[脊髓磁共振成像上的空洞样伪影]

[Syrinx-like artifact on MR images of the spinal cord].

作者信息

Hashimoto M, Shingyouchi H, Seino Y, Miyauchi K, Shindo M, Murakami Y, Kato T, Segawa Y

出版信息

Rinsho Hoshasen. 1989 Jun;34(6):697-701.

Abstract

We evaluated the syrinx like artifact on midline sagittal MR images of cervical spine. This artifact appeared as linear regions of low intensity along the length of the spinal cord. This artifact was frequently seen. And, when it appear as a single midline band, it mimics pathological conditions such as a syrinx. We found that this artifact eliminated by increasing the number of phase encoding steps, or decreasing the field of view. These method were useful for differentiation of artifact from syrinx.

摘要

我们评估了颈椎矢状位中线磁共振成像上的类空洞样伪影。该伪影表现为沿脊髓走行的低强度线性区域。这种伪影很常见。而且，当它表现为单个中线条带时，会模仿诸如空洞之类的病理状况。我们发现，通过增加相位编码步数或减小视野可以消除这种伪影。这些方法有助于将伪影与空洞区分开来。