1997年12月2日 · We have shown that atherosclerotic plaques ≥4 mm in thickness in the ascending aorta and proximal arch detected by transesophageal echocardiography are a risk factor for ischemic stroke.

We have applied thoracic aorta CPR using the MDCT angiographic data in semiautomatic volume measurement of low attenuation (0~29 HU) in atherosclerotic plaque, and we have found an increase in LAPV in the arch which are correlated with AAA, severe CAD, and long-term hypertension, which causes further thickness of aortic wall with an apparent ...

2019年4月22日 · Each low-attenuation (<30 Hounsfield units [HU]) plaque volume (LPV) and total uncalcified plaque volume ([TUPV] ≤150 HU) were semiautomatically measured on each aortic arch and internal carotid artery (ICA) curved planar reformations (CPR), using MDCT angiographic data.

We evaluated the presence of aortic plaques in the ascending aorta, aortic arch, and thoracic descending aorta using CTCA-WVS. Large aortic plaques were defined as plaques of at least 4 mm in thickness. A complex aortic plaque was defined as a plaque with ulceration or protrusion.

Attenuation of ultrasound [12] or ultrasound backscatter [13] by human aortas in autopsy specimens has been related to pathologic features of atherosclerotic plaques. At present, there are no data on the pathologic correlates of aortic lesions imaged in vivo with TEE.

In addition, EAUS has been useful in strategically guiding aortic cannulation and proximal vessel anastomoses so as to avoid regions of the aortic arch subtended by dense plaque. The efficacy of EAUS in reducing stroke rates has been examined by a number of investigators before the advent of the OPCAB technique.

Aortic and Internal Carotid Atherosclerosis in Patients with Carotid Stenosis: Semiautomatic Volumetric Analysis of Low‐Attenuation Plaque on Curved Planar Reformations Using MDCT Angiographic Data

2009年4月20日 · The presence of large plaques in the proximal segment of the aorta is an established risk factor for ischemic stroke, linked to a 2.5-fold to 9-fold increase in stroke risk in case-control studies, 4 with an even greater risk in cases of complex plaque morphology, 10 and with a >4-fold increase in stroke risk in prospective studies. 5,7 In ...

In this study, there were two patients with high grade complex aortic arch plaque with floating thrombus that causes thromboembolic large left cerebral hemisphere ischemic stroke. In first case, risks for stroke were DM, HTN and COVID-associated coagulopathy while in the second case, risk factors for stroke were HTN and mildly positive lupus ...

1997年12月2日 · The reason noncalcified plaques ≥4 mm in the ascending aorta and proximal arch were associated with a very high risk of vascular events at follow-up (incidence rate, 63.4 per 100 person-years) remains to be elucidated. Our results suggest that vulnerable aortic arch plaques are rather those ≥4 mm thick, which are noncalcified and hypoechoic.