A Method for Optimizing the Scaling Factor of Dual Echo Ultrashort Time Echo Imaging with Rescaled D

来源 :The 15th Asia-Oceania Congress of Medical Physics (AOCMP2015 | 被引量 : 0次 | 上传用户:liuyumingming
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Purpose UTE with rescaled digital subtraction(Dute-RS) could significantly improve the contrast of short-T2species as compared with the conventional Dute.[1,2] However,the scaling factor needs to be optimized inorder to obtain the best short-T2 contrast.Therefore,this paper proposes a method for optimizing thescaling factor.
其他文献
目的 分析膝关节周围骨巨细胞瘤(giant cell tumor,GCT)病理性骨折的临床和影像学特征。方法 回顾2000年3月至2015年4月之间中国骨巨细胞瘤协作组(giant cell tumor team of China,GTOC)包括天津医院、济南军区总医院、西京医院、浙医二院、南京军区总医院、内蒙二院和河北省三院7家骨肿瘤治疗中心收集的153例胫骨近端和股骨远端伴病理性骨折的原发GC
目的 骨巨细胞瘤(giant cell tumors of bone,GCT)是我国最常见的原发性骨肿瘤之一。但尚缺乏来自国家代表性样本的报道。本研究目的是应用多中心国家代表性GCT数据库,探讨中国人骨巨细胞瘤的分布特征,为进一步开展GCT的临床和基础研究奠定基础。方法 所有病例选自2002年~2014年期间在11家三甲医院(中国骨巨细胞瘤协作组)就医的骨巨细胞瘤患者。选择有明确诊断的各部位GCT
Methods:The records cervical cancer patients with squamous cell carcinoma(stage IB to IVA)underwent definitive radiotherapy in year 2009-2013 were retrospective studied.The patients received the total
Objectives:Postoperative cervical cancer patients with large volume of target area and the shape of thetarget is concave treated with IMRT technology is time consuming,VMAT technology can reducetreatm
会议
Purpose:To quantify the impact of off-center position on image quality of megavoltage CT in headand neck tumor patient and body tumor patient.
会议
Purpose:Parotid gland tumors account for 3%of head and neck tumors.Adjuvant radiotherapy is suggested for reducing the risk of high grade parotid tumors.The aim of the present study was to compare pat
Purpose:Respiratory gated radiation therapy(RGRT)gives accurate results when a patients breathing is stable and regular.Thus,the patient should be fully aware during respiratory pattern training befor
Time consuming of dynamic multileaf collimator(dMLC)quality assurance(QA)is an issue for clinical radiotherapy department.Considering the time consuming procedures in dynamic MLC QA,dedicated EPID bas
Purpose:The accuracy of deformable image registration(DIR)algorithms could have a significant impact on treatment planning,especially for adaptive radiotherapy.Various DIR algorithms have been develop
Aims:To compare flattening filter free(FFF)beams of tomotherapy(TOMO)and C-arm based flattening filter free beams in volumetric modulated arc therapy(VMAT)of cervical cancer after surgery through a re