Zhou Zibo, Yu Jinlu
Department of Neurosurgery, First Hospital of Jilin University, Changchun, China.
SAGE Open Med. 2024 Oct 29;12:20503121241274244. doi: 10.1177/20503121241274244. eCollection 2024.
Venous structures of the transverse-sigmoid sinus region have been insufficiently studied by magnetic resonance venography, especially in the healthy Han Chinese population.
Magnetic resonance venography data were reconstructed. The relevant parameters were recorded. A paired -test was used to compare the diameters of the inferior petrous sinus at the origin and termination. An unpaired -test, a chi-squared test or Fisher's exact test was used to compare other data.
One hundred healthy participants were included. The average age was 36.6 ± 17.1 years, and the ratio of males to females was 1:1. The development of the transverse-sigmoid sinus had a right-sided predominance in 51% of patients. Statistical analysis revealed significant differences ( < 0.05) in the lengths of bilateral TSs, the lengths of bilateral partial TSs from the torcular to lateral tentorial sinus, the diameters between bilateral TSs at the origin and the lateral tentorial sinus, the diameters between bilateral TS-sigmoid sinus junctions and sigmoid sinus terminations, and the inferior petrous sinus diameters at the origin and termination. Statistical analysis revealed that the right lateral tentorial sinus was more likely to originate from the TS ( < 0.05). Statistical analysis revealed no significant differences ( < 0.05) between transverse-sigmoid sinus development and inferior petrous sinus continuity or between transverse-sigmoid sinus development and inferior petrous sinus continuity and bilateral inferior petrous sinus continuity.
This study revealed that the right transverse-sigmoid sinus was predominantly larger in diameter, the torcular Herophili tended to deviate to the right, and the right lateral tentorial sinus tended to drain into the TS. The inferior petrous sinus at the origin was thicker than that at the termination, and the right inferior petrous sinus was thicker than the left inferior petrous sinus. transverse-sigmoid sinus development had no effect on inferior petrous sinus continuity, and there was no difference in inferior petrous sinus continuity between the left and right sides.
磁共振静脉血管造影对横窦-乙状窦区域静脉结构的研究尚不充分，尤其是在健康汉族人群中。
重建磁共振静脉血管造影数据，记录相关参数。采用配对t检验比较岩下窦起始部和终末部的直径。采用非配对t检验、卡方检验或Fisher精确检验比较其他数据。
纳入100名健康参与者。平均年龄为36.6±17.1岁，男女比例为1:1。51%的患者横窦-乙状窦发育右侧占优势。统计分析显示，双侧横窦长度、从窦汇至小脑幕侧窦的双侧部分横窦长度、双侧横窦起始部与小脑幕侧窦之间的直径、双侧横窦-乙状窦交界处与乙状窦终末部之间的直径以及岩下窦起始部和终末部的直径存在显著差异（P<0.05）。统计分析显示，右侧小脑幕侧窦更可能起源于横窦（P<0.05）。统计分析显示，横窦-乙状窦发育与岩下窦连续性之间或横窦-乙状窦发育与岩下窦连续性及双侧岩下窦连续性之间无显著差异（P<0.05）。
本研究显示，右侧横窦直径主要较大，窦汇倾向于向右偏移，右侧小脑幕侧窦倾向于汇入横窦。岩下窦起始部比终末部厚，右侧岩下窦比左侧岩下窦厚。横窦-乙状窦发育对岩下窦连续性无影响，左右侧岩下窦连续性无差异。
