CT angiography versus intra - arteiral digital subtraction angiography in eyaluation of potential living kidney donors

ABSTRACT

The present study included 50 living kidney donors [22 males and 28 females] with their age ranged from 21 years to 55 years. The objective of this work is to study the renovascular anatomy of the potential living kidney donors by CT angiography and to compare CT angiography and IA-DSA in evaluation of the number and location of the donor's renal arteries and in identification of major renal vascular abnormalities that may preclude safe renal donation. Single renal arteries were detected by CT angiography in 34 donors and double renal arteries were diagnosed in 11 donors. Single renal arteries were diagnosed in 35 donors and double renal arteries in 10 donors by IA-DS aortography. Single renal arteries were detected in 33 donors and double renal arteries in 12 donors by IA-selective renal angiography, At nephrectomy, 32 donors had single renal arteries, 12 donors had double renal arteries and one donor had triple renal arteries. 5 donors were excluded from donation, 3 donors had viral hepatitis and 2 donors had diabetes mellitus. CT angiography had similar sensitivity [100%] and better specificity [81.2%] than IA-DS aortography [76.4%]. However, in equivocal and indeterminate cases selective renal angiography is recommended for better assessment, accuracy 95.5% versus 93.3%-for CT angiography