期刊
TRANSLATIONAL ONCOLOGY
卷 10, 期 5, 页码 831-838出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.tranon.2017.08.003
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PURPOSE: To evaluate whether intravoxel incoherent motion (IVIM)-related parameters could be used to differentiate malignant from benign focal liver lesions (FLLs) and to improve diagnostic efficiency. METHODS: Seventy-four patients with 75 lesions, including 51 malignant FLLs and 24 benign FLLs, underwent liver 3.0-T magnetic resonance imaging for routine examination sequences. IVIM diffusion-weighted imaging (DWI) with 11 b values (0-800 s/mm(2)) was also acquired concurrently. Apparent diffusion coefficient (ADC(total)) and IVIM-derived parameters, such as the pure diffusion coefficient (D), the pseudodiffusion coefficient (D), and the perfusion fraction (f), were calculated and compared between the two groups. A receiver operating characteristic curve analysis was performed to assess their diagnostic value. RESULTS: ADCtotal, D, and f were significantly lower in the malignant group than in the benign group, whereas D did not show a statistical difference. D had a larger area under the curve value (0.968) and higher sensitivity (92.30%) for differentiation. CONCLUSION: IVIM is a useful method to differentiate malignant and benign FLLs. The D value showed higher efficacy to detect hepatic solid lesions.
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