Results 91 to 100 of about 4,576 (213)

Intravoxel incoherent motion perfusion in patients with Moyamoya disease: comparison with O-gas positron emission tomography

Acta Radiologica Open, 2019
Background Intravoxel incoherent motion magnetic resonance imaging (IVIM) enables non-invasive measurement of brain perfusion. Purpose To investigate whether IVIM could be used to evaluate the hemodynamic disturbance of Moyamoya disease (MMD) by ...
Shoko Hara, Masaaki Hori, Ryo Ueda, Akifumi Hagiwara, Shihori Hayashi, Motoki Inaji, Yoji Tanaka, Taketoshi Maehara, Kenji Ishii, Shigeki Aoki, Tadashi Nariai   +10 more
doaj   +1 more source

IVIM : modélisation, validation expérimentale et application à des modèles animaux

, 2016
Cette thèse porte sur l’étude de la séquence d’imagerie IRM IVIM (« Intravoxel incoherent motion »). Cette séquence permet l’étude des microvaisseaux sanguins tels que les capillaires, artérioles et veinules.
Fournet, Gabrielle
core  

Intravoxel incoherent motion MRI in neurological and cerebrovascular diseases

NeuroImage: Clinical, 2018
Intravoxel Incoherent Motion (IVIM) is a recently rediscovered noninvasive magnetic resonance imaging (MRI) method based on diffusion-weighted imaging. It enables the separation of the intravoxel signal into diffusion due to Brownian motion and perfusion-
André M. Paschoal, Renata F. Leoni, Antonio C. dos Santos, Fernando F. Paiva   +3 more
doaj   +1 more source

Intravoxel Incoherent Motion (IVIM) Imaging at Different Magnetic Field Strengths: What is Feasible?

, 2014
Due to limited SNR the cerebral applications of the intravoxel incoherent motion (IVIM) concept have been sparse. MRI hardware developments have resulted in improved SNR and this may justify a reassessment of IVIM imaging for non-invasive quantification ...
Wirestam, Ronnie,, Ståhlberg, Freddy,, Scherman Rydhög, Anna,, Nilsson, Markus,, van Osch, Matthias J P, Lind, Emelie,, Lätt, Jimmy,, Knutsson, Linda,, Lund University.   +8 more
core   +2 more sources

Clinical utility and reproducibility of intravoxel incoherent motion MRI in rectal cancer: a structured narrative review

Frontiers in Medicine
IntroductionMagnetic resonance imaging (MRI) is a crucial imaging modality for the management of rectal cancer. Conventional MRI provides detailed anatomical information but has a limited capacity to evaluate tumor biology.
Ali S. Alyami, Meaad Elbashir, Sara Ali, Turkey Refaee, Wael Ageeli, Bandar Alwadani, Naif A. Majrashi, Abdullah A. Althobity   +7 more
doaj   +1 more source

Image denoising and model-independent parameterization for IVIM MRI

Physics in Medicine & Biology
Abstract Objective . To improve intravoxel incoherent motion imaging (IVIM) magnetic resonance Imaging quality using a new image denoising technique and model-independent parameterization of the signal versus b -value curve. Approach
Caleb Sample, Jonn Wu, Haley Clark
openaire   +2 more sources

Image denoising and model-independent parameterization for improving IVIM MRI [PDF]

Variability of IVIM parameters throughout the literature is a long-standing issue, and perfusion-related parameters are difficult to interpret. We demonstrate for improving the analysis of intravoxel incoherent motion imaging (IVIM) magnetic resonance ...
Sample, Caleb, Clark, Haley, Wu, Jonn
core   +1 more source

Hybrid intravoxel incoherent motion–diffusion kurtosis imaging in brain MRI: A scoping review of applications, insights, and emerging directions

Journal of Magnetic Resonance Open
Intravoxel incoherent motion (IVIM) and diffusion kurtosis imaging (DKI) are advanced diffusion MRI techniques that respectively characterize microvascular perfusion and non-Gaussian diffusion.
Abhijith S, Saikiran Pendem, Rajagopal Kadavigere, Priyanka, Priya P․ S․, Dharmesh Singh   +5 more
doaj   +1 more source

IVIM : modeling, experimental validation and application to animal models

, 2016
This PhD thesis is centered on the study of the IVIM (“Intravoxel Incoherent Motion”) MRI sequence. This sequence allows for the study of the blood microvasculature such as the capillaries, arterioles and venules. To be sensitive only to moving groups of
Fournet, Gabrielle
core  

IVIM DW-MRI of autoimmune pancreatitis: therapy monitoring and differentiation from pancreatic cancer.

, 2016
OBJECTIVES To evaluate IVIM DW-MRI for changes in IVIM-derived parameters during steroid treatment of autoimmune pancreatitis (AIP) and for the differentiation from pancreatic cancer (PC).
Grenacher L, Stieltjes B, Klauß M, Maier-Hein K, Tjaden C, Hackert T   +5 more
core   +1 more source