Use of Multidetector-row CT with Multiplanar Reconstruction to Diagnose Isolated Dissection of the Superior Mesenteric Artery

Dissection of the superior mesenteric artery not associated with aortic dissection is rare. We describe our experience of multidetector-row computed tomography with multiplanar reconstruction in two cases. Axial and oblique sagittal reconstructed images clearly illustrate the intimal flap in the proximal superior mesenteric artery. In both cases, the involved portions of the arteries are concomitantly enlarged in diameter. These appearances suggest that this imaging technique is useful for the diagnosis of isolated dissection of the superior mesenteric artery.