Results 91 to 100 of about 1,191,105 (198)

Systematic analysis of the intravoxel incoherent motion threshold separating perfusion and diffusion effects: Proposal of a standardized algorithm [PDF]

, 2014
PURPOSE To systematically evaluate the dependence of intravoxel-incoherent-motion (IVIM) parameters on the b-value threshold separating the perfusion and diffusion compartment, and to implement and test an algorithm for the standardized computation of
Wurnig, Moritz C, Filli, Lukas, Thoeny, Harriet C, Ulbrich, Erika, Donati, Olivio F, Thöny, Harriet C., Kenkel, David, Boss, Andreas   +7 more
core   +1 more source

Intravoxel incoherent motion (IVIM) and non-Gaussian diffusion MRI of the lactating breast

European Journal of Radiology Open, 2018
Purpose: To investigate the effect of breastfeeding on IVIM and non-Gaussian diffusion MRI in the breast. Materials and methods: An IRB approved prospective study enrolled seventeen volunteers (12 in lactation and 5 with post-weaning, range 31–43 years ...
Mami Iima, Masako Kataoka, Rena Sakaguchi, Shotaro Kanao, Natsuko Onishi, Makiko Kawai, Akane Ohashi, Katsutoshi Murata, Kaori Togashi   +8 more
doaj   +1 more source

Intravoxel Incoherent Motion-Analyse bei der Diffusionsgewichteten MRT: Therapie-Monitoring des hepatozellulären Karzinoms [PDF]

, 2019
In der vorliegenden Arbeit wurde eine Intravoxel Incoherent Motion (IVIM)-basierte Analyse in der diffusionsgewichteten Magnetresonanztomographie (DWI) ausgewertet, um das Ansprechen hepatozellulärer Karzinome (HCC) nach lokoregionaler Therapie zu ...
Pfeiffer, Anne-Kristina
core   +1 more source

Whole-body intravoxel incoherent motion imaging [PDF]

, 2021
Objectives: To investigate the technical feasibility of whole-body intravoxel incoherent motion (IVIM) imaging. Materials and Methods: Whole-body MR images of eight healthy volunteers were acquired at 3T using a spin-echo echo-planar imaging sequence ...
Wurnig, Moritz, Filli, Lukas, Luechinger, Roger, Eberhardt, Christian, Boss, Andreas, Guggenberger, Roman   +5 more
core  

A pilot study of intravoxelincoherent motion sequence forprediction ofresponse to neoadjuvant chemoradiotherapy in locally advanced rectal cancer

Zhongguo aizheng zazhi, 2017
Background and purpose: DWI is an ideal way to check the diffusion of water molecules in vivo. Apparent diffusion coefficient value derived from DWI based on a mono-exponential model does not sufficiently demonstrate the characteristics of tissue ...
孙轶群
doaj  

MRI assessment of hepatocellular carcinoma after locoregional therapy

Insights into Imaging, 2019
Liver cirrhosis and hepatocellular carcinoma (HCC) constitute one of the major causes of morbidity, mortality, and high health care costs worldwide. Multiple treatment options are available for HCC depending on the clinical status of the patient, size ...
Rasha S. Hussein, Wahid Tantawy, Yasser A. Abbas   +2 more
doaj   +1 more source

Intravoxel incoherent motion imaging using steady-state free precession.

, 1988
International audienceIVIM MR imaging is a method which generates images of diffusion and perfusion in vivo. Until now, intravoxel incoherent motion (IVIM) images have been obtained using spin-echo sequences with extragradient pulses, resulting in long ...
Le Bihan, D.
core  

Velocity‐compensated intravoxel incoherent motion of the human calf muscle

Magnetic Resonance in Medicine
AbstractPurposeTo determine whether intravoxel incoherent motion (IVIM) describes the blood perfusion in muscles better, assuming pseudo diffusion (Bihan Model 1) or ballistic motion (Bihan Model 2).MethodsIVIM parameters were measured in 18 healthy subjects with three different diffusion gradient time profiles (bipolar with two diffusion times and one
Christoph M. Stuprich, Martin Loh, Johannes T. Nemerth, Armin M. Nagel, Michael Uder, Frederik B. Laun   +5 more
openaire   +2 more sources

Intravoxel Incoherent Motion Factors Affecting Collapse and Nonunion of Osteoporotic Vertebral Fracture

Global Spine Journal
Study Design Longitudinal study. Objectives Intravoxel incoherent motion (IVIM), a magnetic resonance imaging (MRI) scanning technique that applies diffusion-weighted imaging (DWI), is effective for the quantitative assessment of malignant tumors of the ...
Izaya Ogon MD, Tsuneo Takebayashi MD, Hiroyuki Takashima PhD, Yasuhisa Abe MD, Hiroshi Oguma MD, Rui Imamura RT, Yoshihiro Akatsuka RT, Tomonori Morita MD, Atsushi Teramoto MD   +8 more
doaj   +1 more source

Image acquisition for intravoxel incoherent motion imaging of kidneys should be triggered at the instant of maximum blood velocity: evidence obtained with simulations and in vivo experiments

, 2019
To demonstrate that diffusion-weighted images should be acquired at the instant of maximum blood velocity in kidneys to extract the perfusion fraction (PF) by the bi-exponential intravoxel incoherent motion ...
Kanemitsu, Michiko, Jean‐Baptiste Ledoux, Michel Burnier, Rotzinger, D.C., Kanemitsu, M., David C. Rotzinger, Menno Pruijm, Pruijm, Menno, Ledoux, J.B., Rotzinger, David C, Vallée, Jean-Paul, Vallée, J.P., Jean‐Paul Vallée, Burnier, Michel, Bastien Milani, Milani, Bastien, Pruijm, M., Michiko Kanemitsu, Burnier, M., Milani, B., Ledoux, Jean-Baptiste   +20 more
core   +1 more source