Echocardiogram: What to Expect From a Heart Ultrasound
An echocardiogram is an ultrasound of the heart — real-time movies of every heartbeat, no radiation, no needles for the standard version. Here is what the day involves and what the images reveal.
An echocardiogram uses ultrasound to create moving images of your heart, showing its pumping strength, valve function, and chamber sizes. The standard version is a painless 30–60 minute scan with gel and a probe on the chest; some patients need a transesophageal echo (a probe passed into the esophagus under sedation) or a stress echo (images before and after exercise). No radiation is involved at any point.
Why would I need an echocardiogram?
Doctors order echo for heart murmurs, shortness of breath, chest discomfort, swollen legs, irregular rhythms, and follow-up after heart attacks or valve disease. It measures the ejection fraction — the heart's pumping percentage — and watches every valve open and close, catching leaks and narrowing in motion.
What happens during a transthoracic echocardiogram?
You lie on your left side while the sonographer applies gel and presses a probe against your chest, angling between the ribs for heart views. The room is dimmed so the images show clearly on the monitor; you will hear the swoosh of your own blood flow translated into sound. Expect gentle pressure and cold gel, some repositioning, and occasional breath-holds. The exam takes 30–60 minutes.
What are the different types of echocardiogram?
| Type | What it is | When used |
|---|---|---|
| Transthoracic (TTE) | Probe on the chest — the standard echo | Most heart questions; first-line for everything |
| Transesophageal (TEE) | Probe down the esophagus, sedated | Detailed valve checks, clot hunting, when chest views are poor |
| Stress echo | Images at rest and after exercise or medication | Detecting artery blockages by watching wall motion under stress |
| Bubble study | Agitated saline injected during TTE | Detecting shunts between heart chambers |
What does an echocardiogram show?
- Pumping strength — the ejection fraction, heart's most-watched number
- Valve disease — leaks (regurgitation) and narrowing (stenosis)
- Chamber sizes and wall thickness — clues to long-term pressure strain
- Pericardial effusion — fluid around the heart
- Congenital defects and shunts, including with bubble studies
- Blood-flow velocities through Doppler, quantifying every gradient
How do I prepare, and when do results come?
A standard TTE needs no preparation — eat, take medications, dress normally. TEE requires fasting (usually 6 hours) and a driver because of sedation. Results: the sonographer captures images during the scan, but the cardiologist's report usually reaches your doctor within days, often sooner for urgent questions.
Echo Time Planner
Estimate your appointment:
Estimate only. Actual times vary by facility, scanner, and protocol. Your imaging center's instructions always come first.
Heart echo scheduled?
Ask our team anything about the scan or your preparation.
Contact SATMED HealthFrequently asked questions about echocardiograms
Does an echocardiogram hurt?
A standard echo is painless — cold gel and gentle pressure only. A TEE involves throat numbing and sedation; a sore throat afterward is the common complaint.
How long does an echocardiogram take?
30–60 minutes for a transthoracic study. Stress and transesophageal echoes run longer.
What is a good ejection fraction?
A normal ejection fraction sits around 50–70%. Your cardiologist interprets yours alongside the rest of the images, never as a standalone verdict.
Will I get results right away?
The sonographer cannot diagnose during the scan, but the cardiologist's report typically reaches your doctor within days — ask when to expect the call.
Can an echo show blocked arteries?
A standard echo shows the effects of blockages under stress (stress echo), not the blockages themselves directly. CT angiography or catheterization maps the arteries.
Do I need to fast for an echocardiogram?
Only for TEE. The standard transthoracic exam has no fasting requirement at all.
How SATMED Health makes contrast imaging safer
If your exam includes contrast, the delivery equipment matters as much as the scanner. SATMED Health engineers the systems behind every injection.
Contrast injector systems built for controlled, consistent delivery — the right dose at the right moment, every time.
Learn more →Engineered syringes for smooth, low-pressure injections that reduce discomfort and protect the vessel at the IV site.
Learn more →Patient lines and accessories designed for safe, reliable contrast administration from injector to vein.
Learn more →Contrast management solutions that help departments prepare, verify, and track every dose before it reaches a patient.
Learn more →Keep reading
More free, clinician-reviewed guides from SATMED Health.
Sources
- Cleveland Clinic. Echocardiogram: Types and What to Expect.
- RadiologyInfo.org (ACR · RSNA · ASRT). Cardiac (Heart) MRI. Reviewed June 15, 2026.
- American College of Radiology. ACR Accredited Facilities Database.
Every heartbeat, watched closely
Browse more free imaging guides or reach out with any question.
Contact SATMED HealthMedical disclaimer: This article is for education only and is not medical advice, diagnosis, or treatment. Always follow the instructions of your imaging facility and your own physician. If you think you are having an emergency, call 911 (or your local emergency number) immediately.
Please note: SATMED Health is not a medical facility. Please contact your physician with specific medical questions or for a referral to a radiologist. To locate an accredited medical imaging provider in your community, search the ACR accredited facilities database. This website does not provide cost information; imaging costs vary by region.
