Ultrasound Registry review rvt correctly answered 2023

Ultrasound Registry review rvt correctly answered 2023Hemodynamically significant stenosis of the celiac axis is diagnosed with the PSV greater than - correct answer 2.0 m/s. A renal transplant RI should not exceed - correct answer 0.80 Hemodynamically significant stenosis of the SMA is diagnosed when the peak systolic velocity is greater than? - correct answer 2.75 m/s Venous flow in the IVC, hepatic and renal veins normally demonstrate - correct answer respiratory phasicity and mild cardiac pulsatility. Parenchymal Resistance Ratio or End Diastolic Ratio is used to assess parenchymal resistance in renal transplant cases. - correct answer PRR <0.2 indicates increased resistance and possible rejection. PRR = EDV / PSV = 6 / 36 = 0.17 refers to extensive diffuse atherosclerotic disease causing obstruction of the distal aorta and bilateral lower - correct answer Leriche syndrome Doppler waveforms from arteries in a rejected allograft will demonstrate - correct answer High resistance Renal artery stenosis is considered hemodynamically significant when it is greater than - correct answer 60% What is the first branch of the ascending aorta? - correct answer Coronary arterie The arc of Riolan and the marginal artery of Drummond connect the - correct answer SMA and IMA through the mesentery. They offer potential for collateral flow if a mesenteric obstruction occurs. The renal allograft artery is commonly attached to the - correct answer native internal or external iliac artery. Mesenteric ischemia requires stenosis or occlusion of - correct answer at least two of the mesenteric arteries. (Celiac, SMA, or IMA) Only SMA stenosis is present. The other velocities are normal for the IMA and celiac.