Distal Medium Vessel Occlusions Can Be Accurately and Rapidly Detected Using Maps.

Background And Purpose: Distal medium vessel occlusions (DMVOs) are increasingly considered for endovascular thrombectomy but are difficult to detect on computed tomography angiography (CTA). We aimed to determine whether time-to-maximum of tissue residue function (Tmax) maps, derived from CT perfusion, can be used as a triage screening tool to accurately and rapidly identify patients with DMVOs.

Methods: Consecutive code stroke patients who underwent multimodal CT were screened retrospectively.

Obtuse marginal coronary artery aneurysm on CT coronary angiogram.

Coronary artery aneurysms are rare. We present an unusual case of an isolated coronary artery aneurysm in the obtuse marginal artery detected on a computed tomographic coronary angiogram, which is unlikely to be significant for the patient. A Medline literature search did not find a similar case.