토모테라피의 자동영상정합 분석
- Alternative Title
- Analysis of Automatic Rigid Image-Registration on Tomotherapy
- Abstract
- The purpose of this study was to analyze translational and rotational adjustments during automatic rigid image-registration by using different control parameters for a total of five groups on TomoTherapy (Accuray Inc, Sunnyvale, CA, USA). We selected a total of 50 patients and classified them in five groups (brain, head-and-neck, lung, abdomen and pelvic) and used a total of 500 megavoltage computed tomography (MVCT) image sets for the analysis. From this we calculated the overall mean value(M) for systematic and random errors after applying the different control parameters. After randomization of the patients into the five groups, we found that the overall mean value varied according to three techniques and resolutions. The deviation for the lung, abdomen and pelvic groups was approximately greater than the deviation for the brain and head-and-neck groups in all adjustments. Overall, using a full-image" produces smaller deviations in the rotational adjustments. We found that rotational adjustment has deviations with distinctly different control parameters. We concluded that using a combination of the "full-image" technique and "standard" resolution will be helpful in assisting with patients' repositioning and in correcting for set-up errors prior to radiotherapy on TomoTherapy."
- All Author(s)
- 김영록
; 조광환
; 정재홍
; 정주영
; 임광채
; 김용호
; 문성권
; 배선현
; 민철기
; 김은석
; 여승구
; 서태석
; 최보영
; 민정환
; 안재억
- Issued Date
- 2014
- Type
- Article
- Keyword
- Tomotherapy; Image guided radiation therapy; Megavoltage computed tomography; Image-registration
- Publisher
- 대한방사선과학회
- ISSN
- 1226-2854
; 2288-3509
- Citation Title
- 방사선기술과학
- Citation Volume
- 37
- Citation Number
- 1
- Citation Start Page
- 37
- Citation End Page
- 47
- Language(ISO)
- kor
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/574
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