RENAL FLOW & EXCRETION

 

kidney(normal #1)

Clinical Indication: patient with right lower quadrant pain and hematuria - Lasix renal scan.

Dose: 12uCi Tc99m - DTPA given i.v.

Results: normal renal scan with symmetrical early function and no abnormalities seen.

  


kidney(abnormal #1) image#1 image#2 image#3

Clinical Indication: 18 month year old male w/ bilateral hydronephrosis and S/P left pyeloplasty.

Dose: 2 mCi Tc-99m-DTPA given i.v.; 5 mg Lasix given i.v.

Results: decreased blood flow to left kidney, 80% loss of filtration function in left kidney, 20% loss of filtration function in right kidney. Lasix wash-out half time - right kidney: 24 minutes, left kidney: 46 min.

(Abnormal atrophic left kidney with decreased flow and function, fairly normal right renal blood flow and function.)


kidney(abnormal #2) image#1 image#2 image#3 image#4

Clinical Indication: 55 year old white female - dynamic renal scan.

Dose: 10mCi Tc-99m-glucoheptonate given i.v.

Results: decreased blood flow to both kidneys, decreased function both kidneys. Excretion images: revealed multiple photopenic areas within the kidneys that filled w/ radiotracer. Lasix wash-out slow - 37 minutes. (Abnormal dynamic renal study consistent with patientís known polycystic kidneys without mechanical obstruction.)

  


kidney(abnormal #3) image#1 image#2 image#3 image#4

Clinical Indication: 27 year old white male - renal glomerular filtration rate.

Dose: no medication for baseline

Imaging: 3sec/frame(immediate) and 5min/frame(delayed)

Results: good perfusion both kidneys, good excretion, right kidney smaller. GFR - right: 51ml/min; left: 56ml/min. Left renal artery stenosis when compared to Captopril study. (Impression - left renal artery stenosis, chronic kidney disease of the right kidney with decreased differential function.)

  


kidney(abnormal #4) image#1 image#2 image#3

Clinical Indication: 76 year old white female w/ a history of hypertension -Captopril renal flow scan.

Dose: 15.54mCi Tc-99m-DTPA given i..v

Imaging: 3sec/frame and 5sec/frame over 30 minutes

Results: decreased flow to left kidney(slightly atrophic), decreased filtration function in left kidney and only slight decreased right renal function. GFR - right: 54ml/min; left: 30ml/min. (The changes in left kidney may be due to some secondary chronic renal disease.)

  


kidney(abnormal #5) image#1 image#2 image#3 image#4

Clinical Indication: 6 month old white male with known UPJ obstruction - LASIX renogram

Dose: 2mCi Tc-99m-MAGIII given i.v., 4.3mg Lasix given i.v.

Results: both kidneys symmetrically perfused; right kidney normal time to peak activity; right kidney contributes 48% early function and normal morphology with no evidence of obstruction; left kidney has increased size and a photopenic area which represents increased size of the collecting system; decreased uptake in upper left pole consistent with cortical thinning; progressive accumulation in a dilated collecting system proximal to the UPJ; left kidney delayed Lasix clearance time. (Split early function analysis: left = 52% and right = 48%).

  


kidney(abnormal #6)

Clinical Indication: status post right pyeloplasty - DTPA renal scintigraphy with diuretic washout - LASIX renogram.

Dose: 2mCi Tc-99m-DTPA given i.v., 5mg lasix i.v.

Results: symmetric kidney function; bilateral non-obstructive pelvocaliectasis.

  


kidney(abnormal #7)

Clinical Indication: 2 year old boy with bilateral hydronephrosis and vesico-ureteral reflux - Lasix renography.

Dose: 3mCi Tc99m - DTPA given i.v., 8mg Lasix given i.v.

Results: good blood flow to left kidney; decreased flow and function to right kidney; abnormal Lasix wash out in left kidney(prolonged - 41 minutes). (Significant obstruction of the left kidney.)

 


kidney(abnormal #17)

Clinical Indication: 62 year old white female - renal flow and function study.

Dose: 12mCi Tc-99m-DTPA given i.v.

Results: normal blood flow to left kidney; right kidney removed by surgery; left kidney has hydronephrosis without obstruction.

  


kidney (abnormal #18) image#1 image#2 image#3

Clinical Indication: patient is 26 year old w/ history of hypertension.

Dose: 14.5 mCi 99m Tc-DTPA given i.v.

Results: right kidney small than left; decreased peak activity and GFR in right kidney.

  


kidney (abnormal #19) image#1 image#2 image#3

Clinical Indication: 27 year old white male w/ renal vascular hypertension - study for renal GFR.

Dose: N/A

Results: good perfusion and excretion both kidneys; right kidney is smaller; left artery stenosis with decreased left GFR w/ catopril; chronic kidney disease of right kidney with decreased differential function.