BACKGROUND AND AIM: Intensity-modulated radiotherapy (IMRT) techniques can reduce the irradiated small bowel volume in rectal cancer patients, but combined use of IMRT and a belly board is yet to be reported on for rectal cancer patients. The aim of this study was to determine whether additional use of a belly board reduced the irradiated small bowel volume observed using IMRT alone in rectal cancer patients. MATERIALS AND METHODS: Twenty patients scheduled to receive preoperative radiotherapy for rectal cancer underwent two series of CT scans, with and without a belly board. IMRT planning was performed using 6-MV photon beams and seven equispaced fields. The bladder, small bowel, and planning target volume (PTV) were analyzed for doses between 10% and 100% of the prescribed dose at 10% intervals. Data were analyzed using Wilcoxon signed rank tests. RESULTS: There were no significant differences between patients undergoing IMRT with a belly board and those without a belly board in terms of total small bowel volumes, bladder, and PTV (p=0.571, p=0.841, and p=0.870, respectively). Statistical analysis showed that the irradiated small bowel volume with a belly board was smaller than that without a belly board (p<0.05 at 20-100% dose levels), with the mean relative reduction in the irradiated small bowel volume being 37.8+/-32.8%. CONCLUSION: IMRT with a belly board is more effective than IMRT alone in reducing the irradiated small bowel volume. These findings suggest that the use of a belly board with IMRT may reduce small bowel complications in preoperative radiotherapy.
BACKGROUND AND AIM: Intensity-modulated radiotherapy (IMRT) techniques can reduce the irradiated small bowel volume in rectal cancerpatients, but combined use of IMRT and a belly board is yet to be reported on for rectal cancerpatients. The aim of this study was to determine whether additional use of a belly board reduced the irradiated small bowel volume observed using IMRT alone in rectal cancerpatients. MATERIALS AND METHODS: Twenty patients scheduled to receive preoperative radiotherapy for rectal cancer underwent two series of CT scans, with and without a belly board. IMRT planning was performed using 6-MV photon beams and seven equispaced fields. The bladder, small bowel, and planning target volume (PTV) were analyzed for doses between 10% and 100% of the prescribed dose at 10% intervals. Data were analyzed using Wilcoxon signed rank tests. RESULTS: There were no significant differences between patients undergoing IMRT with a belly board and those without a belly board in terms of total small bowel volumes, bladder, and PTV (p=0.571, p=0.841, and p=0.870, respectively). Statistical analysis showed that the irradiated small bowel volume with a belly board was smaller than that without a belly board (p<0.05 at 20-100% dose levels), with the mean relative reduction in the irradiated small bowel volume being 37.8+/-32.8%. CONCLUSION: IMRT with a belly board is more effective than IMRT alone in reducing the irradiated small bowel volume. These findings suggest that the use of a belly board with IMRT may reduce small bowel complications in preoperative radiotherapy.
Authors: M Olofsen-van Acht; H van den Berg; S Quint; H de Boer; M Seven; J van Sömsen de Koste; C Creutzberg; A Visser Journal: Radiother Oncol Date: 2001-04 Impact factor: 6.280
Authors: M J Gallagher; H D Brereton; R A Rostock; J M Zero; D A Zekoski; L F Poyss; M P Richter; M M Kligerman Journal: Int J Radiat Oncol Biol Phys Date: 1986-09 Impact factor: 7.038
Authors: Sergiu Scobioala; Christopher Kittel; Philipp Niermann; Heidi Wolters; Katharina Helene Susek; Uwe Haverkamp; Hans Theodor Eich Journal: Strahlenther Onkol Date: 2018-05-31 Impact factor: 3.621
Authors: Arti Parekh; Minh Tam Truong; Itai Pashtan; Muhammad M Qureshi; Neil E Martin; Omer Nawaz; Sandra Cerda; John Willins; Kevan L Hartshorn; Lisa A Kachnic Journal: Gastrointest Cancer Res Date: 2013-09
Authors: Robert J Myerson; Michael C Garofalo; Issam El Naqa; Ross A Abrams; Aditya Apte; Walter R Bosch; Prajnan Das; Leonard L Gunderson; Theodore S Hong; J J John Kim; Christopher G Willett; Lisa A Kachnic Journal: Int J Radiat Oncol Biol Phys Date: 2008-12-29 Impact factor: 7.038