Lung morphology: Fast MR imaging assessment with a volumetric interpolated breath-hold technique: Initial experience with patients
Lung morphology: Fast MR imaging assessment with a volumetric interpolated breath-hold technique: Initial experience with patients
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DOI：
10.1148/radiol.2261011974
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发表时间：
2003-01-01
期刊：
影响因子：
19.7
通讯作者：
Heller, M
中科院分区：
文献类型：
--
作者：
Biederer, J;Both, M;Heller, M
目得：为了前瞻性地评估快速容积内插三维（3D）梯度回波（GRE）序列的临床可行性磁共振（MR）成像的肺部，并比较这种检查与标准的计算机断层扫描（CT）在肺部abnormality.MATERIALS和方法：25例不同的肺部异常进行了检查与3D GRE MR成像。对7例肺内小结节、8例肺内大肿瘤TNM分期和5例良性支气管疾病进行了评价。将基于MR成像的诊断与CT和出院时的诊断进行比较。列联表和McNemar检验被用来评估MR成像和CT为基础的diagnosis.Results之间的差异的意义：MR成像和CT为基础的诊断是相同的24 25例。在其余患者中，临床结果证实了胸膜积脓的MR成像结果的准确性。15个直径小于10 mm的实性肺结节中，MRI检出10个（P > 1）。MRI和CT的肿瘤分期相同，但2个患者的淋巴结分期不同，原因是MRI高估了淋巴结的大小（P > 0.2）。在5例支气管扩张患者中，MR成像显示了33个受累肺段中的26个肺段;在支气管扩张（P >.05）和支气管壁增厚（P >.2）方面，MR成像与CT表现差异无显著性。由于图像伪影的存在，MRI高估了支气管周围纤维化（P
PURPOSE: To prospectively evaluate the clinical feasibility of magnetic resonance (MR) imaging of the lungs with fast volumetric interpolated three-dimensional (3D) gradient-recalled-echo (GRE) sequences and to compare this examination with standard computed tomography (CT) in patients with lung abnormalities.MATERIALS AND METHODS: Twenty-five patients with different lung abnormalities were examined with 3D GRE MR imaging. The small pulmonary nodules in seven, TNM stage of large intrapulmonary tumors in eight, and benign bronchial disease in five patients were evaluated. MR imaging-based diagnoses were compared with diagnoses made at CT and at discharge from the hospital. Contingency tables and the McNemar test were used to evaluate the significance of differences between MR imaging- and CT-based diagnoses.RESULTS: The MR imaging- and CT-based diagnoses were identical in 24 of 25 patients. In the remaining patient, clinical findings confirmed the accuracy of the MR imaging finding of pleural empyema. Ten of 15 solid pulmonary nodules smaller than 10 mm in diameter were detected at MR imaging (P > 1) Tumor stages at MR imaging and CT were identical, but lymph node stages at the two examinations differed in two of eight patients owing to overestimation of lymph node size at MR imaging (P >.2). In the five patients with bronchiectasis, MR imaging depicted 26 of 33 affected lung segments; differences between MR imaging and CT findings of bronchial dilatation (P >.05) and bronchial wall thickening (P >.2) were not significant. Peribronchial fibrosis was overestimated at MR imaging owing to image artifacts (P