PMID: 20627048Jul 16, 2010Paper

A three-dimensional quantitative measurement related to sigmoid sinus by using multi-slices spiral CT

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
Wei-wei XingJing-cheng Gu

Abstract

To provide a valuable imaging anatomic method for operation of the posterior transpetrosal approach and accurate positioning among relative structures in order to reduce the incidence of surgical complications. The clinical information of 119 adult cases (238 sides) was analyzed. All the cases underwent 16 layer helix CT scanning and three-dimensional image reconstruction of skull base without a skull base disease. Axial and coronal images were reconstructed using multiplanar reconstruction technique of ADW 4.2 workstation, and the anatomic objective structure were displayed by rotating imaging slices. The data were analyzed in statistically and compared with the published cadaver data. Quantitative measurement of anatomic structure was shown as below: The distance of width of sigmoid sinus was (11.14 + or - 2.13) mm, the distance of depth of sigmoid sinus was (6.04 + or - 1.67) mm; the distance from the lateral wall of sigmoid sinus to the surface of mastoid process was (9.74 + or - 2.95) mm; the distance from the anterior wall of sigmoid sinus to the posterior wall of external auditory meatus was (12.98 + or - 2.71) mm; the distance from the most posterior portion of the posterior semicircular canal to the anterior wall of si...Continue Reading

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