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用手术显微镜观测了48侧旁正中穿质及其动脉.旁正中穿质是界于乳头体、灰结节、视束与大脑脚之间的三角形区域,穿入此区的动脉为旁正中穿动脉和乳头体前动脉.乳头体前动脉的出现率97.92%,主要起自后交通动脉(94.23%),其余起自颈内动脉和大脑后动脉的交通后段.乳头体前动脉双支的出现率为10.42%.有80.77%的乳头体前动脉发支至视束、大脑脚和旁正中穿质.详细观察了穿旁正中穿质的动脉外径、长度及行程.并结合临床有关问题进行了讨论.
Surgical microscope was used to observe the paracentesis and its arteries in the 48 sides.The paracentesis was the triangular region between the papillary body, gray nodules, optic tract and the cerebral peduncle.The arteries penetrating this area were midline Artery and nipple anterior artery.The incidence of anterior nipple anterior artery was 97.92%, mainly from the posterior communicating artery (94.23%), and the rest from the internal carotid artery and posterior cerebral artery traffic in the posterior segment of the nipple anterior artery With an incidence rate of 10.42% .Among 80.77% of the anterior nipple anterior branches of the nipple, the branches of the anterior branch of the nipple and the paracentesis were penetrated.We observed the diameter, length and stroke of the artery passing through the midline of the paracentesis.Combined with the related clinical problems Discussed.