Open AccessPreliminary comparison of diffusion‐weighted MRI and PET / CT in predicting histological type and malignancy of lung cancer
Author(s) -
Liu LiPeng,
Zhang XinXin,
Cui LongBiao,
Li Jie,
Yang JuanLi,
Yang HaiNan,
Zhang Yan,
Zhou Ying,
Tang Xing,
Qi Shun,
Fang Yuan,
Zhang Jian,
Yin Hong
Publication year - 2017
Publication title -
the clinical respiratory journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.789
H-Index - 33
eISSN - 1752-699X
pISSN - 1752-6981
DOI - 10.1111/crj.12316
Subject(s) - medicine , malignancy , lung cancer , radiology , cancer , diffusion mri , lung , pathology , nuclear medicine , magnetic resonance imaging
Emerging evidence shows that diffusion‐weighted magnetic resonance imaging ( DW MRI ) and fluorine 18 fluorodeoxyglucose positron emission tomography/computed tomography ( 18 F ‐ FDG PET / CT ) might be useful in predicting histological type and malignancy of lung cancer, and even in specifically detecting the types of gene mutation. Objective We assessed whether DW MRI is equivalent to PET / CT in lung cancer diagnosis and evaluation. Methods The institutional review board approved this study, and written informed consent was obtained from all patients. DW MRI and FDG PET / CT were performed before therapy in 15 lung cancer patients diagnosed by pathological examination. Apparent diffusion coefficient ( ADC ), ratio of ADC ( rADC = ADC in tumor/ ADC in spinal cord) and maximal standardized uptake value ( SUV max ) were assessed. Results ADC , rADC and SUV max did not reveal significant differences among different types of lung cancer. Sensitivity, specificity and accuracy of ADC , rADC and SUV max proved to be not significantly different in the detection of adenocarcinoma and squamous cell carcinoma. Difference in the abilities of the sensitivity, specificity and accuracy of ADC , rADC and SUV max to detect adenocarcinoma and squamous cell carcinoma proved to be insignificant. Although Ki ‐67 score did not show correlation with ADC , rADC and SUV max , significant positive correlation was found between ADC and rADC , and ADC and SUV max . Conclusions Both DW MRI and FDG PET / CT had similar limited diagnostic capability of predicting different histological types and malignancy of lung cancer. This study may help provide a novel insight into diagnostic and therapeutic strategies of lung cancer based on DW MRI .