Imaging Flashcards
Define hydronephrosis
distension and dilation of the renal pelvis and calyces caused by obstruction of urine from kidney
What type of lesions may be malignant?
solid lesions
When is an MRI usually used for assessing renal masses?
Usually reserved for patients with CT contraindications (contrast) or patients with complex masses.
Huge advantage to MRIs
no ionizing radiation
Gold standard imaging technique for renal artery stenosis
renal arteriography
What test do you need to obtain before getting a renal arteriography?
SCr
Purpose of renal venography
diagnosis of renal vein thrombosis
One advantage of nuclear imaging
can predict the GFR
Purpose of voiding cystourethrogram
detects vesicoureteral reflux
Which test is most accurate for diagnosing a kidney stone?
CT scan
A 64 year old man has a Cr of 2.3 and has been diagnosed with chronic renal failure. What is the best initial imaging test?
US of the kidneys
A 56 yo woman presents with flank pain and bloating. What would be your initial imaging test?
KUB
Your patient has had 6-10 RBC’s on his UA x 3. What would be the best initial study to do prior to him being seen by the specialist?
Ultrasound
What study is used with suspected polyarteritis nodosa or aneuryms?
renal arteriography
What test is the gold standard for renal stones, renal cell carcinoma, renal vein thrombosis, PKD?
CT scan
