CAJ | 학술논문

目的为CT三维重建和导航下内镜视神经管减压手术提供解剖学依据.方法实验研究.对8例(16侧)成人湿性尸头视神经管及其重要毗邻结构进行解剖和测量,比较分析内镜下CT三维重建和导航定位的视神经管结构与实体解剖下视神经管结构的差异.采用配对t检验.结果内镜下视神经管隆起、颈内动脉隆起和视神经-颈内动脉隐窝出现率分别为62.5％、75％和75％,与实体解剖结果完全吻合.内镜下视神经管眶口内壁中点到鼻小柱基底前缘的距离为(71.19±4.00)mm、视神经管颅口内壁中点到鼻小柱基底前缘的距离为(79.69±3.65)mm、视神经管内侧壁长度为(10.00±1.71)mm、视神经管眶口直径为(4.46±0.56)mm、视神经管颅口直径为(4.71±0.42)mm,与实体解剖测量结果比较差异无统计学意义.结论 CT三维重建和导航技术可以准确定位视神经管,为安全有效的内镜视神经管减压手术提供保障.
목적 위CT삼유중건화도항하내경시신경관감압수술제공해부학의거.방법 실험연구.대8례(16측)성인습성시두시신경관급기중요비린결구진행해부화측량,비교분석내경하CT삼유중건화도항정위적시신경관결구여실체해부하시신경관결구적차이.채용배대t검험.결과 내경하시신경관륭기、경내동맥륭기화시신경-경내동맥은와출현솔분별위62.5％、75％화75％,여실체해부결과완전문합.내경하시신경관광구내벽중점도비소주기저전연적거리위(71.19±4.00)mm、시신경관로구내벽중점도비소주기저전연적거리위(79.69±3.65)mm、시신경관내측벽장도위(10.00±1.71)mm、시신경관광구직경위(4.46±0.56)mm、시신경관로구직경위(4.71±0.42)mm,여실체해부측량결과비교차이무통계학의의.결론 CT삼유중건화도항기술가이준학정위시신경관,위안전유효적내경시신경관감압수술제공보장.
Objective To recognize the endoscopic anatomy of the optic canal using a computer-assisted navigation system based on three-dimensional computed tomography (CT).Methods This was an experimental study.Eight adult damp cadaveric heads were studied bilaterally (n=16).We approached each optic canal through each nostril assisted by the CT-based navigation system to measure the optic canal and its related structures and compare it to the gross anatomy.Results In endoscopic anatomy,the distinguishing ratios for optic protuberance (OP),carotid protuberance (CP),and opticocarotid recess (OCR) were 62.5％,75％,and 75％,which were consistent with the gross anatomy.In the endoscopic anatomy,the distances from the midpoint of the medial wall of the optic canal orbital aperture and cranial aperture to the anterior nasal spine were 71.19±4.00 mm and 79.69±3.65 mm,respectively.The mean length of the medial wall of the optic canal was 10.00±1.71 mm.The mean diameters of the optic canal orbital aperture and cranial aperture were 4.46±0.56 mm and 4.71±0.42 mm,respectively.There was no statistically significant difference between CT endoscopic anatomy and gross anatomy (P＞0.05).Conclusion The computer-assisted navigation system based on the three-dimensional CT can map the optic canal accurately.With the help of the CT-based navigation system,a surgeon can perform the operation safely and effectively.