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- W3030427461 abstract "Objective To study the effect of labeling esophageal carcinoma with sliver clips on two sides by esophagoscopy in mapping the target for conformal radiotherapy (CRT). Methods Eighty patients with esophageal carcinoma (28 patients in early stage, 52 patients in late stage), who were eligible for CRT, were collected and the tumor volume was detected by three methods: CT (A),CT combined with X-ray (B) and CT combined with sliver clip labeling by esophagoscopy (C). The differences of the tumor length and position in head-foot site (Y-axsis) among three methods were compared. Results The comparison of average length of tumor in early stage patients showed significant difference among three methods in all types of tumor (F= 4.07 ～ 7.43, P＜0.05 ) except papillary type (F= 1. 71, P＞0. 05). There was difference (ranged from 0. 5 cm to 2. 0 cm) in detection of position in head-foot site between A and B methods and C method. Significant difference was found in determining the displacement on head-foot site among three methods (F = 34. 36 ～193.50,P ＜0.01). The comparison of average length of tumor in middle or terminal stage patients showed significant difference among three methods in all types of tumor (F=4. 07～30.10 ,P＜0.05) except mushroom type (F = 2.44, P＞ 0. 05). Significant difference was found in determining the displacement on head-foot site among three methods (F= 12.00 ～ 21.16, P ＜ 0. 01 ). Conclusion These findings indicate that C method is more sensitive and correct in mapping the target for CRT in comparison with other two methods.Key words: Esophageal neoplasms; Tomography, X-ray computed; Radiotherapy planning, computer-assisted" @default.
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- W3030427461 date "2011-04-15" @default.
- W3030427461 modified "2023-09-24" @default.
- W3030427461 title "Effect of labeling esophageal carcinoma with sliver clips by esophagoscopy in mapping the target for radiotherapy" @default.
- W3030427461 doi "https://doi.org/10.3760/cma.j.issn.0254-1432.2011.04.003" @default.
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