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Morphologic Evaluation of Primary Non-Small Cell Lung Cancer by 3 Tesla MRI with Free-Breathing Ultrashort Echo Time and Radial T1-Weighted Gradient Echo Sequences: A Comparison with CT Analysis

대한영상의학회지 2019년 80권 3호 p.466 ~ 476
 ( Lee Hyun-Ji ) - Yonsei University Wonju College of Medicine Wonju Severance Christian Hospital Department of Radiology

 ( Choi Eun-Hee ) - Harvard Medical School Beth Israel Deaconess Medical Center Department of Medicine
 ( Lee Myoung-Kyu ) - Yonsei University Wonju College of Medicine Wonju Severance Christian Hospital Department of Internal Medicine
 ( Zhang Yu ) - Yonsei University Wonju College of Medicine Wonju Severance Christian Hospital Department of Radiology
 ( Kwon Woo-cheol ) - Yonsei University Wonju College of Medicine Wonju Severance Christian Hospital Department of Radiology

Abstract


Purpose: To evaluate morphologic features of primary non-small cell lung cancer using 3 Tesla MRI with free-breathing compared with CT.

Materials and Methods: Thirty-six patients were enrolled. A 64-channel multidetector CT and 3 Tesla MRI with ultrashort echo time pointwise encoding time reduction with radial acquisition (PETRA) and radial volumetric interpolated breath-hold examination (VIBE) were compared in size, shape, margin, internal characteristics, and tumor interface of primary tumor.

Results: There were no significant differences in tumor size between CT and either PETRA or radial VIBE (p = 0.054 and p = 0.764, respectively). Kappa (κ) statistics of shape, margin, and internal characteristics were respectively κ = 0.86, 0.65, 0.77 on PETRA and κ = 0.93, 0.84, 0.83 on radial VIBE compared with CT. PETRA and radial VIBE revealed clearer interface compared with CT (p = 0.000 and p < 0.000, respectively). Radial VIBE showed higher frequency of clear interface (94.4%) than PETRA (88.9%). MRI did not show significantly clear interface which was located in lung base (p = 0.363 on PETRA and p = 0.175 on radial VIBE) compared with CT.

Conclusion: MRI with PETRA and radial VIBE sequences can be a feasible method to evaluate morphologic features of primary non-small cell lung cancer compared with CT.

키워드

Magnetic Resonance Imaging; Carcinoma, Non-Small-Cell Lung; Diagnostic Imaging
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