Motion-robust parameter estimation in abdominal diffusion-weighted MRI by simultaneous image registration and model estimation

S Kurugol, M Freiman, O Afacan, L Domachevsky… - Medical image …, 2017 - Elsevier
Quantitative body DW-MRI can detect abdominal abnormalities as well as monitor response-
to-therapy for applications including cancer and inflammatory bowel disease with increased …

Motion compensated abdominal diffusion weighted MRI by simultaneous image registration and model estimation (SIR-ME)

S Kurugol, M Freiman, O Afacan… - … Image Computing and …, 2015 - Springer
Non-invasive characterization of water molecule's mobility variations by quantitative analysis
of diffusion-weighted MRI (DW-MRI) signal decay in the abdomen has the potential to serve …

Spatially-constrained probability distribution model of incoherent motion (SPIM) for abdominal diffusion-weighted MRI

S Kurugol, M Freiman, O Afacan… - Medical image …, 2016 - Elsevier
Quantitative diffusion-weighted MR imaging (DW-MRI) of the body enables characterization
of the tissue microenvironment by measuring variations in the mobility of water molecules …

Influence of image registration on apparent diffusion coefficient images computed from free‐breathing diffusion MR images of the abdomen

JM Guyader, L Bernardin, NHM Douglas… - Journal of Magnetic …, 2015 - Wiley Online Library
Background To evaluate the influence of image registration on apparent diffusion coefficient
(ADC) images obtained from abdominal free‐breathing diffusion‐weighted MR images (DW …

Spatially constrained incoherent motion method improves diffusion‐weighted MRI signal decay analysis in the liver and spleen

V Taimouri, O Afacan, JM Perez‐Rossello… - Medical …, 2015 - Wiley Online Library
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 …

Error model for reduction of cardiac and respiratory motion effects in quantitative liver DW‐MRI

P Murphy, T Wolfson, A Gamst, C Sirlin… - Magnetic resonance …, 2013 - Wiley Online Library
Diffusion‐weighted images of the liver exhibit signal dropout from cardiac and respiratory
motion, particularly in the left lobe. These artifacts cause bias and variance in derived …

Determination of optimized set of b-values for apparent diffusion coefficient mapping in liver diffusion-weighted MRI

O Pena-Nogales, D Hernando, S Aja-Fernandez… - Journal of Magnetic …, 2020 - Elsevier
In this manuscript we derive the Cramér-Rao Lower Bound (CRLB) of the monoexponential
diffusion-weighted signal model under a realistic noise assumption, and propose a …

Simultaneous segmentation and iterative registration method for computing ADC with reduced artifacts from DW‐MRI

H Veeraraghavan, RKG Do, DL Reidy… - Medical …, 2015 - Wiley Online Library
Purpose: Apparent diffusion coefficient (ADC), derived from diffusion‐weighted magnetic
resonance images (DW‐MRI), measures the motion of water molecules in vivo and can be …

Reliable estimation of incoherent motion parametric maps from diffusion-weighted MRI using fusion bootstrap moves

M Freiman, JM Perez-Rossello, MJ Callahan… - Medical image …, 2013 - Elsevier
Diffusion-weighted MRI has the potential to provide important new insights into physiological
and microstructural properties of the body. The Intra-Voxel Incoherent Motion (IVIM) model …

Self‐supervised IVIM DWI parameter estimation with a physics based forward model

SD Vasylechko, SK Warfield, O Afacan… - Magnetic resonance …, 2022 - Wiley Online Library
Purpose To assess the robustness and repeatability of intravoxel incoherent motion model
(IVIM) parameter estimation for the diffusion‐weighted MRI in the abdominal organs under …