Detection of Accessory Renal Arteries with Virtual Vascular Endoscopy of the Aorta

Journal Article · Fri Jan 15 00:00:00 EST 1999 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S002709900320· OSTI ID:21080348

Neri, Emanuele; Caramella, Davide; Bisogni, Cristina; Laiolo, Edoardo; Trincavelli, Francesco; Viviani, Adriano; Vignali, Claudio; Cioni, Roberto; Bartolozzi, Carlo ^[1]

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1. Diagnostic and Interventional Radiology, Department of Oncology, University of Pisa, Via Roma 67, I-56100 Pisa (Italy)

Purpose: To evaluate the diagnostic accuracy of virtual vascular endoscopy (VVE) in the detection of accessory renal arteries. Methods: We retrospectively reviewed the CT angiography data sets of 67 patients (29 male and 38 female; age range 17-72 years, mean age 53 years) imaged for the study of the renal arteries, and affected by renovascular hypertension. All patients also had intraarterial digital subtraction angiography (DSA). CT angiography data sets were processed to obtain maximum intensity projection (MIP) and surface-rendered VVE of the aorta. Axial images, MIP, and VVE were evaluated separately and in combination in the detection of accessory renal arteries. Their results in terms of sensitivity and specificity were then compared with DSA. Results: Axial images had a sensitivity of 88% and specificity of 94% for accessory renal artery detection, MIP had a sensitivity of 88% and specificity of 98%, and VVE had a sensitivity of 63% and a specificity of 88% (p < 0.05 vs DSA), but these increased to 88% and 98% respectively if endoscopic views were integrated with the other display techniques. Conclusion: VVE based on surface rendering does not add substantial benefits to CTY angiography; by contrast MIP is the most accurate display technique for the detection of accessory renal arteries.

• OSTI ID: 21080348
• Journal Information: Cardiovascular and Interventional Radiology, Vol. 22, Issue 1; Other Information: DOI: 10.1007/s002709900320; Copyright (c) 1999 Springer-Verlag New York Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 0174-1551
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
AORTA
BIOMEDICAL RADIOGRAPHY
IMAGES
KIDNEYS
PATIENTS
SENSITIVITY
SPECIFICITY
VASCULAR DISEASES