Application of Intravoxel Incoherent Motion (IVIM) Model for Differentiation Between Metastatic and Non-Metastatic Head and Neck Lymph Nodes.

Autor: Hejduk, Beata, Bobek-Billewicz, Barbara, Rutkowski, Tomasz, Hebda, Anna, Zawadzka, Agata, Jurkowski, Marek K.
Předmět:
Zdroj: Polish Journal of Radiology; 2017, Vol. 82, p506-510, 5p
Abstrakt: Background: Application of intravoxel incoherent motion (IVIM) model parameters, including: true diffusion (D), pseudodiffusion (D*), and perfusion fraction (Fp), for differentiation between metastatic and nonmetastatic head and neck lymph nodes. Material/Methods: Diffusion-weighted images/apparent diffusion coefficient (DWI/ADC) images of 86 lymph nodes from 31 cancer patients were analyzed. DWI images were obtained with a 1.5T MRI scanner (Magnetom Avanto); b=0,50, 150, 300, 500, 750, 1000, 1200 s/mm2 . Results: In the study group, there were 32 (37%) and 54 (67%) metastatic and non-metastatic lymph nodes, respectively. The mean values of D, D*, and Fp did not differ significantly between metastatic and non-metastatic lymph nodes. Conclusions: IVIM parameters are not useful for differentiation between metastatic and non-metastatic head and neck lymph nodes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index