Fig. 6

A MR angiogram in a 45-year-old woman who presented with acute onset of tearing chest pain. Sagittal oblique image from a ECG gated T1-weighted post-gadolinium 3D acquisition (a) demonstrates a dissection flap (arrow) arising in the aortic arch distal to the origin of left subclavian artery consistent with a type B aortic dissection, with the dissection flap extending into the abdominal aorta. Corresponding 3D segmented volume rendered image of the thoracic aorta (b) from the thoracic MRA demonstrates the dissection flap (arrow). Coronal abdominal T1-weighted post gadolinium MRA image (c) demonstrates the distal extent of the dissection flap (arrow) into the common iliac arteries bilaterally, with a 3D segmented volume rendered image of the abdominal aorta (d) demonstrating the dissection flap in the abdominal aorta (arrow)