Echocardiogram for Dogs: A Guide

An echocardiogram for dogs is one of the best ways to get a close look at how their heart is working in real time. At Good Dog Veterinary Care, we partner with Insight Veterinary Ultrasonography of Georgia to offer specialist level diagnostic imaging services on site, including echocardiograms and expert ultrasound and radiology interpretations. If you are looking for a trusted East Cobb veterinarian for heart related concerns in dogs, Good Dog Veterinary Care can help guide you through the next steps. We also care for dogs from Smyrna and West Cobb, providing the same focused, dog only veterinary service across all locations.

What is an Echocardiogram for Dogs?

A simple definition

An echocardiogram is a cardiac ultrasound. It uses sound waves to create live images of the heart so your veterinary team can evaluate how it looks and how it functions while it is beating.

What it helps veterinarians see

An echocardiogram gives a much more detailed view of the heart than a basic exam alone. It helps veterinarians assess the heart chambers, heart valves, heart wall thickness, blood flow, and overall heart function. It can also help identify fluid around the heart or any masses on the heart, which may be an important finding in some cardiac cases.

How it differs from an X-ray or ECG

Each test looks at something different. X-rays show the overall structures in the chest, giving a general size and shape of the heart and whether there are changes in the lungs. An ECG looks at the heart’s electrical rhythm to help detect any arrhythmias. An echocardiogram shows the heart’s structure and function in motion, which makes it one of the most useful tools for understanding many heart conditions in dogs

Why a Dog Might Need an Echocardiogram

A heart murmur

A heart murmur does not automatically mean a dog has serious heart disease. Some murmurs are mild, and some may not cause major problems at all. Still, a murmur often needs more evaluation because it can also be a sign of structural heart changes that should not be ignored. An echocardiogram helps determine where that murmur is coming from.

Symptoms that may prompt testing

Some dogs need an echocardiogram because they are showing signs that could point to a heart issue. Common examples include coughing, fainting, trouble breathing, exercise intolerance, or general weakness. These signs do not always mean heart disease is present, but they are important enough to take seriously and investigate further.

Monitoring an existing heart condition

An echocardiogram is not only useful for diagnosis. It can also be an important tool for monitoring a dog that already has a known heart condition. It helps track progression over time and gives your veterinary team a better sense of whether treatment is helping or whether the plan needs to be adjusted.

What an Echocardiogram Can Detect

Valve disease

Heart valve disease is the most common reason why a dog may need an echocardiogram. This test can help show how well the valves are working and whether blood is moving through the heart the way it should.

Chamber enlargement

X-rays (radiographs) can only tell if the heart is enlarged, but an echocardiogram can tell us which chamber is enlarged and why.

Congenital heart defects

Some dogs are born with heart abnormalities. An echocardiogram can help identify congenital heart defects and show how significant they are, which is especially helpful in puppies or younger dogs with a newly detected murmur.

Fluid around the heart

This imaging can also detect fluid around the heart. That finding can be serious and may need emergent intervention, which is one reason echocardiograms can play such an important role in a dog’s care.

Changes in heart pumping function

An echocardiogram helps evaluate how well the heart is pumping. If the heart muscle is not contracting normally, the test can help show that. This gives your veterinary team better information for diagnosis, treatment planning, and ongoing monitoring.

The real value of an echocardiogram is that it does more than confirm that something might be wrong. It helps show what is happening inside the heart, how significant it is, and what the next steps should be. That is what makes it such an important tool when a dog has a murmur, symptoms, or a known heart condition.

A dog echocardiogram appointment is usually straightforward, low stress, and much easier on most dogs than owners expect.

Heart Wall Thickness

An echocardiocardiogram can also measure the heart’s wal thickness. This is extremely important for large breed dogs who are prone to Dilated Cardiomyopathy and dogs are grain -free diets. The substitution in some grain free diets can lead to a loss of heart muscle and eventually heart failure. 

Make sure to talk to your veterinarian about which diet is best for your dog and if your dog is at risk for Dilate Cardiomyopathy. 

What to Expect During the Appointment

Where the test is done

Echocardiograms are usually performed in a calm, quiet setting where the team can focus on getting clear images of the heart. Most dogs are positioned on a padded ultrasound table so the provider can safely and comfortably access the chest area during the scan.

What the process feels like for the dog

The test is noninvasive and painless. It does not involve surgery or anything harsh. Most dogs tolerate it very well with gentle handling and minimal restraint, and many do not need sedation at all.

Will my dog be shaved

In some cases, a small area may be clipped if needed to improve image quality and help the ultrasound probe make better contact with the skin. If that is necessary, it is usually very minimal.

How long it usually takes

The scan itself is often fairly quick. That said, the full visit can take longer depending on your dog’s history, whether any additional testing is needed, and how much time is spent reviewing the results and recommendations afterward.

Do Dogs Need Sedation for an Echocardiogram?

Usually no

Most dogs do not need sedation for an echocardiogram. The test is gentle, quiet, and well tolerated by many patients, especially when they are handled in a calm environment.

When sedation might be considered

If needed, a light cardio-safe sedation is given. Ask your veterinarian, as sometimes it can be avoided by giving oral sedatives prior to the visit (i.e trazodone/gabapentin)

How to Prepare Your Dog for an Echocardiogram

Food and water

Dogs usually do not need to fast before an echocardiogram unless you are specifically told otherwise. In most cases, normal access to food and water is fine.

Medications

If your dog is already taking heart medication or any other prescription, ask whether those medications should be continued as normal before the appointment. It is always better to confirm ahead of time instead of guessing.

What to bring

Bring anything that helps the team get a clearer picture of your dog’s health. That may include:

• current medications
• Current diet
• particularly coughing, weakness, exercise intolerance
• questions you want to ask the veterinarian

Who Performs an Echocardiogram for Dogs?

Why experience matters

Cardiac imaging is more specialized than a general ultrasound. It is focused specifically on the heart, which means both image capture and interpretation require a higher level of experience and training. That matters because treatment decisions often depend on subtle details.

Good Dog’s specialist imaging partnership

Dr. Alvey is specifically trained to capture all of these images and give a preliminary result. However, to ensure your dog is getting specialist care, the images are also sent to a cardiologist within Insight Veterinary Ultrasonography to fully review the images and give a detailed cardiology report.

What Happens After the Echocardiogram?

Reviewing the results

After the echocardiogram, the findings are reviewed so you can better understand what was seen and what it means for your dog. The goal is not just to name a problem, but to explain how significant it is and what comes next.

Possible next steps

Next steps depend on what the imaging shows. In some cases, monitoring may be enough. In others, your dog may need medication, additional diagnostics, or follow up imaging to track changes over time. Some dogs may also need referral based care depending on the condition and severity.

Working with your primary veterinarian

One of the most important parts of the process is coordinated care. Clear communication between the imaging specialist and your primary veterinary team helps make sure your dog’s care plan is practical, informed, and easy to follow. That team approach is a big part of what helps owners feel more confident after a dog echocardiogram.

Frequently Asked Questions About Echocardiograms for Dogs

What is an echocardiogram for dogs?

An echocardiogram for dogs is a heart ultrasound. It uses sound waves to create live images of the heart so the veterinary team can evaluate its structure, movement, and function in real time.

Why would a dog need an echocardiogram?

A dog may need an echocardiogram if a heart murmur is detected or if there are signs that could point to heart disease. It is also commonly recommended when a dog has coughing, fainting episodes, breathing changes, weakness, or reduced stamina.

Is an echocardiogram painful for dogs?

No, an echocardiogram is not painful. It is a noninvasive test, and most dogs handle it very well with gentle restraint and a calm environment.

Do dogs need sedation for an echocardiogram?

Most dogs do not need sedation for an echocardiogram. In some cases, sedation may be considered if a dog is very anxious or having a hard time staying still enough for clear images.

How long does an echocardiogram take?

The scan itself is often fairly quick, but the full appointment may take longer. That is because the visit can also include reviewing your dog’s history, performing other recommended testing, and going over the results and next steps.

Will my dog need to be shaved?

Yes, dogs will need to be shaved to ensure we get the best image quality.

Can a regular veterinarian perform an echocardiogram?

At Good Dog, Dr. Alvey can usually do same day echocardiograms that then get interpreted by a veterinary cardiologist to ensure your dog gets the best of both worlds.

What can an echocardiogram detect in dogs?

An echocardiogram can detect a range of heart related issues, including valve disease, enlarged heart chambers, congenital heart defects, fluid around the heart, heart tumors, and changes in how well the heart is pumping. It helps show what is happening inside the heart, not just whether a problem might be present.

How should I prepare my dog for an echocardiogram?

Most dogs do not need special preparation. Unless your veterinary team tells you otherwise, food and water are usually fine. It is helpful to bring a list of medications, any prior test results, notes about symptoms you have noticed, and any questions you want answered.

What happens after the test?

After the echocardiogram, the results are reviewed and explained. Depending on the findings, the next step may be monitoring, medication, more diagnostics, or follow up imaging. In some cases, ongoing coordination with your primary veterinarian is an important part of the care plan.

When to Schedule an Evaluation

Do not ignore signs like coughing, fainting, breathing changes, weakness, or a newly detected heart murmur. Those issues do not always mean a serious heart problem is present, but they are important enough to evaluate early so you have a clearer picture of what is going on.

If you need care for a dog with a heart murmur or other cardiac concerns, contact Good Dog Veterinary Care to schedule an evaluation.

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