Term
| Doppler Spectral Waveform |
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Definition
| provides velocity, blood flow turbulence, and vascular impedance |
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Term
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Definition
| real-time imaging capability and Doppler capability used to collect continuous wave or pulsed Doppler signals, either simultaneously with imaging or sequentially |
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Definition
| flow direction away from the liver |
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Definition
| flow direction toward the liver |
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Term
| high-resistance Vascular Bed |
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Definition
| vessels with reversed flow in diastole that supply organs that do not demand constant blood perfusion |
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Term
| low-resistance vascular bed |
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Definition
| vessels supplying organs that demand constant forward blood flow or perfusion |
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Term
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Definition
| an increase in echoes proportional to an increase in turbulence of flow disturbance |
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Term
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Definition
| relatively signal-free are between the arterial Doppler shift signal and the baseline during the systolic portion of a Doppler spectral display |
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Definition
| anterior and slightly left to spine, terminates at 4th lumbar vertebral and then bifurcates |
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Term
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Definition
| posterior to lt renal vein, sma, splenic vein, pancreas body, celiac, splenic , CHA, LT gastric, interior duodenum, stomach, peritoneum, liver |
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Definition
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Definition
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Definition
| appear anechoic, with bright, echogenic walls |
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Definition
| best visualized in a transverse plane, superior to the body of the pancreas |
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Definition
| low-resistance end organs , the liver and spleen |
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Definition
| longer than the left because it must pass behind the IVC and right renal vein to enter the hilum of the right kidney |
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Term
| low resistance vascular beds |
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Definition
| liver, spleen, and kidneys have high metabolic rates and demand constant forward blood flow |
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Term
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Definition
| there is relatively high resistance to arterial flow to the tissues of the gut |
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Term
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Definition
| are low-resistance organs taht demand constant blood flow to moderate their metabolic activity (brain, eyes, liver and spleen are also the same) |
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Term
| IVC AND its tributes drain |
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Definition
| the lower extremities , large and small intestines, kidney, and liver.d |
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Term
| How many cm does the SMA of the anterior wall of the AO |
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Definition
| 1-2cm inferior to the origin of the celiac axis |
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Term
| where do the right and left renal arteries originate from |
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Definition
| the lateral wall of the AO and it is 1-1.5 cm below the SMA and just posterior to the renal veins |
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Definition
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Definition
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Term
| the abdominal arteries normally appear as |
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Definition
| anechoic structures with bright echogenic walls |
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Term
| the liver spleen and kidneys have |
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Definition
| high metabolic rates and demand constant forward blood flow |
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Term
| the stomach and small intestine offer a |
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Definition
| high resistance vascular bed to the sma |
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Term
| in the fasting state there is |
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Definition
| relatively high resistance to arterial flow to the gut |
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Term
| the kidneys,like the brain,eyes,liver and spleen are |
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Definition
| low resistance organs that demand constant blood flow to moderate their metabolic activity |
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Term
| doppler spectral waveforms from the celiac, hepatic and splenic arteries demonstrates |
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Definition
| forward diastolic flow compatible with high flow demands of the liver and spleen |
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Term
| the normal waveform from the proximal renal artery usually demonstrates a clear |
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Definition
| a systolic window with spectral broadening |
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Term
| the portal venous system does not communicate with |
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Definition
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Term
| the portal venous system can be affected by |
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Definition
| posture and change the flow of the doppler |
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Term
| flow in the main portal vein is |
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Definition
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Term
| the portal venous system can be affected by |
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Definition
| posture and change the flow of the doppler |
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