利用多阈值显示技术对脾门静脉系统进行三维CT血管造影。

Three-dimensional CT angiography of the splenic-portal venous system by using multiple threshold display.

作者信息

Shimizu T, Yoshikawa S, Uesugi Y, Yamamoto K, Matsui R, Sueyoshi K, Narabayashi I

机构信息

Department of Radiology, Osaka Medical College, Takatsuki, Japan.

出版信息

Comput Med Imaging Graph. 1997 Sep-Oct;21(5):277-82. doi: 10.1016/s0895-6111(97)00020-7.

DOI:10.1016/s0895-6111(97)00020-7

PMID:9475433

Abstract

We assessed the three-dimensional (3D) CT angiographic reconstruction of the splenic-portal venous system obtained by using multiple threshold display (MTD) in 40 patients with liver disease. In each patient, both shaded surface display(SSD) and MTD images were generated by using an Xtension with a Sun SPARCstation 20, and they were compared by two radiologists. MTD image quality was superior to that of SSD images, because MTD diminished longitudinal direction artifacts and the image depicted the small vessels clearly. Based on the above results, we consider MTD to be a useful method for 3D-CT angiography of the splenic-portal venous system.

摘要

我们对40例肝病患者使用多阈值显示（MTD）获得的脾门静脉系统三维（3D）CT血管造影重建进行了评估。对每例患者，使用配备Sun SPARCstation 20的扩展设备生成了表面阴影显示（SSD）图像和MTD图像，并由两名放射科医生进行比较。MTD图像质量优于SSD图像，因为MTD减少了纵向伪影，且该图像能清晰显示小血管。基于上述结果，我们认为MTD是脾门静脉系统3D-CT血管造影的一种有用方法。