An echocardiogram usually takes between 30 and 60 minutes from the moment you lie down on the exam table to the moment you sit up and get dressed. The actual ultrasound scanning portion typically runs 20 to 40 minutes. A stress echo takes longer — often 60 to 90 minutes total — because it includes imaging at rest, a treadmill or medication phase, and imaging again afterward.
That is the short answer. The longer answer depends on which type of echo your doctor ordered, why they ordered it, and how clearly your heart shows up on the screen. Some hearts are easy to image. Others are not.
What Happens During a Standard Echocardiogram?
A standard transthoracic echocardiogram (TTE) is the most common type. You lie on your left side on an exam table. A technician called a sonographer places a small probe against your chest, usually after applying a clear gel.
The probe sends high-frequency sound waves into your chest. Those waves bounce off your heart’s walls, valves, and chambers. A computer converts the returning echoes into moving images on a screen. No radiation is involved. The sound waves are outside the range of human hearing.
The sonographer moves the probe to different positions — under your left breast, near your breastbone, sometimes near the base of your neck or below your ribcage. Each position captures the heart from a different angle. You may be asked to hold your breath briefly or to breathe out slowly. These maneuvers help get clearer pictures.
You will hear whooshing sounds during the test. That is the machine translating blood flow into audio. It does not mean anything is wrong.
The scanning itself is painless. The main discomfort people report is pressure from the probe and mild soreness from holding still on a hard table. The gel can feel cool.
How Long Does Each Type of Echocardiogram Take?
Different echo types have different timelines. Here is a practical breakdown.
| Type | Typical total time | What it involves |
|---|---|---|
| Transthoracic (TTE) | 30–60 minutes | Probe on chest, resting images |
| Stress echo (treadmill) | 60–90 minutes | Rest images, exercise, post-exercise images |
| Stress echo (medication) | 60–90 minutes | Rest images, drug infusion, post-infusion images |
| Transesophageal (TEE) | 60–90 minutes including recovery | Sedation, probe passed down the throat |
A TTE is the workhorse. It answers most questions about heart chamber size, pumping function, valve structure, and fluid around the heart. A stress echo adds information about how the heart performs under physical or pharmacological stress. A TEE gives closer views of structures that are hard to see from the chest wall, such as parts of the valves or the upper chambers.
These are typical ranges, not guarantees. A technically difficult study can run longer. An experienced sonographer with a cooperative patient often finishes faster.
Why Does an Echocardiogram Take Different Amounts of Time?
Several factors stretch or shrink the timeline.
- Body habitus. Sound waves travel differently through different tissues. More chest wall tissue can scatter the signal and make images harder to capture.
- Lung position. Lungs filled with air block ultrasound. If your lungs sit between the probe and your heart, the sonographer has to work around them.
- What the doctor needs to know. A quick check for fluid around the heart takes less time than a detailed valve assessment or a search for a source of stroke.
- Heart rhythm. Irregular rhythms make it harder to capture consistent images across the cardiac cycle.
- Patient cooperation. Holding still and following breath instructions helps. Restlessness or difficulty holding a position adds time.
- Sonographer experience. A skilled sonographer often obtains diagnostic images faster.
One thing people rarely realize: the sonographer is not the person who interprets the study. They acquire the images. A cardiologist reviews them later and writes the report. That means your total experience — from check-in to walking out — can be longer than the scan itself, and your results will not be ready the moment you leave.
How Long Does a Stress Echocardiogram Take?
A stress echo is longer because it has more steps. The test compares your heart at rest to your heart under stress.
First, the sonographer captures resting images. That takes about 15 to 20 minutes. Then you either walk on a treadmill or receive a medication that makes your heart work harder. If you exercise, the goal is usually to reach a target heart rate based on your age. If you cannot exercise, a drug such as dobutamine is used instead.
Once you reach peak stress, you get off the treadmill or the infusion stops, and you lie back down quickly for another set of images. Speed matters here — the heart returns to its resting state within minutes, so the post-stress images need to be captured fast.
The total appointment, including preparation and recovery, commonly runs 60 to 90 minutes. Some labs schedule a full hour and a half for these.
How Long Does a Transesophageal Echocardiogram Take?
A TEE takes longer than a TTE because it involves sedation and a scope. You will not eat for several hours beforehand. On the day of the test, you receive medication to relax you — often conscious sedation. A thin, flexible tube with an ultrasound probe at the tip is guided down your throat and into your esophagus.
Because the esophagus sits directly behind the heart, the images are often sharper than what you get through the chest wall. This is why TEE is used when doctors need detailed views of the heart’s back structures, valves, or when looking for blood clots in certain chambers.
The procedure itself usually takes 20 to 40 minutes. But you need time for sedation to take effect, time to wake up, and time to be monitored afterward. Plan on 60 to 90 minutes or more for the entire visit. You will need someone to drive you home.
Does an Echocardiogram Hurt?
A standard TTE does not hurt. You may feel pressure from the probe, especially when the sonographer presses between your ribs. Some people find the left-side position uncomfortable after 20 or 30 minutes, particularly if they have back or shoulder problems.
A stress echo can be physically demanding if you exercise. You may feel short of breath, tired, or have sore muscles afterward. If a medication is used to stress your heart, you might feel your heart racing, flushing, or mild chest discomfort. The medical team monitors you throughout and can stop the test if needed.
A TEE involves a sore throat afterward and grogginess from sedation. Serious complications are uncommon but possible, which is why the procedure is done in a controlled setting with monitoring.
How Should You Prepare for an Echocardiogram?
For a standard TTE, preparation is minimal. Wear a two-piece outfit so you can remove your top easily. Skip lotions or powders on your chest — they can interfere with the probe’s contact. You can eat and drink normally.
For a stress echo, you may be asked to avoid caffeine for several hours beforehand and to hold certain heart medications. Follow your doctor’s specific instructions. Wear comfortable shoes if you will be walking on a treadmill.
For a TEE, you will need to fast for several hours. Arrange a ride home. Tell the team about any medications you take, especially blood thinners, and any allergies.
In all cases, tell the sonographer if you have had breast surgery, a pacemaker, or a defibrillator. These can affect how the test is done or where the probe is placed.
When Will You Get Your Results?
Not during the test. The sonographer cannot give you results, even if they see something. A cardiologist or trained physician reviews the images and writes a report. That typically takes a few hours to a few days, depending on the lab’s workflow and the urgency of your situation.
If the study was ordered for an urgent reason — such as suspected infection around the heart or a possible blood clot — results may come back faster. For routine evaluations, a few days is normal.
Ask your doctor’s office when and how you will receive the results. Some offices call with findings. Others discuss them at a follow-up visit.
Frequently Asked Questions
How long does an echocardiogram take from start to finish?
A standard transthoracic echo usually takes 30 to 60 minutes total, including setup and the scan itself. Stress and transesophageal echoes take longer, often 60 to 90 minutes.
Can I drive myself home after an echocardiogram?
Yes, you can drive yourself after a standard transthoracic echo. If you had sedation for a transesophageal echo, you will need someone else to drive you.
Do I need to fast before an echocardiogram?
No fasting is needed for a standard transthoracic echo. You will need to fast for several hours before a transesophageal echo because of the sedation.
Why does my echocardiogram report take so long?
The sonographer captures images, but a cardiologist interprets them and writes the report afterward. This typically takes a few hours to a few days, depending on urgency and the lab’s workflow.
