Atilla S, Akpek S, Uslu S, Ilgit E T, Işik S
Gazi University School of Medicine, Department of Diagnostic Radiology, Ankara, Turkey.
Eur J Radiol. 1995 May;20(1):52-6. doi: 10.1016/0720-048x(95)00619-2.
Variations of the vascular structures related with the temporal bone may cause important problems in diagnosis, treatment planning and surgery. High resolution computed tomography (CT) scans of 700 temporal bones of 350 patients were retrospectively examined for the incidence of dehiscent jugular bulb, high jugular bulb, diverticulum of jugular bulb, anteriorly located sigmoid sinus and dehiscent internal carotid artery. Dehiscent jugular bulb was seen in 27 (3.9%), high jugular bulb was seen in 142 (20.3%), jugular bulb diverticulum was seen in 55 cases (7.9%). The average distance between external acoustic canal and sigmoid sinus was found to be 13.3 mm and in 12.4% of the cases this distance was < 10 mm. Of 700 temporal bones, 10 (1.4%) showed dehiscent carotid canal. To aid diagnosis, treatment planning and surgery, CT scanning is currently a very reliable tool in determining these conditions. Special attention should be paid to the position of the vascular structures in the preoperative temporal bone CT scans.
与颞骨相关的血管结构变异可能在诊断、治疗规划和手术中引发重要问题。回顾性检查了350例患者700侧颞骨的高分辨率计算机断层扫描（CT），以确定颈静脉球裂孔、高位颈静脉球、颈静脉球憩室、乙状窦前置和颈动脉管裂孔的发生率。发现颈静脉球裂孔27例（3.9%），高位颈静脉球142例（20.3%），颈静脉球憩室55例（7.9%）。外耳道与乙状窦之间的平均距离为13.3mm，12.4%的病例此距离<10mm。700侧颞骨中，10例（1.4%）显示颈动脉管裂孔。为辅助诊断、治疗规划和手术，CT扫描目前是确定这些情况的非常可靠的工具。术前颞骨CT扫描时应特别注意血管结构的位置。
