中华放射肿瘤学杂志
中華放射腫瘤學雜誌
중화방사종류학잡지
CHINESE JOURNAL OF RADIATION ONCOLOGY
2014年
5期
433-436
,共4页
体层摄影术,X线计算机,锥形束%自动匹配%头颈部肿瘤
體層攝影術,X線計算機,錐形束%自動匹配%頭頸部腫瘤
체층섭영술,X선계산궤,추형속%자동필배%두경부종류
Tomography,X-ray computed,cone beam%Automatically match%Head and neck neoplasms
目的 探讨医科达Synergy加速器ⅩⅥ系统图像自动匹配结果的准确性.方法 应用仿真模体ART头部进行仿真模拟计划设计后进行模体CBCT扫描,测量在不同匹配区域、不同匹配方法以及在不同方向上定量移床后扫描的匹配误差,获取数据进行分析.结果 在定量移床后模体扫描匹配误差与相应移床量数据基本吻合,x、y、z轴向总误差分别为(0.11±0.41)、(-0.04±2.6)、(0.28±0.74) mm.在不同匹配区域、不同匹配方法下进行自动匹配,各组数据差异较小.但对不同匹配区域、不同匹配方法上存在一些配对差异.结论 ⅩⅥ系统的自动匹配功能在头颈部应用上匹配精确,对偏移误差辨识准确可信度高.但对不同匹配区域、不同匹配方法上存在一定优劣对比,在实际运用中可根据实际情况择优应用.
目的 探討醫科達Synergy加速器ⅩⅥ繫統圖像自動匹配結果的準確性.方法 應用倣真模體ART頭部進行倣真模擬計劃設計後進行模體CBCT掃描,測量在不同匹配區域、不同匹配方法以及在不同方嚮上定量移床後掃描的匹配誤差,穫取數據進行分析.結果 在定量移床後模體掃描匹配誤差與相應移床量數據基本吻閤,x、y、z軸嚮總誤差分彆為(0.11±0.41)、(-0.04±2.6)、(0.28±0.74) mm.在不同匹配區域、不同匹配方法下進行自動匹配,各組數據差異較小.但對不同匹配區域、不同匹配方法上存在一些配對差異.結論 ⅩⅥ繫統的自動匹配功能在頭頸部應用上匹配精確,對偏移誤差辨識準確可信度高.但對不同匹配區域、不同匹配方法上存在一定優劣對比,在實際運用中可根據實際情況擇優應用.
목적 탐토의과체Synergy가속기ⅩⅥ계통도상자동필배결과적준학성.방법 응용방진모체ART두부진행방진모의계화설계후진행모체CBCT소묘,측량재불동필배구역、불동필배방법이급재불동방향상정량이상후소묘적필배오차,획취수거진행분석.결과 재정량이상후모체소묘필배오차여상응이상량수거기본문합,x、y、z축향총오차분별위(0.11±0.41)、(-0.04±2.6)、(0.28±0.74) mm.재불동필배구역、불동필배방법하진행자동필배,각조수거차이교소.단대불동필배구역、불동필배방법상존재일사배대차이.결론 ⅩⅥ계통적자동필배공능재두경부응용상필배정학,대편이오차변식준학가신도고.단대불동필배구역、불동필배방법상존재일정우렬대비,재실제운용중가근거실제정황택우응용.
Objective To investigate the accuracy and reliability of the image automatic matching using X-ray volumetric image (ⅩⅥ) system with the accelerator Elekta Synergy and to compare the matches with different methods and area.Methods A simulation plan using the head and neck phantom was designed and sent to ⅩⅥ system for CBCT scanning.During the scanning,the couch for certain distance was moved and the data of ⅩⅥ image automatic Matching in different matching methods and area was collected.Results The result of ⅩⅥ image automatic matching is consistent and correct to direction and distance which the couch had been moved (x:(0.11 ± 0.41) mm,y:(-0.04± 2.6) mm,z:(0.28 ± 0.74 mm)).There are not significant differences between the results that matching in different matching methods and different matching area.Conclusions The automatic image Matching of ⅩⅥ is accuracy and high reliability in recognition of offset error.But there are some significant differences on the automatic image Matching in different matching methods and different matching area.
