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目的通过容积CT数字减影血管造影(volume computed tomographic digital subtraction angiography,VCTDSA)研究上矢状窦及其属支静脉的解剖形态及临床意义。方法分析2007年2月至2008年12月在我院行头部或头颈部联合VCTDSA、符合上矢状窦及其属支静脉研究纳入标准的102例患者资料。观测上矢状窦起始点及输出端形态;上矢状窦的形态、大小;属支静脉的数目;上矢状窦与其他静脉窦间的吻合。结果上矢状窦起点为盲端占40.2%,59.8%由静脉汇合形成;输出端形态以直窦分支,上矢状窦偏侧型最多(48.0%、49/102),其次是双分支型(36.3%、37/102),而简单型只占12.7%(13/102);上矢状窦截面形态以三角形为主,占79.4%(81/102);显示Trolard吻合106个,Labbe吻合155个,上矢状窦通过大脑镰静脉与下矢状窦、直窦的吻合25个。结论VCTDSA是清晰显示上矢状窦及其属支静脉解剖形态的有效方法,从不同角度完整、充分显示血管的形态、分布,有助于临床上矢状窦病变的诊断与手术治疗。
Objective To investigate the anatomic features and clinical significance of the superior sagittal sinus and its collateral vessels by volume computed tomographic digital subtraction angiography (VCTDSA). Methods From February 2007 to December 2008 in our hospital head or neck joint VCTDSA, in line with the superior sagittal sinus and its femoral vein study included 102 patients data. Observed on the sagittal sinus starting point and the output form; shape and size of the superior sagittal sinus; is the number of branches of the vein; superior sagittal sinus anastomosis with other sinus. Results The origin of the superior sagittal sinus was 40.2% at the blind end and 59.8% at the venous confluence. The output of the superior sagittal sinus branch was straight sinusoidal (48.0%, 49/102), followed by bifurcated (36.3%, 37/102), while the simple type only accounted for 12.7% (13/102). The sagittal section of the superior sagittal sinus was mainly of the triangle, accounting for 79.4% (81/102) 155, the superior sagittal sinus through the falx vein and inferior sagittal sinus, straight anastomosis 25. Conclusions VCTDSA is an effective method to clearly show the anatomic morphology of the superior sagittal sinus and its collateral veins. From different perspectives, VCTDSA can fully display the morphology and distribution of blood vessels and contribute to the diagnosis and surgical treatment of clinical sagittal sinus lesions.