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机构地区:[1]黑龙江省医院CT室,黑龙江哈尔滨150036
出 处:《中国医学装备》2012年第1期64-67,共4页China Medical Equipment
摘 要:目的:探讨64排螺旋CT尿路造影(CTU)不同的后处理重建算法在输尿管疾病中的应用效果。方法:选取30例经过临床诊断及病理确诊的输尿管疾病患者作为研究对象,采用延迟扫描、薄层重建等处理方法。后处理重建采用曲面重建(CPR)、多平面重建(MPR)、最大密度投影(MIP)方法,分析不同的重建方法对图像质量、疾病判断的准确度及毗邻关系的应用价值。结果:①CPR:图像质量评级优良为27例(占90%)、评级差为3例(占10%)。疾病判断准确率为:输尿管结石100%(18/18)、输尿管肿瘤60%(3/5)、输尿管囊肿100%(3/3)、先天性输尿管狭窄100%(2/2)、输尿管炎症100%(2/2);②MPR显示:图像评级优良为24例(80%)、评级差为6例(20%)。疾病判断准确率为:结石100%(18/18)、肿瘤80.0%(4/5)、囊肿100%(3/3)、先天性狭窄100%(2/2)、炎症100%(2/2);③MIP显示:图像评级优良为19例(占63.3%)、评级差11例(占36.7%)。疾病判断准确率为:结石83.3%(15/18)、肿瘤40.0%(2/5)、囊肿66.7%(2/3)、先天性狭窄50.0%(1/2)、炎症50.0%(1/2)。结论:根据输尿管疾病的显像程度,通过选择合适的重建方法能够完整显示输尿管的解剖关系,并可辅助临床做出正确的诊断,有助于指导临床治疗。Objective: To investigate the ureter 64-slice spiral CT angiography(CTU) reconstruction algorithm for different post-processing applications in the ureter disease,and discuss the application of results.Methods: Clinical diagnosis and pathological diagnosis of ureteral disease 30 cases for the study,by delaying the scanning,thin reconstruction approach.Reconstruction of post-processing using surface reconstruction(CPR),multi-planar reconstruction(MPR),maximum intensity projection(MIP) method,analysis of different reconstruction methods for image quality,disease,and to determine the accuracy of the proximity of the application.Results:(1) CPR: Excellent image quality rating in 27(90%),rated poor in 3 cases(10%).To determine the accuracy of disease: ureteral calculi 100%(18/18);ureteral tumor 60%(3 / 5);ureterocele 100%(3 / 3);congenital ureteral stenosis 100%(2 / 2);ureter inflammation of 100%(2 / 2).(2) MPR display: the image quality rating for 24 patients(80%),rated as poor in 6 cases(20%).To determine the accuracy of disease: calculus 100%(18/18),tumor 80.0%(4 / 5),cyst 100%(3 / 3),congenital stenosis 100%(2 / 2),inflammation of 100%(2 / 2).(3) MIP display: the image quality rating for 19 cases(63.3%),rated as poor in 11 cases(36.7%).Disease to determine the accuracy: 83.3% stones(15/18),40.0% tumors(2 / 5),cyst 66.7%(2 / 3),congenital stenosis 50.0%(1 / 2),inflammation of the 50.0%(1 / 2).Conclusion: According to the imaging of ureteral diseases,by selecting the appropriate method to complete the reconstruction shows the anatomical relationship between the ureter,to make a correct clinical diagnosis of secondary help guide clinical treatment.
分 类 号:TH774[机械工程—仪器科学与技术]
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