Results 21 to 30 of about 4,576 (213)

Comparison of six fit algorithms for the intra-voxel incoherent motion model of diffusion-weighted magnetic resonance imaging data of pancreatic cancer patients. [PDF]

PLoS ONE, 2018
The intravoxel incoherent motion (IVIM) model for diffusion-weighted imaging (DWI) MRI data bears much promise as a tool for visualizing tumours and monitoring treatment response.
Oliver J Gurney-Champion, Remy Klaassen, Martijn Froeling, Sebastiano Barbieri, Jaap Stoker, Marc R W Engelbrecht, Johanna W Wilmink, Marc G Besselink, Arjan Bel, Hanneke W M van Laarhoven, Aart J Nederveen   +10 more
doaj   +1 more source

Using IVIM Parameters to Differentiate Prostate Cancer and Contralateral Normal Tissue through Fusion of MRI Images with Whole-Mount Pathology Specimen Images by Control Point Registration Method

Diagnostics, 2021
The intravoxel incoherent motion (IVIM) model may enhance the clinical value of multiparametric magnetic resonance imaging (mpMRI) in the detection of prostate cancer (PCa).
Cheng-Chun Lee, Kuang-Hsi Chang, Feng-Mao Chiu, Yen-Chuan Ou, Jen-I. Hwang, Kuan-Chun Hsueh, Hueng-Chuen Fan   +6 more
doaj   +1 more source

Improving Accuracy of Intravoxel Incoherent Motion Reconstruction using Kalman Filter in Combination with Neural Networks: A Simulation Study [PDF]

Journal of Biomedical Physics and Engineering
Background: The intravoxel Incoherent Motion (IVIM) model extracts perfusion map and diffusion coefficient map using diffusion-weighted imaging. The main limitation of this model is inaccuracy in the presence of noise.Objective: This study aims to ...
Sam Sharifzadeh Javidi, Reza Ahadi, Hamidreza Saligheh Rad   +2 more
doaj   +1 more source

The capillary network: a link between ivim and classical perfusion [PDF]

Magnetic Resonance in Medicine, 1992
AbstractMR measurements based on motion encoding gradients, such as intravoxel incoherent motion imaging, could provide, in principle, information on flowing blood volume and blood velocity. This note shows that, in addition, the knowledge of the capillary network organization may provide a link between these measurements and those obtained by ...
Le Bihan, D., Turner, R.
openaire   +4 more sources

Quantitative Dynamic-Enhanced MRI and Intravoxel Incoherent Motion Diffusion−Weighted Imaging for Prediction of the Pathological Response to Neoadjuvant Chemotherapy and the Prognosis in Locally Advanced Gastric Cancer

Frontiers in Oncology, 2022
BackgroundThis study aimed to explore the predictive value of quantitative dynamic contrast-enhanced MRI (DCE-MRI) and intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) quantitative parameters for the response to neoadjuvant chemotherapy
Yongjian Zhu, Zhichao Jiang, Bingzhi Wang, Ying Li, Jun Jiang, Yuxin Zhong, Sicong Wang, Liming Jiang   +7 more
doaj   +1 more source

Self-supervised neural network improves tri-exponential intravoxel incoherent motion model fitting compared to least-squares fitting in non-alcoholic fatty liver disease

Frontiers in Physiology, 2022
Recent literature suggests that tri-exponential models may provide additional information and fit liver intravoxel incoherent motion (IVIM) data more accurately than conventional bi-exponential models. However, voxel-wise fitting of IVIM results in noisy
Marian A. Troelstra, Anne-Marieke Van Dijk, Julia J. Witjes, Anne Linde Mak, Diona Zwirs, Jurgen H. Runge, Joanne Verheij, Ulrich H. Beuers, Max Nieuwdorp, Adriaan G. Holleboom, Aart J. Nederveen, Oliver J. Gurney-Champion   +11 more
doaj   +1 more source

Diagnostic performance of intravoxel incoherent motion diffusion-weighted imaging and dynamic contrast-enhanced MRI for assessment of anal fistula activity. [PDF]

PLoS ONE, 2018
To evaluate intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) sequences for quantitative characterization of anal fistula activity.This retrospective study was ...
Philippe Lefrançois, Mathieu Zummo-Soucy, Damien Olivié, Jean-Sébastien Billiard, Guillaume Gilbert, Juliette Garel, Emmanuel Visée, Perrine Manchec, An Tang   +8 more
doaj   +1 more source

Perfusion-driven Intravoxel Incoherent Motion (IVIM) MRI in Oncology: Applications, Challenges, and Future Trends [PDF]

, 2021
Recent developments in MR hardware and software have allowed a surge of interest in intravoxel incoherent motion (IVIM) MRI in oncology. Beyond diffusion-weighted imaging (and the standard apparent diffusion coefficient mapping most commonly used ...
Iima, Mami
core   +1 more source

Combined intravoxel incoherent motion diffusion-weighted MR imaging and magnetic resonance spectroscopy in differentiation between osteoporotic and metastatic vertebral compression fractures

Journal of Orthopaedic Surgery and Research, 2019
Purpose Our purpose was to combine intravoxel incoherent motion diffusion-weighted MR imaging (IVIM-DWI) and magnetic resonance spectroscopy (MRS) to differentiate osteoporotic fractures from osteolytic metastatic vertebral compression fractures (VCFs ...
Hui Tan, Hui Xu, Feifei Luo, Zhaoguo Zhang, Zhen Yang, Nan Yu, Yong Yu, Shaoyu Wang, Qiuju Fan, Yue Li   +9 more
doaj   +1 more source

Weight reduction and treatment adherence with tirzepatide using the Individualized Virtual Integrative Medicine (IVIM) protocol

Obesity Pillars
Introduction: Obesity and its downstream effects continue to drive rising rates of chronic disease. Tirzepatide, a dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist, has shown significant ...
Jessica Duncan, Patrick Lee Stevens, Emily Bigby, Courtney Floyd, Josh Malina, Jennifer Nickens, Amber Lambert, Taylor Kantor   +7 more
doaj   +1 more source