Renal artery disease is correctable with?
Treatment will control or cure Renovascular hypertension,
Retention of renal mass,
Stabilization of renal function
in parenchyma, PSV ______ and length _____ consistent with chronic renal artery occlusion
<10 cm/s, <9 cm
What does this waveform suggest?
FMD
Kidney length is _____ cm; width of ______ cm
8-13cm and 5-7cm
spectral waveforms should be recorded from the level of ____ & ____.
celiac and SMA
true/ false: Second most common renal artery disease, medial fibromuscular dysplasia.
True. it causes string of beads affect (non-atherosclerotic disease affects mid to distal segments)
True/ False: Atherosclerosis is most common in renal artery disease
True. bilateral 30%
Renal artery stenosis should be suspected with.....?
Sudden onset or worsening of chronic hypertension
Unexplained renal insufficiency or pulmonary edema
Hypertensive children
In severe ________ hypertension patients, up to ____% are related to renal artery _____.
diastolic, 60%, stenosis
what is the angle of insonation when doing doppler within the kidney?
0 degrees
With >80% stenosis, changes include
Delayed systolic upstroke
Loss of compliance peak
PSV decreased distally
Compromised flow would result in length difference greater than ___ cm?
1 cm
What is shown in the image?
FMD
What are kidneys important landmarks?
Transpyloric plane
Located halfway between suprasternal notch and symphysis pubis
what is renal-aortic ratio?
normal=< 3.5
occluded = kidney length <8cm
Aorta is evaluated in _______ plane, beginning at the level of _____ _______.
sagittal, ( xiphoid process, <60degrees)
Rigth kidney is _____ to left.
inferior
Up to ___% of hypertensive patients have underlying renal disease
6%
True/ False: Duplex ultrasound is used to detect renal artery stenosis,
*Provides anatomical as well as hemodynamic functional information
*Low cost wo risk of ionizing radiation or use of nephrotoxic contrast agents
True
PSV greater ____ cm/s and stenosis greater ___ % is flow reducing renal artery stenosis.
180cm/s and >60%