Kurokawa Y, Yonemasu Y, Kano H, Sasaki T, Inaba K
Division of Neurosurgery, Obihiro Neurosurgical Hospital, W-13, S-1, Obihiro, Japan.
Comput Med Imaging Graph. 2000 Mar-Apr;24(2):115-9. doi: 10.1016/s0895-6111(00)00005-7.
Spontaneous vertebral artery dissection (VAD) has been recognized as being more common than was first thought, with the growing use of magnetic resonance imaging (MRI). However, simple MRI alone is not always satisfactory for making an accurate diagnosis. We experienced two cases of VAD in our clinic, in which three-dimensional computed tomographic angiography (3D-CTA) was performed. Our scanner has the capability of examining a slice of 1mm thick, 0.5mm reconstruction pitch, and a scan time of 1s/rotation. 3D-CTA clearly demonstrated the stenotic change concomitant with the surrounding thrombus and was thought to be useful for making an accurate diagnosis.
随着磁共振成像（MRI）的使用日益增多，自发性椎动脉夹层（VAD）已被认为比最初想象的更为常见。然而，单纯的MRI并不总是能令人满意地做出准确诊断。我们诊所遇到了两例VAD病例，均进行了三维计算机断层血管造影（3D-CTA）检查。我们的扫描仪能够进行1mm厚的切片检查，重建间距为0.5mm，扫描时间为1秒/旋转。3D-CTA清晰地显示了与周围血栓相关的狭窄变化，被认为有助于做出准确诊断。
