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Diagnostic Performance of Diffusion - Weighted Imaging for Multiple Hilar and Mediastinal Lymph Nodes with FDG Accumulation
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 Title & Authors
Diagnostic Performance of Diffusion - Weighted Imaging for Multiple Hilar and Mediastinal Lymph Nodes with FDG Accumulation
Usuda, Katsuo; Maeda, Sumiko; Motono, Nozomu; Ueno, Masakatsu; Tanaka, Makoto; Machida, Yuichiro; Matoba, Munetaka; Watanabe, Naoto; Tonami, Hisao; Ueda, Yoshimichi; Sagawa, Motoyasu;
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Background: It is sometimes difficult to assess patients who have multiple hilar and mediastinal lymph nodes (MHMLN) with FDG accumulation in PET-CT. Since it is uncertain whether diffusion-weighted magnetic resonance imaging (DWI) is useful in the assessment of such patients, its diagnostic performance was assessed. Materials and Methods: Twenty-three patients who had three or more stations of hilar and mediastinal lymph nodes with SUVmax of 3 or more in PET-CT were included in this study. Results: For diagnosis of disease, there were 20 malignancies (lung cancers 17, malignant lymphomas 2 and metastatic lung tumor 1), and 3 benign cases (sarcoidosis 2 and benign disease 1). For diagnosis of lymph nodes, there were 7 malignancies (metastasis of lung cancer 7 and malignant lymphoma 1) and 16 benign lymphadenopathies (pneumoconiosis/silicosis 7, sarcoidosis 4, benign disease 4, and atypical lymphocyte infiltration 1). The ADC value () of malignant MHMLN was significantly lower than that () of benign MHMLN (P
Diffusion-weighted imaging;magnetic resonance imaging;PET;lymph nodes;
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Asian Pacific Journal of Cancer Prevention, 2016. vol.17. 6, pp.2775-2780
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