Quiz #9 Abdominal Vasculature Part 1

list some challenges of abdominal doppler:

vessels are deeper

bowel gas

patient breathing

difficult to get 60 degree angle

the AO lies to the __________ of the midline

left

what is the first branch of the AO?

CA

the CA gives rise to the:

CHA

SA

LGA

CHA branches off CA to the:

right

SA branches of the CA to the:

left

what is the second branch of the AO?

SMA

the SMA branches approx ______ below CA

1cm

normal variants of the SMA may be present such as:

celiac and SMA arising off AO together

SMA runs inferior and _________________ to the aorta

parallel

RRA takes off the AO:

anterolateral

the RRA is _____________ to the IVC

posterior

LRA takes off the AO:

posterolateral

the LRA is _____________ to LRV

posterior

which renal artery is longer?

right

________% of people have duplicate renal arteries

15-25%

what is the last branch of the AO?

IMA

the IMA is ______________ to take off of renal arteries

inferior

the IMA comes of the AO:

anterolaterally toward patients left

the IMA feeds:

large bowel

the SMA feeds:

small bowel

what are the two patient positions for abdominal scanning?

supine

RLD or LLD

patient prep for abdominal scanning:

NPO 8 hours

the IVC is slightly to the ____________ of the midline

right

the LCIA dives deep before the RT

true

the AO becomes more _______________ distally

superficial

describe the doppler waveform of proximal AO:

sharp upstroke without reversal of flow

the renal arteries take _____% of cardiac output

25

measure just the ______ for all abdominal arteries

PSV

describe the doppler waveform of distal AO:

sharp upstroke with reversal of flow

below the renal arteries and distal vascular bed is:

higher resistance

above the renal arteries is:

low resistance

describe the doppler waveform of the CIA:

high resistance

sharp upstroke with flow reversal

triphasic

branches of the AO are:

low resistance

describe the normal waveform of the CA:

low resistance

PSV less than 200cm/sec

describe the normal waveform of the pre-prandial SMA:

high resistance

describe the normal waveform of the post-prandial SMA:

low resistance

describe the normal waveform of the RAs:

low resistance with sharp systolic peak

normal RA PSV:

less than 180cm/sec

normal RA RI:

less than 0.7

prox RA is closes to the:

AO

distal RA is closest to the:

kidney

RRA branches off anterolaterally at the ____o'clock position

10

LRA branches off posterolaterally at the ____o'clock position

4

the LRA is easier to obtain doppler angle than RRA

true

list the branching pattern of the RA:

RA > segmental > interlobar > arcuate > interlobular

how many segmental arteries are there?

5

normal adult kidney length:

9-12cm

normal cortical thickness:

1-2cm

RRA is longer than LRA

true

which RA is on top in the banana peel view?

RRA

which RA is on the bottom in the banana peel view?

LRA

the flank approach to renal artery doppler helps produce doppler waveforms at what 3 levels?

distal RA

hilum

renal parenchyma

renal hilum is best imaged in which plane?

TRV

describe the normal waveform of the renal hilum:

early systolic peak

rapid acceleration time

describe the normal waveform of renal parenchymal:

very low resistance

lots of diastolic flow

low velocity overall

RI=

PSV-EDV/PSV

normal renal RI:

less than 0.7

Resistance ratio=

EDV/PSV

normal resistance ratio:

greater than 0.2

List the branches of the aorta from most superior to inferior:

CA

SMA

RA

IMA

normal RA acceleration time:

less than 0.07

normal RAR:

less than 3.5