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中华诊断学电子杂志 ›› 2024, Vol. 12 ›› Issue (04) : 249 -253. doi: 10.3877/cma.j.issn.2095-655X.2024.04.007

临床研究

MR 弥散加权成像与HRCT 在肺部病变良恶性鉴别中的诊断效能对比
黎东城1, 陈涛1, 李新春1, 周嘉璇1, 包盈莹1, 俞家熙1, 万齐1,()   
  1. 1.510120 广州医科大学附属第一医院放射科
  • 收稿日期:2024-11-01 出版日期:2024-11-26
  • 通信作者: 万齐
  • 基金资助:
    国家自然科学基金青年科学基金项目(81601457)广东省钟南山基金会(ZNS-XS-ZZ-202409-007)广州市科技计划项目(2024A03J1229,202201020456)

Comparative diagnostic efficacy of magnetic resonance diffusion weighted imaging and HRCT in differentiating benign and malignant pulmonary lesions

Dongcheng Li1, Tao Chen1, Xinchun Li1, Jiaxuan Zhou1, Yingying Bao1, Jiaxi Yu1, Qi Wan,1()   

  1. 1.Department of Radiology,the First Affiliated Hospital of Guangzhou Medical University,Guangzhou 510120,China
  • Received:2024-11-01 Published:2024-11-26
  • Corresponding author: Qi Wan
引用本文:

黎东城, 陈涛, 李新春, 周嘉璇, 包盈莹, 俞家熙, 万齐. MR 弥散加权成像与HRCT 在肺部病变良恶性鉴别中的诊断效能对比[J]. 中华诊断学电子杂志, 2024, 12(04): 249-253.

Dongcheng Li, Tao Chen, Xinchun Li, Jiaxuan Zhou, Yingying Bao, Jiaxi Yu, Qi Wan. Comparative diagnostic efficacy of magnetic resonance diffusion weighted imaging and HRCT in differentiating benign and malignant pulmonary lesions[J]. Chinese Journal of Diagnostics(Electronic Edition), 2024, 12(04): 249-253.

目的

探讨磁共振弥散加权成像(DWI)与高分辨率CT(HRCT)在肺部病变良恶性鉴别中的诊断效能。

方法

回顾性分析2014 年 7 月至2015 年2 月广州医科大学附属第一医院胸外科诊治的114 例肺部病变患者,均接受胸部HRCT 扫描、MR-DWI 检查。以HRCT 首诊报告结果为参考,将肺部病变分为HRCT 明确诊断组与难鉴别组,以术后病理结果为“金标准”,使用受试者操作特征曲线(ROC)评价两者的诊断效能。

结果

114 例患者中,97 例(85.09%,97/114)为明确诊断组,DWI和HRCT 的ROC 曲线下面积(AUC)分别为0.832(95%CI:0.742 ~0.900)、0.869(95%CI:0.785 ~0.969),两者比较,差异无统计学意义(Z=0.511,P=0.609)。17 例(14.91%,17/114)为难鉴别组,两者AUC 分别为0.829(95%CI:0.571~0.964)、0.500(95%CI:0.254 ~0.746),两者比较,差异有统计学意义(Z=3.077,P=0.002)。

结论

对于肺部病变,DWI 与HRCT 具有相当的诊断效能。在HRCT 难以鉴别的肺部病变中,DWI 能提供额外的诊断价值。

Objective

To explore the diagnostic efficacy of diffusion weighted imaging (DWI) and high resolution CT (HRCT) in differentiating benign and malignant pulmonary lesions.

Methods

From July 2014 to February 2015,a retrospective analysis was conducted on 114 patients with pulmonary lesions who were treated in the Department of Thoracic Surgery of the First Affiliated Hospital of Guangzhou Medical University.All patients underwent chest HRCT scanning and MR-DWI examination.Based on the initial HRCT report results,the pulmonary lesions were divided into HRCT definitive diagnosis group and indistinguishable group.The postoperative pathological results were used as the "gold standard",and the diagnostic efficacy was evaluated using the receiver operating characteristic (ROC) curve.

Results

Among the 114 patients,97 cases (85.09%,97/114) were in the definitive diagnosis group,the areas under the ROC curve (AUC) of DWI and HRCT were 0.832 (95%CI:0.742-0.900) and 0.869 (95%CI:0.785-0.969),respectively,and the difference was not statistically significant (Z=0.511,P=0.609).There were 17 cases (14.91%,17/114) in the indistinguishable group,with AUCs of 0.829 (95%CI:0.571-0.964) and 0.500(95%CI:0.254-0.746),respectively,and the difference was statistically significant(Z=3.077,P=0.002).

Conclusions

DWI and HRCT have comparable diagnostic efficacy.In pulmonary lesions that are difficult to distinguish by HRCT,DWI can provide additional diagnostic value.

表1 两组肺部病变患者临床及影像参数比较
图1 肺部病变HRCT 明确诊断患者影像学检查图像 注:a、b 图为49 岁女性患者HRCT 图像,a 图示左下肺前内基底段直径18 mm 类圆形病灶,边缘光滑;b 图示轴位ADC 图上病变呈高信号(黄绿色),提示良性病变。病理诊断曲霉菌感染。c、d 图为63 岁男性患者HRCT 图像,c 图示右肺上叶直径35 mm 团块状病变,边缘分叶毛刺;d 图示轴位ADC 图上病变呈低信号(深蓝色),提示恶性病变。病理诊断肺浸润性腺癌。HRCT 为高分辨率CT;ADC 为表观扩散系数
图2 肺部病变HRCT 难鉴别患者影像学检查图像 注:29 岁女性患者,a 图示右肺下叶直径36 mm 团块状病变;b 图示轴位ADC 图上病变呈高信号(黄绿色),提示良性病变。病理诊断炎性病变。HRCT 为高分辨率CT;ADC为表观扩散系数
图3 肺部病变明确诊断患者ADC 及HRCT 诊断效能比较 注:ADC 的AUC 为0.832;HRCT 的AUC 为0.869。HRCT 为高分辨率CT;ADC 为表观扩散系数;ROC 曲线为受试者操作特征曲线;AUC 为曲线下面积
图4 肺部病变难鉴别患者ADC 及HRCT 诊断效能比较 注:ADC 的AUC 为0.829;HRCT 的AUC 为0.500。HRCT 为高分辨率CT;ADC 为表观扩散系数;ROC 曲线为受试者操作特征曲线;AUC 为曲线下面积
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