Term
| In regards to U/S probes, the (higher/lower) the frequency the higher the detail and the (higher/lower) the penetration. |
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Definition
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Term
| What do the colors mean on Doppler? |
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Definition
-Blue Away
-Red Toward
-Green in turbulancd |
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Term
| How does a low Nyquist limit affect Doppler? |
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Definition
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Term
| What is continuous wave Doppler? |
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Definition
| -sends continuous Doppler signal: quantifies max velocity along one line |
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Term
| What do we use continuous wave Doppler to diagnose? |
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Definition
| -congenital lesions and to determine velocity of valve regurgitation |
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Term
| What does continuous wave Doppler allow us to measure mathematically? |
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Definition
-pressure gradient b/n two chamgers
-equition: V^2 X4 |
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Term
| What is pulse wave dopler? |
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Definition
-assess or pulse a single area and determinevelocity and time of waves in a defined area (equal symgbol)
-used to assess diastolic function |
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Term
| What does M mode w/ pulse wave Doppler allow us to measure? What do we want it to be? |
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Definition
-systolic function (fraction shortening)
-want it to be at least 25% |
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Term
| What is the ejection fraction? |
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Definition
| -the amount of blood being pumped out: take volume of ventricle and compare in systole and diastole |
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Term
| What is the E wave? A wave? |
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Definition
-E = early filling
-A = atrial kick |
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Term
| What is the significance of altered pulmonary v flow? |
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Definition
| -means diastolic function of atrium is off |
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Term
| What is isovolumetric relaxation time (ICRT)? |
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Definition
| -time in which volume in heart should not change (diastolic function) |
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Term
| How do we measure the LA to see if it is enlarged? |
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Definition
-compare to size of aorta
-measure in side view |
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Term
| Which side of the heart should be smaller? |
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Definition
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Term
| How do we diagnose tumors in the heart? |
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Definition
| -mass on echo + location + signalment |
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Term
| How do we ID valve stenosis on echo? |
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Definition
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Term
| In the case of septal defects, which way does blood tend to flow? |
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Definition
| -left is higher P thus flows left to right |
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Term
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Definition
-includes narrative of chamger size
-LV systolic function estimates
-note valve anatomy and any regurge or stenosis
-estimate of diastolic function |
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