低剂量ct扫描技术结合图像域迭代重建算法（iris）在诊断泌尿系结石中的应用价值

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1、授予单位代码10089学号或申请号13591HebeiMedicalUniversity硕士学位论文在职科学学位低剂量CT扫描技术结合图像域迭代重建算法�IRIS)在诊断泌尿系结石中的应用价值学位申请人：张志坤导师：任庆云教授专业：影像医学与核医学二级学院：第一医院2015年3月河北医科大学学位论文使用授权及知识产权归属承诺本学位论文在导师(或指导小组)的指导下，由本人独立完成。本学位论文研究所获得的研究成果，其知识产权归河北医科大学所有。河北医科大学有权对本学位论文进行交流、公开和使用。凡发表与学位论文主要内容相关的论文,第一

2、署名为单位河北医科大学，试验材料、原始数据、申报的专利等知识产权均归河北医科大学所有。否则,承担相应法律责任。研究生签名导师签章彳二级学院领导盖章：河北医科大学研究生学位论文独创性声明本论文是在导师指导下进行的研究工作及取得的研究成果,除了文中特别加以标注和致谢等内容外，文中不包含其他人已经发表或撰写的研究成果,指导教师对此进行了审定。本论文由本人独立撰写，文责自负。研究生签名!/导师签章：年广月w曰目录中文摘要··························································

3、····················1英文摘要··············································································4英文缩写··············································································7研究论文低剂量CT扫描技术结合图像域迭代重建算法(IRIS)在诊断泌尿系结石中的应用价值前言··································

4、············································8材料与方法·····································································9结果·············································································11附图································································

5、·············14附表·············································································20讨论·············································································21结论·············································································27参考文献·····

6、··································································28综述低剂量CT在诊断泌尿系结石中的应用进展························32致谢···················································································42个人简历·····························································

7、················43中文摘要低剂量CT扫描技术结合图像域迭代重建算法(IRIS)在诊断泌尿系结石中的应用价值摘要目的：研究低剂量CT扫描技术与图像域迭代重建算法（IterativeReconstructioninImageSpace,IRIS）相结合在泌尿系结石诊断中的价值。方法：本研究共分两部分，第一部分为体模扫描，第二部为临床研究。第一部分：收集泌尿外科手术取出的离体泌尿系结石，选取其中临床上最常见的6种不同成分的结石：草酸钙结石、尿酸结石、磷酸钙结石、磷酸铵镁结石、胱氨酸结石、草酸钙与磷酸钙混合结石，每种结

8、石各2枚，共计12枚结石。将12枚结石分别植入6个离体的猪肾脏内，每个肾脏内植入同一种结石2块，最大径分别为5mm及2mm。将含有结石的猪肾脏放入一个装有生理盐水的圆柱形玻璃容器中进行CT扫描，扫描时管电压固定为130kV，mAs分别采用250、200、150、