心脏间隔及周围结构的薄层断面解剖学研究

Thin sectional anatomy of the cardiac septum and surrounding structure

目的 探讨心脏间隔的薄层断面解剖结构 ,为临床影像学及外科手术提供一定的参考。方法 经肉眼观察无器质性病变的正常成人心脏标本 16例 ,血管灌注 ,经 5 %的甲醛固定 ,明胶包埋后低温冰冻 1周 ,再于低温实验室中用数控铣床铣切 ,并逐层定焦数码照相。结果 共获取层厚 0 2mm的图片 160 8张 ,从心尖到心底 ,心脏中隔及其周围相关结构显示清晰 ,结缔组织及肌组织分界明显 ,并在Photoshop 6.0下测得心尖、卵圆窝、室间隔肌部、左、右心室及左、右纤维三角等的径线值。结论 图像清晰 ,显示结构细小 ,并可对一定结构进行测量 ,能为临床影像学和外科手术提供一定的参考。

Objective To study the sectional anatomy of the cardiac septum to provide the reference for clinical imageology and surgery. Methods Sixteen normal adult hearts without organic lesions were verified macroscopically. After vascular perfusion, the specimens were embedded with gel, fixed with 5% formalin, and cryopreserved for a week, and then were sectioned with the Digital Sectioner. Results A total of 1 608 slices (thickness: 0.2 mm) of the heart were obtained. Cardiac septum and the surrounding structures were shown clearly. The demarcation of connective and muscular tissues was clear. The diameters of the cardiac apex, fossa ovalis, brawny intraventricular septum, left ventricle, right ventricle, left and right fibrous trigone were measured with Photoshop6.0. Conclusion The clear images can display tiny structures that could be measured, which could provide anatomical references clinical imageology and surgery.