Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs

• Published in: Magnetic resonance in medicine Vol. 75; no. 5; pp. 2175 - 2184
• Main Authors: Barbieri, Sebastiano, Donati, Olivio F., Froehlich, Johannes M., Thoeny, Harriet C.
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.05.2016; Wiley Subscription Services, Inc
• Subjects: Abdomen - diagnostic imaging; abdominal; Adult; algorithm; Algorithms; Bayes Theorem; Bayesian; Computer Simulation; Diffusion Magnetic Resonance Imaging; Healthy Volunteers; Humans; Image Interpretation, Computer-Assisted - methods; intravoxel-incoherent-motion; Kidney Cortex - diagnostic imaging; Kidney Medulla - diagnostic imaging; least-squares; Liver - diagnostic imaging; Male; Middle Aged; Motion; Pancreas - diagnostic imaging; Probability; Reproducibility of Results; segmented; Signal-To-Noise Ratio; Spleen - diagnostic imaging; abdominal; least-squares; segmented; intravoxel-incoherent-motion; Bayesian; algorithm

Purpose To compare the variability, precision, and accuracy of six different algorithms (Levenberg–Marquardt, Trust‐Region, Fixed‐Dp, Segmented‐Unconstrained, Segmented‐Constrained, and Bayesian‐Probability) for computing intravoxel‐incoherent‐motion‐related parameters in upper abdominal organs. Met...