Anatomy of the junction of the inferior petrosal sinus and the internal jugular vein.
Anatomy of the junction of the inferior petrosal sinus and the internal jugular vein.
复制标题
岩下窦与颈内静脉交界处的解剖。
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
R. Chang
中科院分区：
文献类型：
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作者：
Donald L. Miller;J. Doppman;R. Chang
目的
PURPOSE
To evaluate the anatomy of the junction of the inferior petrosal sinus and the internal jugular vein.
METHODS
Using a previously described classification system, we prospectively classified venous anatomy bilaterally in 135 of 136 persons consecutively undergoing inferior petrosal sinus sampling.
RESULTS
Type IV anatomy, with no anastomosis between the inferior petrosal sinus and the internal jugular vein, was significantly less frequent in our series than in a previous series (1 versus 7%; P < .001). Venous anatomy did not differ significantly between the left and the right junctions or between men and women. Venous anatomy was symmetric in only 65% of subjects (86 of 133). We describe an uncommon variant anatomy, incomplete type IV, found in 4.5% of our subjects (six of 133), that may cause incorrect results of petrosal sinus sampling.
CONCLUSION
Bilateral sampling of pituitary venous effluent can be accomplished by the methods described, despite the presence of either incomplete or true type IV venous anatomy. Bilateral petrosal sinus sampling is anatomically possible in 99% of persons.