Additional value of venous phase added to aortic CT angiography in patients with aortic aneurysm
Yukichi Tanahashi1, Satoshi Goshima1, Hiroshi Kondo2
1Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.
Purpose:
To compare diagnostic performance of unenhanced and CTA images (Image set 1) to that of combined unenhanced, CTA, and venous-phase images (Image set 2) for incidentalomas in patients with aortic aneurysm.
Methods:
Preoperative CT Images of consecutive 240 patients were reviewed by two observers for incidentalomas. Diagnostic performance was assessed.
Results:
Sensitivity was higher in Image set 2 than Image set 1 in observer 1 and overall (P=0.03 and 0.00). AUCs for both observers were higher in Image set 2 than Image set 1 (P=0.03 and 0.01).
Conclusion:
Addition of venous-phase to CTA significantly improved diagnostic performance of incidentalomas.
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