Fig. 2From: Management of a spontaneous supra-aortic arterial dissection: a case reportSagittal computed tomographic angiography of the chest and neck at initial presentation (a) and at 3-month follow-up (b). Imaging reveals slightly increased diameter of the innominate artery after takeoff from the aortic arch compared to diameter at initial presentation. True and false lumens are separated by intimal flap (red arrows, a and b).Back to article page