The additional value of visual findings in captopril-enhanced renal scintigraphy with Tc-99m MAG3.
Captopril-enhanced renal scintigraphy has become an important tool in the diagnosis of renovascular hypertension. The evaluation of these studies typically is based on a quantitative analysis of changes in renal radiotracer handling after angiotensin-converting enzyme inhibition. The use of mercaptoacetyltriglycine (MAG3) in these studies offers the optimum photon energy and high photon yield of a Tc-99m label with efficient renal extraction of tracer by tubular secretion. These qualities of Tc-99m MAG3 combine to produce high-resolution scintigraphic images that may supply additional valuable diagnostic information by visual assessment of the scintigraphic data. A series of cases illustrating the value of these visual findings is presented.
Department of Diagnostic Radiology, Columbia-Presbyterian Medical Center, New York, New York 10032.
M J
MJ
Fleishman
R L
RL
Greenspan
R L
RL
Van Heertum
D000328:Adult; D002216:Captopril; D005260:Female; D006801:Humans; D006978:Hypertension, Renovascular / Q000000981:diagnostic imaging*; D007668:Kidney / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011866:Radioisotope Renography; D017263:Technetium Tc 99m Mertiatide
D017263:Technetium Tc 99m Mertiatide; D002216:Captopril