Penile non-imaging and imaging

Question 1

limitations:

Answer 1

a) High level of anxiety or antagonism
b) duplex needed for velocities and anatomic conditions
c) sensitivity to injectable medication

Question 2

ABI calculated for penile arterial evaluation?

Answer 2

poor arterial inflow to LE due to prox obstruction may affect penile arterial flow.

Question 3

Technique for penile pressures

Answer 3

Obtained with Doppler or PPG
Probe placement: lateral or ventral
Cuff size 2.5 cm x 12.5cm

Question 4

Penile/brachial index

Answer 4

Normal = > 0.75
marginal = 0.65-0.74
abnormal=

Question 5

Reduced pressures is highly suggestive of what level disease?

Answer 5

proximal arterial disease

aorta-iliac; internal iliac arteries

Question 6

In penile imaging, prior to injection of medication what arteries are measured in trans?

Answer 6

cavernous (cavernosal) arteries

Question 7

Where is medication injected into the penis to induce erection?

Answer 7

lateral aspect, proximal shaft

Question 8

1-2 minutes post-injection, the same measurements of the cavernous arteries are obtained. When normal should the arteries increase or decrease post-injection?

Answer 8

increase

PSV should increase. 30 cm/sec or higher are normal

Question 9

The velocity of what veins are measured?

Answer 9

dorsal

Question 10

Dorsal vein velocities should not increase, an increase could suggest what?

Answer 10

venous leak

normal = 20 cm/sec