Modified Dynamic CT Myelography for Type 1 and 2 CSF Leaks: A Procedural Approach

Abstract

BACKGROUND AND PURPOSE: Dynamic CT myelography can identify spinal CSF leaks secondary to dural tears (type 1) and ruptured meningeal diverticula (type 2), but the radiation can be high secondary to multiple successive acquisitions. The purpose of this article is to discuss the procedural approach of a modified dynamic CT myelography technique with single scan acquisitions, reduced contrast volume, and condensed scan coverage and compare its radiation dose with that in traditional dynamic CT myelography.

Spinal Presentation of Spontaneous Intracranial Hypotension

“…따라서 조영제를 주입하면서 동시에 CT를 촬영하는 새로운 영상검사가 개발되었는데, 이것이 초고속 CT 척수조영술(ultrafast CT myelography)이다( Fig. 5 ) ( 18 20 21 22 ). 초고속 CT 척수조영술을 위해서 환자는 엉덩이 아래쪽에 높은 베개를 대고 엎드려 누워(prone) 머리가 엉덩이보다 낮은 위치에 있게 되는 Trendelenburg 자세를 취한다( Fig.…”