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目的 :为冠状动脉的多平面 TEE显像提供连续的薄层断面解剖学基础 ,确定近端冠状动脉在多平面 TEE中的最佳显示方位和层面。方法 :用冰冻薄层断面技术将 2 4个保留食道的心脏标本制作成与人体横断面成 0°、 45°、 90°、 1 35°四个方位的薄层连续解剖断面 ,观察和分析近端冠状动脉的走行 ;并与 30个健康成人的心脏多平面 TEE进行对照研究 ,确定 TEE显示近端冠状动脉的最佳方位和层面。结果 :0°、 45°方位的心脏薄层断面和多平面 TEE切面能清晰地显示左右冠状动脉主干和左冠状动脉分叉 ,90°、1 35°方位能显示左右冠状动脉的起始部。结论 :保留食道心脏薄层断面解剖学研究能够为冠状动脉的多平面 TEE显像提供解剖学基础
OBJECTIVE: To provide continuous thin-section anatomical basis for multi-planar TEE imaging of coronary arteries and to determine the optimal orientation and level of proximal coronary arteries in multi-planar TEE imaging. Methods: 24 frozen esophageal heart specimens were made into thin continuous anatomical sections of 0 °, 45 °, 90 ° and 1 35 ° with the cross section of the human body by using the frozen slice section technique. End coronary artery; and 30 healthy adults with multiplane TEE heart control study to determine the best proximal TEE show the location and orientation of the coronary arteries. Results: The slice of the heart and multiplanar TEE sections at 0 ° and 45 ° can clearly show the bifurcation between the left and right coronary arteries and the left coronary artery. The 90 ° and 135 ° azimuths can show the beginning of the left and right coronary arteries. CONCLUSIONS: The preservation of the thin sections of esophageal heart anatomy provides anatomic basis for multiplanar TEE imaging of coronary arteries