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Application of diffusion-weighted magnetic resonance imaging with different b-values in the puncture of lung space-occupying lesions
WANG Qianru  WANG Dayong  ZHAO Sen  LIU Shuangfeng  WANG Zhixue 

Cite this article as: Wang QR, Wang DR, Zhao S, et al. Application of diffusion-weighted magnetic resonance imaging with different b-values in the puncture of lung space-occupying lesions[J]. Chin J Magn Reson Imaging, 2021, 12(8): 75-78. DOI:10.12015/issn.1674-8034.2021.08.015.


[Abstract] Objective To explore the application value of multi-b value diffusion weighted imaging (DWI) in precise puncture of lung space-occupying lesions. Materials andMethods A total of 56 patients with lung space-occupying lesions were first diagnosed and clinically diagnosed as lung cancer in our hospital. With the patient's consent, all patients underwent 3.0 T MRI prior to the puncture. Analyzed the difference of ADC value of lung cancer active components and non-tumor components around tumor at different b-values, and used ROC curve to analyze the guiding efficiency of MRI multi-b-value DWI for precise puncture of lung occupying lesions.Results Under different b values of the four groups (b values are 300, 600, 900, 1200 s/mm2), the differences between the active components of lung cancer and the surrounding non-tumor subgroups were statistically significant (P＞0.05), and the ADC values of the active components of lung cancer were all lower than those of the surrounding non-tumor components. When b=900 s/mm2, ADC value had the highest differential diagnosis efficiency for lung cancer tumor active components and surrounding non-tumor components (obstructive chronic inflammation, atelectasis and fibroplasia), and the highest guidance efficiency for clinical precise puncture.Conclusions DWI has important application value in precise puncture of lung space-occupying lesions.
[Keywords] maenetic resonance imaging；diffusion weighted imaging；apparent dispersion coefficient；lung space occupying lesion；precise puncture

WANG Qianru   WANG Dayong   ZHAO Sen   LIU Shuangfeng   WANG Zhixue*  

Department of Imaging, the First Affiliated Hospital of Henan University, Kaifeng 475000, China

Wang ZX, E-mail: wangzhi@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS This work was part of Kaifeng Science and Technology Development Project (No. 1808013).
Received  2020-12-19
Accepted  2021-02-25
DOI: 10.12015/issn.1674-8034.2021.08.015
Cite this article as: Wang QR, Wang DR, Zhao S, et al. Application of diffusion-weighted magnetic resonance imaging with different b-values in the puncture of lung space-occupying lesions[J]. Chin J Magn Reson Imaging, 2021, 12(8): 75-78. DOI:10.12015/issn.1674-8034.2021.08.015.

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