CT平扫对椎基底动脉扩张延长症的诊断价值  

The Value of CT Plain Scan in Diagnosing Vertebrobasilar Dolichoectasia

作　　者：李硕丰[1] 高志胜[2] 魏冬冬[1] 杨运俊[3] 张传索[1] 祝志[1] 李新春[1] 张士华[1] 

机构地区：[1]沧州市中心医院放射科,河北沧州061001 [2]沧州市中心医院心内科,河北沧州061001 [3]温州医学院附属第一医院放射科

出　　处：《实用放射学杂志》2011年第4期479-482,共4页Journal of Practical Radiology

摘　　要：目的 探讨CT平扫在椎基底动脉扩张延长症（VBD）诊断中的应用价值.方法 分析27例VBD患者的头部CT平扫表现,并与同期多层螺旋CT血管成像（MSCTA）检查对照.结果 4例（14.8%）基底动脉显示不清,19例（70.4%）显示基底动脉增粗、迂曲,4例（14.8%）表现为桥小脑角区或桥前池肿块,11例（47.8%）基底动脉壁可见钙化.以MSCTA为标准,CT平扫对VBD的敏感度为85.2%.27例中,发现后循环供血区腔隙性脑梗死10例（37.0%）,大面积脑梗死2例（7.4%）,左侧丘脑出血1例（3.7%）,蛛网膜下腔出血1例（3.7%）,脑积水4例（14.8%）.结论 CT平扫对VBD诊断具有较高的敏感性,可作为VBD的影像学筛查方法 之一.Objective To investigate the value of CT plain scan in diagnosing vertebrobasilar dolichoectasia（VBD）. Methods The features of CT plain scan in 27 patients with VBD were analyzed comparatively with that of multi-slice spiral CT angiography （MSC- TA） . Results On CT images, the basilar arteriae in 4 cases （ 14.8% ） were not clearly displayed,thickness and tortuous of the basi- lar arteriae were seen in 19 cases（70.4%） ,masses at the cerehellopontine angle area and the prepontine cistern were displayed in 4 cases （14.8%） ,Calcification in the basilar arterial wall was found in 11 cases （47.8 %）. In comparison with MSCTA , the sensitivity was 85.2% in diagnosing VBD wiht CT. Among all the 27 cases, there were 10 cases with lacunar infarction in posterior cerebral circulation area（ 37.0 %）, 2 cases with large area of infarction（ 7.4 %）, 1 case with left thalamic hemorrhage（ 3.7 %）, 1 case of subarachnoid hemorrhage（3.7%）and 4 cases with hydrocephalus（ 14.8%） . Conclusion CT plain scan is of high sensitivity in diagnosing VBD, it can he used as one of imageologic screening methods in diagnosing VBD.

关 键 词：脑 体层摄影术 X线计算机 椎基底动脉扩张延长症 

分 类 号：R743[医药卫生—神经病学与精神病学] R814.42[医药卫生—临床医学]