Doppler Ultrasound
Ultrasound, Doppler
What To Think About
- Producing accurate test results with Doppler ultrasound requires a skilled examiner. The scans are usually read within a short period of time in case repeat tests are needed.
- Because Doppler ultrasound requires a person to hold very still, some children may need to be sedated so that their movements do not interfere with the results.
- Angiography and venography are X-ray tests that require the injection of contrast material. In many cases, Doppler ultrasound may be done instead of angiography or venography, since it is faster, less expensive, and noninvasive. If results from a Doppler ultrasound are inconclusive, an angiography or venography test may be done. Angiography is usually more accurate than Doppler ultrasound and is considered the most definitive test for evaluating blood flow through an artery. Magnetic resonance angiography (MRA) and computed tomography (CT) angiography may be done instead of conventional angiography because these tests are less invasive and easier to perform than conventional angiography. In some cases, venography may be needed to confirm a suspected vein problem. For more information, see the medical tests Angiogram, Venogram, and Magnetic Resonance Angiogram (MRA).
- A Doppler ultrasound may be used to evaluate many body organs. It can also be used safely during pregnancy.
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| Author: | Jan Nissl, RN, BS | Last Updated: January 17, 2007 |
| Medical Review: | Paul D. Traughber, MD - Radiology Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology | |
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| Topic Contents | |
| Test Overview | |
| Why It Is Done | |
| How To Prepare | |
| How It Is Done | |
| How It Feels | |
| Risks | |
| Results | |
| What Affects the Test | |
 | What To Think About |
| References | |
| Credits | |