成人CT血管成像横窦体表定位研究及其意义

Abstract

Abstract:

Objective　To evaluate the anatomical relationship of transverse-sigmoid sinuses and surgical landmarks for clinic surgery by computed tomographic angiography with 64-row CT, and to determine the reliability of the superior nuchal line (SNL) and the line drawn from the zygoma root to the inion for the posterolateral approaches as the surgical landmark.　Methods　The images of transverse-sigmoid sinuses from 100 cases were collected adopting CT angiography and further three-dimensional reconstructed to determine the location of the transverse-sigmoid sinuses.　Results　The main asterion located at the transverse-sigmoid sinuses transition (TSST), and closed to transverse sinuses. Regarding its position from the TSST, it was at the transition point for most cases (81%), at the lower part of transition about 15%, and at the upper part about 4%. It was disaccord to the course of SNL and the line drawn from the zygoma root to the inion, furthermore, their relationship with the transverse sinus was varied. Transverse sinus and SNL was inconsistent. The line from the zygoma root to the inion can be used as a sign of proximal transverse sinus, but with their outward migration, the line passed below the transverse sinus and gradually away from it.　Conclusions　SNL is different from the line from the zygoma root to the inion, and cannot be taken as a strictly reliable landmark for locating transverse sinuses. Subtraction CT angiography is a reliable method in the localization of the transverse-sigmoid sinuses for surgical craniotomies.

Key words: Transverse sinus, Superior nuchal line, Anatomy, Computed tomographic angiography(CTA)

CLC Number:

R322
R814.42

SHENG 　Bo, LV Fu-Rong, XIAO Zhi-Bo, OU Yang-Yu, LV Fa-Jin, DENG Jin-Mu, LIU 　Nan. Surface location of the transverse sinus by computed tomographic angiography and its clinic significance[J]. Chinese Journal Of Clinical Anatomy, 2011, 29(2): 184-187.

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Surface location of the transverse sinus by computed tomographic angiography and its clinic significance

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