Tomura N, Inugami A, Kanno I, Higano S, Fujita H, Tabata K, Shishido F, Uemura K, Abe T
Department of Radiiology and Nuclear Medicine, Research Institute for Brain and Blood Vessels-Akita, Japan.
J Comput Assist Tomogr. 1990 Jan-Feb;14(1):26-31. doi: 10.1097/00004728-199001000-00004.
A differentiation between embolic versus thrombotic infarction has been attempted on the basis of sequential CT of 32 patients fulfilling our clinical and angiographic criteria for embolic or thrombotic cerebral infarction of the middle cerebral arterial distribution. In the 20 patients of the embolic group, a large homogeneous low attenuation area was seen in every case. In 18 of these 20 patients, the low attenuation area extended from the deep brain to the cortex. In the 12 patients of the thrombotic group, 10 had an inhomogeneous low attenuation area that did not involve the cortices in 8 cases. The frequency of hemorrhagic transformation in the embolic group was higher than in the thrombotic group. Computed tomography showed discrete areas of increased attenuation corresponding to an angiographically occluded artery in 7 of the 20 patients in the embolic group. Sequential CT can assist in differentiating between embolic and thrombotic infarction.
我们根据连续CT对32例符合我们关于大脑中动脉分布区栓塞性或血栓性脑梗死临床及血管造影标准的患者进行了栓塞性梗死与血栓性梗死的鉴别。在栓塞组的20例患者中，每例均可见大片均匀低密度区。这20例患者中有18例，低密度区从深部脑实质延伸至皮质。在血栓组的12例患者中，10例有不均匀低密度区，其中8例未累及皮质。栓塞组出血转化的发生率高于血栓组。在栓塞组的20例患者中，有7例CT显示与血管造影证实闭塞的动脉相对应的散在高密度区。连续CT有助于鉴别栓塞性梗死与血栓性梗死。
