Vascular Mod 7

Question 1

Rate of a common celiac and SMA trunk

Answer 1

< 1%

Question 2

Normal PSV in celiac

Answer 2

< 200 cm/sec

Question 3

Normal PSV and EDV in SMA

Answer 3

< 275 cm/sec

< 45 cm/sec

Question 4

Diagnostic criteria for occlusive Celiac

Answer 4

PSV > 200 = 70% stenosis
EDV > 55 = 50% stenosis

Post-stenotic turbulence

Question 5

Diagnostic criteria for occlusive SMA

Answer 5

PSV > 275 = 70% stenosis
EDV > 45 = 70% stenosis

Post stenotic turbulence

Question 6

Visceral collaterals

Answer 6

Meandering mesenteric artery
Central anastomotic mesenteric artery
Marginal artery of Drummond
Arc of Riolan

Question 7

probes used for renal imaging

Answer 7

Curved linear 3-5 MHz

Sector 2-4 MHz

Question 8

Normal waveform of renal arteries

Answer 8

1) low resistance
2) rapid systolic upstroke
3) early compliance peak
4) rapid deceleration
5) positive diastolic flow

Question 9

Renal artery disease diagnostic categories and duplex criteria

Answer 9

1) normal: PSV < 180; RAR < 3.5
2) < 60%: PSV > 180; RAR < 3.5
3) > 60%: PSV > 180; RAR > 3.5
4) occluded: no signal

Question 10

Pole to pole kidney length difference between two sides that are considered significant

Answer 10

> 1.5 cm difference

normal > 9 cm each

Question 11

Normal renal systolic rice time

Answer 11

< 100 msec

Question 12

Pourcelot’s

Answer 12

Resistive index
RI = (PSV - EDV)/PSV
normal < 0.7