Spatially-constrained probability distribution model of incoherent motion (SPIM) for abdominal diffusion-weighted MRI
نویسندگان
چکیده
منابع مشابه
A Spatially Constrained Probability Distribution Model of Incoherent Motion (spim) in Quantitative Diffusion Weighted Mri
Purpose: Quantitative diffusion-weighted MRI (DW-MRI) has a well-established role in the detection and characterization of a variety of abdominal abnormalities including liver fibrosis, tumors and active inflammation. DW-MRI enables characterization of the tissue microstructure through measurement of the mobility of water molecules and the variations in their mobility due to changes in cell den...
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Purpose: Diffusion-weighted MRI (DW-MRI) of the body is a non-invasive imaging technique that enables characterization of tissue microenvironments through measurement of variations in the mobility of water molecules due to cellularity, cell membrane integrity, and compartment they are located. Quantitative DW-MRI has a well-established role in the detection, characterization and follow-up of a ...
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Quantitative analysis of fast and slow diffusion from abdominal Diffusion-weighted MRI has the potential to provide important new insights into physiological and microstructural properties of the body. However, the commonly used, independent voxel-wise fitting of the signal decay model leads to imprecise parameter estimates, which has hampered their practical usage. In this work we evaluated th...
متن کاملSpatially constrained incoherent motion method improves diffusion-weighted MRI signal decay analysis in the liver and spleen.
PURPOSE To evaluate the effect of the spatially constrained incoherent motion (SCIM) method on improving the precision and robustness of fast and slow diffusion parameter estimates from diffusion-weighted MRI in liver and spleen in comparison to the independent voxel-wise intravoxel incoherent motion (IVIM) model. METHODS We collected diffusion-weighted MRI (DW-MRI) data of 29 subjects (5 hea...
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BACKGROUND This study aimed to evaluate the diagnostic value of the D value, D* value, and f magnitude for identifying benign and malignant hepatic tumors using intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI). MATERIAL AND METHODS Data of 89 cases (123 lesions) with hepatic tumor confirmed by surgical pathology and postoperative follow-up were retrospectively collected. Amo...
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ژورنال
عنوان ژورنال: Medical Image Analysis
سال: 2016
ISSN: 1361-8415
DOI: 10.1016/j.media.2016.03.009