Three-dimensional noninvasive contrast-enhanced electron beam tomography angiography of the kidneys: adjunctive use in medical and surgical management.
OBJECTIVE
To indicate the use of 3D electron beam computerized tomography angiography (EBCTA) for renal artery lesions, vascular variants that are crucial to detect before surgery, especially partial nephrectomy and extension of the intravascular tumor.


METHODS
Forty patients (30 men, 10 women, age range 13-82, mean age 54.2) underwent EBCT (GE-Imatron, C 150 ultrafast CT scanner) of the renal arteries. It is essential to review the axial images for all necessary information before the 3D technique is performed.


RESULTS
Maximum intensity projection (MIP) and volume rendering (VR) images were excellent in demonstrating stenosis of the renal arteries. Accessory and main renal arteries were easily depicted, and stenosis has been shown. In our study, among 40 renal angiography patients, 21 had stenosis of the renal arteries with different percentages. A total of 12 accessory renal arteries (five left, seven right) were detected. EBCT, with its 3D techniques, was found to be accurate and useful for renal vascular anatomy as a noninvasive test to delineate renal tumors and renal anatomy prior to nephron sparing surgery because it is known to conserve normal renal parenchyma adjacent to tumor.


CONCLUSIONS
EBCT, with its noninvasive VR and MIP techniques, is easy to apply and is functional and accurate for neoplasms, renal vascular anatomy and renal artery stenosis.
Tepe
Savas M
SM
TEST Cardiovascular Imaging, Nisantasi, Sezai Selek sok. No. 21 Istanbul, Turkey. stepe@superonline.com
Memisoglu
Esat
E
Kural
Ali Riza
AR
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000601:surgery; D007680:Kidney Neoplasms / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D012077:Renal Artery / Q000000981:diagnostic imaging*; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
D003287:Contrast Media