CAJ | 학술논문

目的：评价食管癌术后放疗中不同位置胸腔胃的受照剂量。方法收集15例不同位置胸腔胃患者，其中左侧、右侧、纵隔胸腔胃患者各5例，利用治疗计划系统设计放疗计划，利用剂量体积直方图比较分析胸腔胃接受的平均剂量（Dmean ）、接受5 Gy、25 Gy、40 Gy、50 Gy 照射的靶体积百分比（V5、V25、V40、V50）。结果纵隔胸腔胃的 Dmean、V5、V25、V40、V50明显高于左侧、右侧（P <0.05）；左侧、右侧胸腔胃的 Dmean、V5、V25、V40、V50比较差异均无统计学意义（P 均>0.05）。结论纵隔胸腔胃较左侧、右侧受照剂量较大，放射性胃损伤发生风险可能高。
목적：평개식관암술후방료중불동위치흉강위적수조제량。방법수집15례불동위치흉강위환자，기중좌측、우측、종격흉강위환자각5례，이용치료계화계통설계방료계화，이용제량체적직방도비교분석흉강위접수적평균제량（Dmean ）、접수5 Gy、25 Gy、40 Gy、50 Gy 조사적파체적백분비（V5、V25、V40、V50）。결과종격흉강위적 Dmean、V5、V25、V40、V50명현고우좌측、우측（P <0.05）；좌측、우측흉강위적 Dmean、V5、V25、V40、V50비교차이균무통계학의의（P 균>0.05）。결론종격흉강위교좌측、우측수조제량교대，방사성위손상발생풍험가능고。
Objective To evaluate the dose of different position intrathoracic stomach in the postoperative radio-therapy of patients with esophageal carcinoma. Methods Fifteen patients with different position intrathoracic stom-ach(the left intrathoracic stomach 5 patients,the right intrathoracic stomach 5 patients and the mediastinal intratho-racic stomach 5 patients)were collected. The radiotherapy plan was did by using the radiotherapy planning system, and the dose volume histogram was used to compare the Dmean and V5 ,V25 ,V40 ,V50 of the intrathoracic stomach. Re-sults The Dmean and V5 ,V25 ,V40 ,V50 of the mediastinal intrathoracic stomach were significantly higher than those of the left intrathoracic stomach and the right intrathoracic stomach(P < 0. 05);there was no statistical difference in the Dmean and V5 ,V25 ,V40 ,V50 between the left intrathoracic stomach and the right intrathoracic stomach(P >0. 05). Conclusion The dose of the mediastinal intrathoracic stomach was higher than those of the left intrathorac-ic stomach and the right intrathoracic stomach,the radioactive stomach injury occurrence probability may be high.