Comparison of low-dose contrast computed tomography angiography findings with surgical results in living kidney donors

Authors : Hasan GÜNDOĞDU, Sibel AYDIN AKSU, Melih KARA

Pages : 161-166

Doi:10.32322/jhsm.1014834

View : 13 | Download : 9

Publication Date : 2022-01-17

Article Type : Research Paper

Abstract :Aim: To analyze the image quality and diagnostic performance of CT angiography using low dose insert ignore into journalissuearticles values(60 ml); contrast medium for living kidney donors and compare with surgical results. Material and Method: Angiographic findings of 81 renal donor candidates in 128-slice MDCT were evaluated by two independent radiologists in terms of renal artery number, early bifurcation, renal vein variations, pelvicalyceal system and ureter variations. Results were compared with intraoperative findings. The image quality, diagnostic performance and interobserver agreement of MDCT obtained with low dose contrast material were analyzed. Results: The mean age of the 81 living kidney donors included in the study was 49±12 insert ignore into journalissuearticles values(24-68); years. Left nephrectomy was performed in 71% insert ignore into journalissuearticles values(n=64); and right nephrectomy in 29% insert ignore into journalissuearticles values(n=17); of the donors. Intraoperative accessory arteries were detected in 22.2% insert ignore into journalissuearticles values(n:18); of the donors. The specificity, sensitivity, and accuracy for detecting accessory artery variation in MDCT were 100%, 88.9%, and 97.5%, respectively. Early bifurcation was observed in 21% insert ignore into journalissuearticles values(n=17); of the donors. Specificity, sensitivity and accuracy for early bifurcation detection were 98.4%, 94.1% and 97.5%, respectively. Renal vein variation was detected in 12.3% insert ignore into journalissuearticles values(n=10); of the donors. Specificity, sensitivity, and accuracy for renal vein variation detection were 100%. Variations of the pelvicalyceal system and ureter were observed in 3.7% insert ignore into journalissuearticles values(n=3); of the donors. The specificity, sensitivity, and accuracy for detecting pelvicalyceal system and ureteral variations were 100%. Interobserver agreement was excellent in detecting variations of accessory arteries, renal venous anomalies, pelvicalyceal system and ureters by MDCT insert ignore into journalissuearticles values(kappa: 1,000; p< 0.001);. It was higher in early bifurcation detection insert ignore into journalissuearticles values(kappa: 0.853; p< 0.001);. Conclusion: MDCT angiography with a lower dose of iodine contrast at 60 mL in kidney donors is sufficient to detect vascular anomalies and provide anatomical information. It is possible to reduce the contrast agent dose in CTA without affecting the preoperative evaluation.
Keywords : Multidetector computed tomography, Kidney, Transplantation, Contrast dose, Contrast dose reduction