直观弥散加权成像在鼻咽癌MR快速诊断中提高时间效能的价值

发布时间：2018-03-07 04:35

本文选题：弥散加权成像　切入点：MR　出处：《广东医学》2014年13期 　论文类型：期刊论文

【摘要】：目的探讨直观弥散加权成像(DWI)图像对于帮助MR阅片医生在鼻咽癌快速诊断中提高时间效能的可行性。方法 60例鼻咽癌MR患者均分为A、B两组。阅片医生D1分析A组的常规MR资料和B组的"常规MR+DWI"资料。阅片医生D2分析A组的"常规MR+DWI"资料和B组的常规MR资料。要求每个病例的阅片时间都控制在4 min之内,记录所有诊断结果及阅片时间。将诊断结果与定性金标准结果进行比较分析,比较分析常规MR与"常规MR+DWI"之间的诊断价值,比较时间效能。结果常规MR和"常规MR+DWI"的Az值(0.722±0.071和0.785±0.066)在鼻咽癌原发灶诊断方面差异无统计学意义;在颈淋巴结转移灶方面差异有统计学意义(0.744±0.025和0.834±0.021);在颅底骨质侵犯方面差异有统计学意义(0.717±0.068和0.883±0.048)。常规MR的平均阅片时间是(179.5±48.5)s,而"常规MR+DWI"是(149.5±41.7)s,两者之间的时间效能差异有统计学意义。结论直观DWI有助于提高鼻咽癌MR快速诊断的时间效能,会一定程度上提高诊断者对于原发灶与转移灶的敏感度和特异度。DWI应该成为鼻咽癌MR检查的常规扫描序列之一。
[Abstract]:Objective to investigate the feasibility of direct diffusion-weighted imaging (DWI) images for improving the time efficiency of Mr radiographers in the rapid diagnosis of nasopharyngeal carcinoma. Methods Sixty patients with nasopharyngeal carcinoma were divided into two groups: group A and group B. The routine Mr data of group A and group B were analyzed by radiographer D2, and the conventional Mr data of group B and group A were analyzed by radiographer D2. The time required for each case was controlled within 4 min. All the diagnostic results and the time of reading films were recorded. The diagnostic results were compared with the results of qualitative gold standard, and the diagnostic value between conventional Mr and conventional Mr DWI was compared and analyzed. Results the Az values of conventional Mr and "conventional Mr DWI" were 0.722 卤0.071 and 0.785 卤0.066, respectively. There was no significant difference in the diagnosis of primary nasopharyngeal carcinoma (NPC). The difference in cervical lymph node metastasis was 0.744 卤0.025 and 0.834 卤0.021 and 0.717 卤0.068 and 0.883 卤0.048 respectively. The mean time of conventional Mr was 179.5 卤48.5 and "conventional Mr DWI" was 149.5 卤41.7 s. Conclusion intuitionistic DWI is helpful to improve the time efficiency of rapid Mr diagnosis of nasopharyngeal carcinoma. To some extent, the sensitivity and specificity of the primary and metastatic foci should be improved. DWI should be one of the routine MRI sequences for nasopharyngeal carcinoma.
【作者单位】：广州医科大学附属肿瘤医院放射科;
【分类号】：R739.63;R445.2

【相似文献】