Multidetector Computed Tomography of Renal Vasculature. Anatomy and Normal Variants.

Abstract

Multi Detector Computed Tomography Angiography (MDCTA) provides a fast, non-invasive modality for the evaluation of the renal vascular pedicle. CTA can reliably and accurately depict the renal arteries and veins and approaches conventional angiography in the assessment of most vascular abnormalities. Knowledge of the variations in renal vascular anatomy is important before laparoscopic donor or partial nephrectomy and vascular reconstruction for renal artery stenosis or abdominal aortic aneurysm. Objective: To illustrate the diagnostic accuracy of MDCT for evaluation of renal vasculature anatomy. Design: An analytic, comparative study. Subjects: fifty six patients including 43 living renal donors, 13 hypertension and abdominal pain (27 men and 29 women, mean age 39.5 years) were examined from January 2008 to September 2010 in Radiology department, Farwania hospital Kuwait. Gold standard was the operative data, conventional angiography or DSA. Main outcome: The value of MDCT in assessment of renal vascular anomalies. Results: Renal vascular anatomical variants included multiple arteries (21.4%), multiple veins (7.1%), early arterial bifurcation (8.9%), late venous confluence (7.1%), circum-aortic renal veins (7.1%) and retro-aortic vein (3.6%). The sensitivity and specificity of multiple arterial anomalies were 91.7% and 97.7%, respectively. The sensitivity and specificity of multiple venous anomalies were 85.7% and 97.6%, respectively. Conclusion: MDCT is valuable for detection of renal vascular anomalies.

Analysis of Post Processing Technique Ct Renal Angiography for Identification of Variations of Renal Arteries in Kidney Donor Preparation: Literature Review

“…Platt et al reported a concordance rate of 87%-95% among 117 patients, and the second Del Pizzo et al found a concordance rate of 93% among 157 cases. The research conducted by Hassan et al, (2014) stated that the accuracy value of the CT multidetector for identifying renal artery arrhythmias was 97.8%, approaching the results of the study by Satomi et al; he stated that MDCT is 99% accurate in the evaluation of renal artery variation.…”

Paraaortic Lymphadenectomy in Gynecologic Oncology—Significance of Vessels Variations

“…The protocol of the study acquired CT data in all phases (arterial, venous and delayed). Authors observed 5.4% of false negative results in renal veins variations, whereas for arterial variations the result was 1.8%, respectively [121].…”