  • Part of the large blood vessels.
  • The pattern of blood vessels in the lungs.
  • Indirect signs of congestion or fluid buildup.
  • The position of certain heart devices.

What is visible on an X-ray is the outer contour of the heart, not the detailed internal structures. This test does not directly show valve movement, pumping strength, electrical activity, or narrowing of the coronary arteries.

Bones and Chest Cavity Structures

A chest X-ray image also includes:

  • The ribs.
  • The collarbones.
  • Part of the spine.
  • The diaphragm.
  • The chest wall.
  • The pleura.
  • The mediastinum, the space in the middle of the chest that contains the heart, large blood vessels, trachea, esophagus, and other structures.

However, not every bone or soft tissue disorder can be confirmed with a chest X-ray. For certain injuries or unclear findings, the doctor may recommend additional projections, a CT scan, MRI, or other tests.

Medical Devices in the Chest

A chest X-ray is often used to help assess the position of:

  • Pacemakers.
  • Electrode wires or leads of heart devices.
  • Certain catheters and tubes.
  • Sternal wires or other postoperative devices.

Although it can show their position, an X-ray is generally not enough to confirm that a device is working properly. Evaluating device function requires specific tests depending on the type of device.

When Is a Chest X-Ray Needed?

Your doctor may recommend a chest X-ray based on your symptoms, physical examination findings, health history, monitoring needs, or preparation for a procedure. Not every chest complaint requires an X-ray, and not every healthy person needs to have this test routinely.

Shortness of Breath, Cough, or Chest Symptoms

A chest X-ray may be considered when a person has:

  • Shortness of breath.
  • A persistent cough.
  • Fever with a suspected lung problem.
  • Certain types of chest pain.
  • Coughing up blood.
  • Reduced ability to do physical activities.
  • Symptoms that are getting worse or have not been explained by initial tests.

This test can help look for changes in the lungs, pleura, heart silhouette, or other chest structures. Even so, a result that looks normal does not always explain the cause of the symptoms.

Chest Pain or Injury

After an impact or injury, doctors may use an X-ray to help evaluate:

  • Changes in certain bones.
  • Air in the pleural space.
  • Fluid in the chest cavity.
  • Changes in the position of structures.
  • Complications visible on the image.

In severe trauma, or when an injury is suspected that cannot be adequately assessed with an X-ray, a CT scan or other tests may be needed.

Health Check-Ups or MCUs

A chest X-ray may be part of a medical check-up for occupational health needs, institutional requirements, evaluation of certain exposures, or targeted screening in groups with risk factors.

However, this test does not need to be done routinely in every healthy person without an indication. The ACR considers routine chest imaging generally not appropriate for hospital admission or before noncardiothoracic surgery when there is no clinical concern for a heart or lung disorder.

In tuberculosis screening, the WHO includes chest X-rays as one of the screening tools for appropriate groups. Even so, an X-ray image cannot stand alone as a diagnosis of TB. Symptom evaluation and diagnostic tests, including molecular or sputum tests as indicated, are still needed.

Before or After a Procedure

A chest X-ray can also be used to:

  • Help prepare for certain procedures when there is an indication.
  • Evaluate changes after surgery.
  • Assess the position of devices or tubes.
  • Monitor how a condition is progressing.
  • Compare new images with previous ones.

In other words, the decision to do an X-ray always depends on the clinical question that needs to be answered.

Preparing for a Chest X-Ray

A standard chest X-ray generally does not require complicated preparation or fasting. Even so, following the health facility’s instructions helps produce good images and reduces the chance of having to repeat the test.

Do You Need to Fast?

For a chest X-ray alone, you generally do not need to fast. You can eat, drink, and take your regular medications unless your doctor or the testing facility gives different instructions.

However, if the X-ray is part of an MCU that also includes blood tests or other examinations, you may need to fast for that set of tests. For this reason, check the instructions you were given again before you arrive.

Clothing and Metal Objects

Before the images are taken, staff may ask you to:

  • Change into an examination gown.
  • Remove necklaces or jewelry around the neck and chest.
  • Remove glasses or other metal objects if they interfere with the image.
  • Empty your upper pockets of phones, cards, or other items.

Metal objects can block the view of anatomy and reduce image quality. Staff will guide you while protecting your privacy and comfort.

Pregnancy or Possible Pregnancy

Tell your doctor and the radiology staff if you are pregnant or might be pregnant. This information helps the medical team weigh the benefits, urgency, examination technique, and available alternatives.

In a chest X-ray, the fetus is usually not directly in the main X-ray beam. Even so, exposure must still be optimized. A test that is truly needed should not be canceled or postponed without discussing its benefits and risks with your doctor.

Documents to Bring

Prepare:

  • A referral letter or test request, if required.
  • Identification and administrative documents.
  • Previous X-ray reports and images.
  • Information about surgeries or medical devices.
  • Information about relevant health conditions.
  • Information about a possible pregnancy.

Bringing older images is very helpful. In fact, changes over time are often more meaningful than a single test assessed on its own.

The Chest X-Ray Procedure

A chest X-ray procedure is generally short: the staff position your body, ask you to breathe in and hold your breath, and then take one or more images. Your visit may take longer because of registration, preparation, image quality checks, reading by the radiologist, and preparation of the report.

Before the Images Are Taken

The staff will:

  • Confirm the patient’s identity.
  • Check the test request.
  • Briefly explain the process.
  • Ask you to remove objects that interfere with the image.
  • Ask about pregnancy or special conditions.
  • Adjust the position based on the patient’s abilities.

The radiographer is responsible for positioning you and taking the images. Afterward, the radiologist reads the images and prepares a report for the doctor who requested the test.

While the Images Are Taken

Patients usually stand facing the detector. The radiographer will adjust the position of your shoulders, chest, and arms. You will then be asked to take a deep breath, hold it for a few seconds, and stay still while the image is taken.

Holding your breath helps the lungs expand and reduces movement that could blur the image. You cannot feel the X-rays themselves. Even so, certain positions may feel uncomfortable if you have an injury, shortness of breath, or limited mobility. Let the staff know about these conditions so they can adjust your position.

Patients who cannot stand can be examined while sitting or lying down.

PA, AP, and Lateral Positions

PA or Posteroanterior

In a PA projection, the X-ray beam travels from the back to the front of the chest. The patient usually stands with the chest close to the detector. This position reduces false enlargement of the heart silhouette, making it more suitable for assessing heart size.

AP or Anteroposterior

In an AP projection, the beam travels from the front to the back. This position is often used for patients who have to sit, lie down, or undergo a portable examination.

Because the heart is farther from the detector, its silhouette can appear larger. In addition, lying down, body rotation, and a breath that is not deep enough can affect the appearance. For this reason, an impression of an “enlarged heart” on an AP image needs to be interpreted carefully.

Lateral

In a lateral projection, the image is taken from the side. This additional angle helps doctors see structures that overlap on the frontal image. However, not every patient needs a lateral image.

How Long Do the Test and Results Take?

X-ray exposure lasts only a very short time. However, the time until the report is ready can be affected by:

  • Registration and preparation.
  • The patient’s condition and mobility.
  • The number of images needed.
  • The need to retake images.
  • The complexity of the findings.
  • The radiology facility’s workflow.
  • Comparison with previous tests.

So, the time it takes to capture the images and the time it takes to complete the report are two different things.

Chest X-Ray Safety

A chest X-ray uses a small amount of ionizing radiation and is performed when the benefit of the medical information is judged to outweigh the potential risks. Radiology staff optimize the technique so the dose is kept low without reducing the image quality needed.

Radiation Exposure

The principle of radiology safety is not simply to use the lowest possible dose. The dose must be low enough while still producing images that can answer the medical question.

In Indonesia, the Nuclear Energy Regulatory Agency (BAPETEN) sets the Indonesian Diagnostic Reference Levels (Tingkat Panduan Diagnostik Indonesia, TPDI) through BAPETEN Chairman’s Decree No. 1812 of 2025. Health facilities use this reference to evaluate and optimize doses, not as an absolute limit that determines whether a single test is safe for an individual patient. BAPETEN also held renewed outreach on the implementation and evaluation of TPDI in April 2026.

Repeat X-Rays

An X-ray can be repeated when there is a medical reason, for example to:

  • See how a condition is progressing.
  • Confirm the position of a device.
  • Assess the response to treatment.
  • Compare changes after a procedure.

Your doctor will consider the benefits, your imaging history, the condition being monitored, and available alternatives. For this reason, bring your old results so the test does not need to be repeated just because previous images are not available.

X-Rays During Pregnancy

Pregnancy does not always mean an X-ray must be canceled. Your doctor will consider the reason for the test, the mother’s condition, urgency, the area of the body being examined, and radiation-free alternatives if available.

Most importantly, let the team know about a possible pregnancy before the test. In a chest examination, the fetus is generally not directly exposed to the main beam, but the technique must still be optimized.

X-Rays in Children

Children have different body sizes and sensitivity to radiation compared with adults. For this reason, the examination technique needs to be adjusted to the child’s size and the clinical purpose.

The main principles include:

  • Perform the test when there is a medical benefit.
  • Use a technique adjusted to body size.
  • Limit the area examined.
  • Avoid unnecessary repeat images.
  • Consider ultrasound or MRI if they can meet the need without radiation.

This approach is in line with the pediatric imaging safety principles of the ACR/RSNA and Image Gently.

Findings on X-Ray Results

Chest X-ray results can show certain patterns or changes, but one pattern does not always have a single cause. For this reason, radiology findings need to be interpreted based on symptoms, health history, and other tests.

Changes in the Lungs

An X-ray can show:

  • Areas of the lung that are denser.
  • Changes in tissue patterns.
  • Reduced volume in part of the lung.
  • Scar tissue or chronic changes.
  • Nodules or masses that are large enough to be seen.
  • Changes that need to be compared with older images.

Small abnormalities, or those hidden by bones, the heart, or the diaphragm, can be missed. Even small lung nodules or lung cancers may not yet be visible. For this reason, a normal result does not completely rule out all lung diseases.

Fluid or Air in the Chest

Pleural effusion is a buildup of fluid in the space between the lungs and the chest wall. On an X-ray, fluid can make the costophrenic angle look blunted or create a shadow in the lower part of the chest.

Pneumothorax is air in the pleural space that can cause the lung to collapse partially or completely. How urgent it is depends on the extent of the change and the patient’s condition.

An X-ray can show the presence of fluid or air, but it does not necessarily explain the cause.

Changes in the Heart Silhouette

The heart silhouette may appear:

  • Within the expected size limits.
  • Enlarged.
  • Difficult to assess because of position or image quality.
  • Partly obscured by changes in the lungs or pleura.

A size that looks large does not always mean the heart chambers are actually enlarged. An AP projection, lying down, insufficient inspiration, rotation, the shape of the chest cavity, and fluid around the heart can affect the appearance.

Bones and Other Structures

An X-ray can also show:

  • Changes in the ribs or collarbones.
  • A different position of the diaphragm.
  • Widening or changes in the contour of the mediastinum.
  • The position of devices.
  • Sternal wires or postoperative devices.

Unclear findings may require a CT scan, ultrasound, MRI, or other specific tests.

An X-ray can help show Cannot yet confirm
An enlarged heart silhouette The cause and heart function
Fluid in the pleural cavity The cause of the fluid buildup
Areas of the lung that are denser The exact type of disease
Nodules large enough to be seen Whether they are benign or malignant
Certain bone changes Every type of injury
Device position Device function

Chest X-Rays and the Heart

A chest X-ray can be an early part of a heart evaluation, especially to look at the heart silhouette and changes in the lungs that may be related to heart function. However, this test does not replace an ECG, echocardiography, cardiac CT scan, or other more specific tests.

Heart-Related Findings

Doctors may find:

  • A heart silhouette that appears enlarged.
  • Increased or redistributed blood vessels in the lungs.
  • Lung congestion.
  • Pulmonary edema, or fluid buildup in the lung tissue.
  • Pleural effusion.
  • Changes in the large blood vessels.
  • The position of a pacemaker or other device.

When heart failure is suspected, a chest X-ray can help show an enlarged heart silhouette, congestion, or other causes of shortness of breath. However, additional tests are usually still needed because an X-ray does not provide all the details required to establish a diagnosis.

What Cannot Be Adequately Assessed

A chest X-ray does not fully assess:

  • The heart’s rhythm and electrical activity.
  • Pumping function or ejection fraction.
  • Valve movement and function.
  • Blood flow inside the heart chambers.
  • Narrowing or plaque in the coronary arteries.
  • The exact cause of every type of chest pain.
  • Detailed abnormalities of the heart muscle tissue.

So, an X-ray result that looks normal does not automatically rule out a heart disorder. Conversely, a heart silhouette that looks large is also not enough to confirm heart failure.

When Are Other Tests Needed?

Your doctor may consider:

  • An ECG to record the heart’s electrical activity, rhythm, and conduction.
  • Echocardiography to look at the heart chambers, valves, wall motion, and pumping function.
  • A cardiac CT scan to assess certain anatomical details, including the coronary arteries as indicated.
  • Cardiac MRI to evaluate the structure, function, and tissue of the heart in certain conditions.
  • Blood tests, including cardiac biomarkers when indicated.
  • Rhythm monitoring if symptoms come and go.

Each test answers a different question. That is why more tests do not always mean better care; what matters most is choosing the test that fits your condition and the clinical purpose. Learn more in our guide to the types of heart tests.

Understanding Chest X-Ray Results

An X-ray report is the radiologist’s explanation of the technique, findings, conclusion, and follow-up recommendations if needed. Your treating doctor then relates that report to your symptoms and condition.

Who Reads the Results?

Health professionals have different roles:

  • The radiographer positions the patient and takes the images.
  • The radiologist reads the images and prepares the report.
  • The referring or treating doctor interprets the clinical meaning, taking into account symptoms, physical examination, health history, and other tests.

The report usually includes the examination technique, findings, comparison with older images, and a conclusion or impression. The conclusion summarizes the most important findings and may include recommendations for further steps.

What Does a Normal Result Mean?

A result within normal limits generally means the radiologist did not find any meaningful changes visible on the images in the context of that test.

However, “normal” does not always mean:

  • All heart and lung diseases have been ruled out.
  • There are no small or early-stage abnormalities.
  • All causes of the symptoms have been found.
  • Ongoing symptoms can be ignored.

In other words, a normal result still needs to be read within the limits of what an X-ray can show.

What Does an Abnormal Result Mean?

An abnormal result means there is an appearance that differs from what is expected. The finding may be:

  • A harmless anatomical variation.
  • An old change.
  • Traces of a previous infection or procedure.
  • A new finding.
  • A change whose cause cannot yet be determined.
  • A finding that requires comparison or further tests.

The word “abnormal” does not automatically mean a serious disease. Its meaning depends on the type, location, size, change over time, and the patient’s condition.

Why Compare With Previous Results?

Comparison helps the doctor find out whether a finding:

  • Is new.
  • Was already there and is stable.
  • Has grown.
  • Has decreased.
  • Has changed shape.

If possible, bring the original images or digital files, not just a photo of the report. The radiologist may need the complete images to make a comparison.

Terms in an X-Ray Report

Terms in an X-ray report are descriptive and do not always refer to one specific disease. For this reason, a term that sounds worrying does not necessarily mean a serious condition, while a term that seems normal does not necessarily explain every cause of your symptoms.

Cor and Pulmo

Cor means heart, while pulmo means lungs. The sentence “cor and pulmo within normal limits” means no meaningful changes were seen in the aspects assessed. It does not assess pumping function, rhythm, valves, or every small abnormality in the lungs.

Cardiothoracic Ratio or CTR

CTR is the ratio of the width of the heart silhouette to the inner width of the chest cavity on a frontal image.

The measurement is most reliable on a PA projection taken while standing with adequate inspiration. An AP projection can make the heart look larger. Chest shape, rotation, depth of breath, body position, and measurement method also affect the result.

Studies comparing CTR with cardiac MRI show that a single numerical threshold is not accurate enough to determine enlargement of the heart chambers. For this reason, CTR should not be used as the sole basis for a diagnosis.

Cardiomegaly

Cardiomegaly means the heart silhouette appears enlarged on an X-ray. This term does not yet explain:

  • Which heart chamber is enlarged.
  • Whether pumping function is impaired.
  • The cause of the enlargement.
  • How severe the condition is.

An AP position can produce false enlargement. In addition, echocardiography is often needed to assess chamber size, valves, and heart function more accurately. Read also our article on an enlarged heart.

Bronchovascular Markings

Bronchovascular markings are the appearance of the bronchi and blood vessels in the lungs. Terms such as “increased,” “coarse,” or “prominent” need to be assessed together with age, imaging technique, exposure history, symptoms, and other findings. These terms are not a diagnosis on their own.

Infiltrates and Consolidation

Both describe areas of the lung that appear denser.

  • Consolidation usually describes air spaces in the lungs that are filled with fluid, cells, or other material.
  • Infiltrate is a more general and less specific term.

A similar appearance can be related to infection, fluid, bleeding, collapsed tissue, or other conditions. For this reason, a conclusion should not be drawn from a single term alone.

Fibrosis

Fibrosis describes scar tissue or chronic changes in the lungs. This finding may be left over from an old process, may be related to chronic lung disease, or may require a CT scan for a more detailed assessment. Fibrosis in a report does not automatically mean the disease is currently active.

Cavity

A cavity is a hollow area inside the lung tissue. Its causes vary, including infection, inflammation, or other conditions. Its shape, wall thickness, location, number, symptoms, and the results of additional tests help determine what it means.

Hilum (Hilus)

The hilum is the area where the bronchi, blood vessels, nerves, and other structures enter or leave the lung. Terms such as “prominent hilum” or “thickened hilum” can be related to blood vessels that appear large, lymph nodes, examination technique, overlapping structures, or other conditions.

Pleural Effusion

Pleural effusion means there is fluid in the space between the lungs and the chest wall. On an X-ray, fluid can make the lower angle of the lung look blunted or form a certain shadow. The cause may be related to lung or heart conditions, infection, inflammation, malignancy, or other factors.

Costophrenic Angle

The costophrenic angle, also called the costophrenic sinus, is the angle between the diaphragm and the chest wall.

  • “Sharp” generally means no fluid buildup is seen in that area.
  • “Blunted” may point to pleural fluid or other changes.

A very small effusion may not be visible on a frontal image.

Mediastinum

The mediastinum is the space in the middle of the chest cavity that contains the heart, aorta, large blood vessels, trachea, esophagus, lymph nodes, and other structures.

A mediastinum that appears wide can be affected by an AP projection, rotation, quality of inspiration, or anatomical abnormalities. If needed, the doctor may recommend a CT scan.

Nodule or Mass

A nodule or mass is a localized shadow that differs from the surrounding tissue. This finding does not automatically mean cancer. The shadow can come from a benign abnormality, an old change, overlapping normal structures, infection, or other conditions.

Your doctor may need to compare older images or perform a CT scan. On the other hand, a normal X-ray also cannot rule out every small nodule.

Normal Results but Ongoing Symptoms

Symptoms that persist even though the X-ray looks normal do not mean those symptoms are not real. An X-ray only assesses certain types of changes and cannot show every heart, lung, digestive, muscle, or nerve disorder.

Conditions That Are Not Always Visible

Some examples of conditions that cannot always be assessed with a chest X-ray include:

  • Heart rhythm disorders.
  • Narrowing of the coronary arteries.
  • Valve disorders.
  • Certain stages of impaired pumping function.
  • Pulmonary embolism.
  • Asthma or certain airway disorders.
  • Small lung abnormalities.
  • Pain from the muscles or chest wall.
  • Digestive disorders.
  • Symptoms related to stress or anxiety.

This list is not a tool for diagnosing the cause of your symptoms yourself. An examination by a doctor is still needed to narrow down the possibilities based on your pattern of symptoms.

Why Do Symptoms Need to Be Evaluated?

Your doctor will look at:

  • When the symptoms started.
  • Whether they appear during activity or at rest.
  • The location and character of the pain.
  • How long the symptoms last.
  • Triggering and relieving factors.
  • Accompanying symptoms.
  • Medical history.
  • Blood pressure and cardiovascular risk factors.
  • Physical examination.
  • Results of an ECG, laboratory tests, or other examinations.

In other words, the X-ray result is only one part of the overall assessment.

Further Tests

Depending on your condition, your doctor may consider:

  • ECG.
  • Echocardiography.
  • Blood tests.
  • CT scan.
  • Lung function tests.
  • Rhythm monitoring.
  • Digestive tract examination.
  • Musculoskeletal evaluation.

Not every patient needs all of these tests.

Comparing Heart Tests

A chest X-ray, ECG, echocardiography, and CT scan cannot fully replace one another. Each one is designed to answer a different question.

Test Main Focus Information Obtained Main Limitation
Chest X-Ray Chest structures Lungs, heart silhouette, fluid, bones, devices Does not assess heart function in detail
ECG Electrical activity Rhythm, rate, and conduction Does not produce anatomical images
Echocardiography Heart structure and function Chambers, valves, wall motion, pumping function Does not give a complete picture of the lungs
CT Scan More detailed anatomy Certain structures, the aorta, lungs, or coronary vessels depending on the protocol Uses radiation and is chosen based on indications

Chest X-Ray

Suitable for giving an initial picture of the chest cavity and looking at general changes in the lungs or heart silhouette.

Electrocardiography

An ECG records electrical signals through electrodes attached to the skin. This test is useful for assessing rhythm and conduction, but it does not directly show the lungs or the anatomy of the heart.

Echocardiography

Echocardiography uses sound waves to produce moving images. This test helps assess the valves, heart chambers, wall motion, and pumping strength.

CT Scan

A CT scan produces more detailed cross-sectional images. Its protocol can be directed to assess the lungs, aorta, blood vessels, or coronary arteries. A CT scan is not automatically needed after every X-ray; the decision is made based on the findings and the clinical question.

Steps After Receiving Your Results

After receiving the report, do not stop at the word “normal” or “abnormal.” The most important step is to connect the findings with the reason the test was done.

Do Not Diagnose Yourself

You can read the conclusion section to understand the general picture, but avoid:

  • Making a diagnosis based on a single term.
  • Comparing your results with someone else’s images.
  • Judging the severity of a condition based only on the CTR number.
  • Stopping or starting medications based on the report.
  • Ignoring symptoms because the result is described as normal.

Discuss With Your Referring Doctor

The doctor who requested the X-ray knows the clinical question that needs to be answered. Bring back:

  • The report.
  • The images or digital files.
  • Notes on your symptoms.
  • A list of medications.
  • Results of other tests.

If changes related to the heart are found, your doctor may refer you for a consultation with a cardiologist.

Compare With Previous Results

A comparison can show whether a finding is new or has been there for a long time. If the test was done at a different place, ask for a copy of the images so they can be assessed directly.

Follow Through With Further Tests

A recommendation for additional tests does not always mean a serious condition has been found. The purpose may be to:

  • Confirm whether the finding is real.
  • Look at areas hidden on the X-ray.
  • Assess organ function.
  • Find the cause.
  • Monitor changes.

Keep Your Reports and Images

Keep:

  • The written report.
  • The CD, link, or digital files.
  • The test date.
  • The name of the facility.
  • Notes from follow-up consultations.

Good records help your doctor understand how your condition has developed over time.

Chest X-Rays at Heartology

Heartology has a radiology specialist listed as a Consultant Radiologist. A chest X-ray is also included as one of the diagnostic tests in the Vascular Health & Wellness MCU package, together with an ECG, echocardiography, vascular examination, and a doctor consultation.

For a more targeted heart evaluation, Heartology has a Cardiovascular Diagnostic Center with a process that starts with a consultation, a review of your health history, a physical examination, and the selection of tests based on the patient’s needs. The available cardiac diagnostic modalities include tests such as ECG, echocardiography, and cardiac CT.

A chest X-ray should not be seen as a complete package for diagnosing the heart. Its value lies in its ability to provide initial information that can then be linked with other tests in a personalized and comprehensive way.

When Do You Need Immediate Care?

Do not wait for an outpatient X-ray appointment if symptoms come on suddenly, are severe, or come with emergency warning signs.

Seek medical help immediately if you have:

  • Severe pain or pressure in the center of the chest.
  • Pain spreading to the arm, shoulder, back, neck, jaw, or upper abdomen.
  • Sudden or worsening shortness of breath.
  • Cold sweats.
  • Nausea with chest pain.
  • Severe dizziness or nearly fainting.
  • Loss of consciousness.
  • Lips that look bluish.
  • Coughing up a significant amount of blood.
  • Difficulty breathing after a chest injury.

Not all of these symptoms come from the heart, but their cause needs to be evaluated promptly. Speed of treatment is very important in a heart attack and other acute chest conditions.

Conclusion

A chest X-ray is a practical initial test that helps doctors look at the lungs, heart silhouette, certain large blood vessels, bones, pleura, and other structures inside the chest. The procedure is generally quick and does not require special preparation.

Even so, X-ray images have limits. A normal result does not always rule out every disease, while an abnormal result does not automatically mean a serious condition. Terms such as CTR, cardiomegaly, infiltrate, fibrosis, or pleural effusion only have clinical meaning when they are assessed together with symptoms, health history, examination technique, and the results of other tests.

You do not need to understand the report on your own. Bringing your results to your treating doctor is an important step to get an explanation and determine whether further tests are truly needed.

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The information on this page is for educational purposes and does not replace medical consultation, diagnosis, or treatment. For any health concerns, please consult a doctor directly.

Sources and Transparency.

Reviewer

Translated from the Indonesian edition medically reviewed by dr. BRM Ario S. Kuncoro, Sp.JP(K), Cardiology and Vascular Medicine on July 21, 2026.

Sources as cited in the Indonesian edition.

  1. Radiological Society of North America (RSNA) & American College of Radiology (ACR). (2024). Chest X-ray (Radiography). RadiologyInfo.org.
  2. Radiological Society of North America (RSNA) & American College of Radiology (ACR). (2024). How to Read Your Chest X-ray Report. RadiologyInfo.org.
  3. American College of Radiology. (2022). ACR Appropriateness Criteria®: Routine Chest Imaging. American College of Radiology.
  4. World Health Organization. (2021). WHO Consolidated Guidelines on Tuberculosis: Module 2—Screening: Systematic Screening for Tuberculosis Disease. World Health Organization.
  5. World Health Organization. (2025). WHO Consolidated Guidelines on Tuberculosis: Module 3—Diagnosis. World Health Organization.
  6. Radiological Society of North America (RSNA), American College of Radiology (ACR), & American Society of Radiologic Technologists (ASRT). (2025). Radiation Safety. RadiologyInfo.org.
  7. American Heart Association. (2025). Diagnosing Heart Failure. American Heart Association.
  8. American Heart Association. (2025). Chest X-Ray. American Heart Association.
  9. Simkus P, Gutierrez Gimeno M, Banisauskaite A, Noreikaite J, McCreavy D, Penha D, & Arzanauskaite M. (2021). Limitations of cardiothoracic ratio derived from chest radiographs to predict real heart size: comparison with magnetic resonance imaging. Insights into Imaging, 12, 158.
  10. Badan Pengawas Tenaga Nuklir. (2026, 9 Februari). Surat Keputusan Kepala BAPETEN Nomor 1812 Tahun 2025 tentang Penetapan Nilai Tingkat Panduan Diagnostik Indonesia (Indonesian Diagnostic Reference Level). BAPETEN.
  11. Badan Pengawas Tenaga Nuklir. (2026, 8 April). Sosialisasi Penilaian Penerapan Tingkat Panduan Diagnostik dan Hasil Penetapan Tingkat Panduan Diagnostik Indonesia Tahun 2026. BAPETEN.
  12. Radiological Society of North America (RSNA), American College of Radiology (ACR), & American Society of Radiologic Technologists (ASRT). (2024). Radiation Safety for Children. RadiologyInfo.org.
  13. Bankier AA, MacMahon H, Colby T, Gevenois PA, Goo JM, Leung ANC, et al. (2024). Fleischner Society: Glossary of terms for thoracic imaging. Radiology, 310(2), e232558.
  14. Heartology Cardiovascular Hospital. (n.d.). Cardiovascular Diagnostic Center.
  15. American Heart Association. (2024). Warning Signs of a Heart Attack. American Heart Association.

The information on this page is for educational purposes and does not replace medical consultation, diagnosis, or treatment. For any health concerns, please consult a doctor directly.

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