Assessment of living renal donors with spiral CT.
OBJECTIVE
To determine whether spiral computed tomography (CT) can be used to evaluate potential living renal donors.


METHODS
Twelve potential living renal donors underwent spiral CT and conventional arteriography. CT angiography was performed with 30-second spiral acquisition during injection of 150 mL of nonionic iodinated contrast material into an antecubital vein at 5 mL/sec. Five minutes after injection, a frontal abdominal scout projection was obtained to assess the renal collecting system. Results of blinded interpretations of axial CT angiograms, three-dimensional CT angiograms, and conventional arteriograms were correlated with intraoperative findings in 11 cases.


RESULTS
Axial and three-dimensional CT angiography were 100% sensitive for identifying seven accessory renal arteries and 14% and 93% sensitive for identifying five prehilar renal artery branches. Renal venous anomalies were confirmed in three patients at surgery. Operative management changed in four of 11 patients who underwent donor nephrectomy.


CONCLUSIONS
Spiral CT holds promise as a single examination for anatomic assessment of living renal donors.
Rubin
G D
GD
Department of Radiology, Stanford University School of Medicine, CA 94305-5105, USA.
Alfrey
E J
EJ
Dake
M D
MD
Semba
C P
CP
Sommer
F G
FG
Kuo
P C
PC
Dafoe
D C
DC
Waskerwitz
J A
JA
Bloch
D A
DA
Jeffrey
R B
RB
D000328:Adult; D000792:Angiography / Q000379:methods*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007479:Iopamidol; D016030:Kidney Transplantation; D008297:Male; D011300:Preoperative Care; D012077:Renal Artery / Q000002:abnormalities / Q000000981:diagnostic imaging*; D012082:Renal Veins / Q000002:abnormalities / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity; D014019:Tissue Donors; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014567:Urography / Q000379:methods
D007479:Iopamidol