Module 6: Doppler of the Pelvis and 3D/4D

Which of the following represents the pulsatility index?

(PSV-EDV) / Mean velocity

"High resistance" implies the distal bed....

has constricted arterioles

A resting organ with low oxygen demands (e.g., a postmenopausal ovary) will typically have what type of blood flow appearance on spectral Doppler?

high resistance

You run a half marathon (good for you!) After you cross the finish line, but before scarfing a bear claw, you get a Doppler ultrasound of the arteries in your legs. Which waveform is most likely?

low resistance, monophasic

An ovary during ovulation is likely to have what type of flow?

low resistance

The ovary receives blood from the ovarian a., which originates at the _________________, and the ovarian branch of the uterine artery, which receives blood from the _______________.

aorta; internal iliac a.

Which of the following supplies the uterus with blood?

internal iliac a.

The peripheral circumferential artery in the myometrium is the

arcuate a.

Which of the following techniques is typically used to obtain measurable (quantifiable) velocities in the pelvis? 

PW Spectral Doppler

Which of the following about pelvis venous drainage is true?

The right ovarian v. drains into the IVC

Pelvic congestion syndrome most commonly occurs on what side?

Left

This Doppler measurement takes the highest systolic peak minus the highest diastolic peak divided by the highest systolic peak.

Pourcelot resistive index

Select the definition of a low-resistance arterial flow.

High systole, high diastole

What phase of vascular flow does the red arrow indicate?

Systole

Low resistance blood flow in the ovary would be most common...

In the late proliferative phase

The vessel that navigates the perimeter of the myometrium is the

arcuate a.

The right ovarian vein terminates at what blood vessel?

IVC

Which of the following quantifies the ratio of peak systolic velocity to end diastolic velocity?

S/D ratio

Which vessel carries blood toward the uterus?

Uterine artery

Which of the following describes spectral Doppler flow found surrounding the corpus luteal cyst?

Low-resistance flow