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직장암 환자의 골반 방사선치료에서 벨리보드 하위 경계 위치 변화의 영향

Other Titles
 The Efficacy of the Change in Belly Board Aperture Location by the Addition of Bladder Compression Device for Radiotherapy of Rectal Cancer 
 윤홍인  ;  정윤선  ;  김주호  ;  박효국  ;  이상규  ;  김영석  ;  최윤선  ;  김미선  ;  이하윤  ;  장지석  ;  차혜정  ;  성진실  ;  금기창  ;  금웅섭 
 Journal of the Korean Society for Therapeutic Radiology and Oncology, Vol.28(4) : 231-237, 2010 
Journal Title
Journal of the Korean Society for Therapeutic Radiology and Oncology(대한방사선종양학회지)
Issue Date
Rectal cancer ; Belly board ; Bladder compression device ; Small bowel ; Bladder ; Irradiated volume
Purpose: We investigated the effect of location changes in the inferior border of the belly board (BB) aperture by adding a bladder compression device (BCD). Materials and Methods: We respectively reviewed data from 10 rectal cancer patients with a median age 64 years (range, 45∼75) and who underwent computed tomography (CT) simulation with the use of BB to receive pelvic radiotherapy between May and September 2010. A CT simulation was again performed with the addition of BCD since small bowel (SB) within the irradiated volume limited boost irradiation of 5.4 Gy using the cone down technique after 45 Gy. The addition of BCD made the inferior border of BB move from symphysis pubis to the lumbosacral junction (LSJ). Results: Following the addition of BCD, the irradiated volumes of SB and the abdominopelvic cavity (APC) significantly decreased (174.3±89.5 mL vs. 373.3±145.0 mL, p=0.001, 1282.6±218.7 mL vs. 1571.9±158 mL, p<0.001, respectively). Bladder volume within the treated volume increased with BCD (222.9±117.9 mL vs. 153.7±95.5 mL, p<0.001). The ratio of irradiated bladder volume to APC volume with BCD (33.5±14.7%) increased considerably compared to patients without a BCD (27.5±13.1%) (p<0.001), and the ratio of irradiated SB to APC volume decreased significantly with BCD (13.9±7.6% vs. 24.2±10.2%, p<0.001). The ratios of the irradiated SB volumeand irradiated bladder volume to APC volume negatively correlated (p=0.001). Conclusion: This study demonstrated that the addition of BCD, which made the inferior border of BB move up to the LSJ, increased the ratio of the bladder to APC volume and as a result, decreased the irradiated volume of SB
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1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Keum, Ki Chang(금기창) ORCID logo https://orcid.org/0000-0003-4123-7998
Koom, Woong Sub(금웅섭) ORCID logo https://orcid.org/0000-0002-9435-7750
Seong, Jin Sil(성진실) ORCID logo https://orcid.org/0000-0003-1794-5951
Chung, Yoon Sun(정윤선)
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