肺实质病变的3T-MRI和CT对照研究

doi:10.19871/j.cnki.xfcrbzz.2021.01.011

新发传染病电子杂志 ›› 2021, Vol. 6 ›› Issue (1): 49-53.doi: 10.19871/j.cnki.xfcrbzz.2021.01.011

肺实质病变的3T-MRI和CT对照研究

严琴琴¹, 沈杰¹, 卢水华², 单飞¹, 施裕新¹

1.上海市（复旦大学附属）公共卫生临床中心影像科,上海 201508;
2.上海市（复旦大学附属）公共卫生临床中心结核科,上海 201508

收稿日期:2021-01-06 出版日期:2021-02-28 发布日期:2021-03-03
通讯作者: 施裕新,E-mail：shiyx828288@163.com

Correlation between computed tomographic and 3T magnetic resonance imaging findings of parenchymal lung diseases

Yan Qinqin¹, Shen Jie¹, Lu Shuihua², Shan Fei¹, Shi Yuxin¹

1. Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China;
2. Department of Tuberculosis, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China

Received:2021-01-06 Online:2021-02-28 Published:2021-03-03

摘要/Abstract

摘要： 目的探讨优选肺MRI序列对肺部基本病变的检测效能。方法收集2018年10月至2020年1月在上海市（复旦大学附属）公共卫生临床中心因肺部疾病行3T-MRI检查的患者178例。随机选取60例患者行4个序列的 3T-MRI检查,序列包括星状容积内插屏息检查（Star-VIBE）和容积内插屏息检查（VIBE）,快速刀锋自旋回波序列（fBLADE TSE）和三维可变反转角快速自旋回波序列（3D-SPACE）,以CT为参照,比较4个序列图像的信噪比、对比度、5分评分,以及4个序列的病灶检出率。结果 Star-VIBE信噪比明显高于VIBE,对比度和5分评分差异无统计学意义;fBLADE TSE信噪比和5分评分明显高于3D-SPACE,对比度低于3D-SPACE;Star-VIBE和VIBE,fBLADE TSE和3D-SPACE病灶检出率差异无统计学意义。以CT为参照,<6mm、6~8mm、8~10mm及≥10mm结节的MRI检出率分别为90.5%、95.6%、100%和100%,钙化结节检出率为80.3%,实变、磨玻璃灶、空洞、分叶、毛刺、条索、胸膜反应、树芽征、粟粒样结节、卫星灶的检出率和CT相当,胸膜凹陷征和支气管征象的检出率弱于CT,干酪结节、液化、黏液栓、阻塞性肺炎等的检出率优于CT。结论自由呼吸的T₁WI Star-VIBE和T₂WI fBLADE TSE可提供较高质量的图像。MRI能有效检出肺内基本病变,干酪结节、液化、黏液栓、阻塞性肺炎等的检出率优于CT。

关键词: 肺部磁共振成像, 体层摄影术, X线计算机, 图像质量, 检出

Abstract: Objective To optimize the pulmonary 3T magnetic resonance sequences and evaluate the diagnostic performance of parenchymal lung diseases. Methods 178 patients underwent chest 3T-MRI including star-volumetric interpolated breath-hold(Star-VIBE), VIBE, fast BLADE turbo spin echo(fBLADE TSE) and three-dimension sampling perfection with application optimized contrasts using different flip angle evolution(3D-SPACE). Image quality and detection rate of four sequences from random 60 patients were compared. And CT as reference was used for evaluation of detection. Results SNR of Star-VIBE was statistically higher than VIBE. Comparisons of CNR and 5-point scores had no difference. SNR and 5-point scores of fBLADE TSE was statistically higher than 3D-SPACE. The CNR of fBLADE TSE was lower than 3D-SPACE. Detection rate between Star-VIBE and VIBE, fBLADE TSE and 3D-SPACE had no difference. The sensitivity of nodules <6mm, 6-8mm, 8-10mm and ≥10mm was 90.5%, 95.6%, 100% and 100%. 3T-MRI sensitivity of calcified nodules was 80.3%. 3T-MRI was comparable to CT in detecting consolidation, ground-glass opacities, cavity, lobulation, spiculation, stripe, pleural reaction, tree-in-bud sign, miliary nodules, satellite lesions. 3T-MRI was inferior to CT in detection of pleural indention and bronchiectasis. 3T-MRI was superior to present caseous necrosis, liquefaction, mucus plug and obstructive pneumonia. Conclusions free-breathing Star-VIBE and fBLADE TSE can provide high-quality images. And 3T-MRI is comparable to CT for pulmonary parenchyma lesions and has advantages of identifying caseous necrosis, liquefaction, mucus plug and obstructive pneumonia.

Key words: Pulmonary magnetic resonance imaging, X-ray computer, tomography, Image quality, Detection

严琴琴, 沈杰, 卢水华, 单飞, 施裕新. 肺实质病变的3T-MRI和CT对照研究[J]. 新发传染病电子杂志, 2021, 6(1): 49-53.

Yan Qinqin, Shen Jie, Lu Shuihua, Shan Fei, Shi Yuxin. Correlation between computed tomographic and 3T magnetic resonance imaging findings of parenchymal lung diseases[J]. Electronic Journal of Emerging Infectious Diseases, 2021, 6(1): 49-53.

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肺实质病变的3T-MRI和CT对照研究

Correlation between computed tomographic and 3T magnetic resonance imaging findings of parenchymal lung diseases

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