scholarly journals Normal white matter development from infancy to adulthood: Comparing diffusion tensor and high b value diffusion weighted MR images

2005 ◽  
Vol 21 (5) ◽  
pp. 503-511 ◽  
Author(s):  
Dafna Ben Bashat ◽  
Liat Ben Sira ◽  
Moshe Graif ◽  
Pazit Pianka ◽  
Talma Hendler ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
B Value ◽  
Mr Images ◽  
High B Value ◽  
Diffusion Weighted ◽  
White Matter Development ◽  
Normal White Matter

High b-value diffusion-weighted imaging: A sensitive method to reveal white matter differences in schizophrenia

2012 ◽  
Vol 201 (2) ◽  
pp. 144-151 ◽  
Author(s):  
Philipp Sebastian Baumann ◽  
Leila Cammoun ◽  
Philippe Conus ◽  
Kim Quang Do ◽  
Pierre Marquet ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Weighted Imaging ◽  
B Value ◽  
High B Value ◽  
Diffusion Weighted ◽  
Sensitive Method

Fusion of high B-value diffusion-weighted and T2-weighted MR images increases sensitivity for identification of extraprostatic disease in prostate cancer

2020 ◽  
Vol 68 ◽  
pp. 202-209
Author(s):  
Stephanie D. Colvin ◽  
Daniel E. Cason ◽  
Samuel J. Galgano ◽  
Benjamin L. Triche ◽  
Jennifer Gordetsky ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
B Value ◽  
Mr Images ◽  
High B Value ◽  
Diffusion Weighted ◽  
Extraprostatic Disease

scholarly journals Diffusion Tensor Model links to Neurite Orientation Dispersion and Density Imaging at high b-value in Cerebral Cortical Gray Matter

2018 ◽  
Author(s):  
Hikaru Fukutomi ◽  
Matthew F. Glasser ◽  
Katsutoshi Murata ◽  
Thai Akasaka ◽  
Koji Fujimoto ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Diffusion Tensor ◽  
B Value ◽  
Tensor Model ◽  
Diffusion Weighted Mri ◽  
High B Value ◽  
Diffusion Weighted ◽  
Human Connectome Project ◽  
Fluid Fraction ◽  
Cortical Gray Matter

AbstractDiffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI) are widely used models to infer microstructural features in the brain from diffusion-weighted MRI. Several studies have recently applied both models to increase sensitivity to biological changes, however, it remains uncertain how these measures are associated. Here we show that cortical distributions of DTI and NODDI are associated depending on the choice of b-value, a factor reflecting strength of diffusion weighting gradient. We analyzed a combination of high, intermediate and low b-value data of multi-shell diffusion-weighted MRI (dMRI) in healthy 456 subjects of the Human Connectome Project using NODDI, DTI and a mathematical conversion from DTI to NODDI. Cortical distributions of DTI and DTI-derived NODDI metrics were remarkably associated with those in NODDI, particularly when applied highly diffusion-weighted data (b-value =3000 sec/mm2). This was supported by simulation analysis, which revealed that DTI-derived parameters with lower b-value datasets suffered from errors due to heterogeneity of cerebrospinal fluid fraction and partial volume. These findings suggest that high b-value DTI redundantly parallels with NODDI-based cortical neurite measures, but the conventional low b-value DTI does not reasonably characterize cortical microarchitecture.

Fused high b-value diffusion weighted and T2-weighted MR images in staging of pediatric Hodgkin’s lymphoma: A pilot study

2019 ◽  
Vol 121 ◽  
pp. 108737
Author(s):  
Suzanne Spijkers ◽  
Rutger A.J. Nievelstein ◽  
Bart de Keizer ◽  
Marrie C.A. Bruin ◽  
Annemieke S. Littooij
Keyword(s):  
Pilot Study ◽  
Hodgkin’S Lymphoma ◽  
B Value ◽  
Hodgkin's Lymphoma ◽  
Mr Images ◽  
High B Value ◽  
Diffusion Weighted ◽  
Pediatric Hodgkin’S Lymphoma

scholarly journals Brain Reserve in a Case of Cognitive Resilience to Severe Leukoaraiosis

2020 ◽  
pp. 1-10
Author(s):  
Dana M. Szeles ◽  
Nicholas J. Milano ◽  
Hunter J. Moss ◽  
Maria Vittoria Spampinato ◽  
Jens H. Jensen ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Mri ◽  
Diffusion Tensor ◽  
Imaging Finding ◽  
B Value ◽  
Brain Reserve ◽  
High B Value ◽  
Positive Antibody ◽  
The Face ◽  
Magnetic Resonance Imaging Mri

Abstract Objective: Leukoaraiosis, or white matter rarefaction, is a common imaging finding in aging and is presumed to reflect vascular disease. When severe in presentation, potential congenital or acquired etiologies are investigated, prompting referral for neuropsychological evaluation in addition to neuroimaging. T2-weighted imaging is the most common magnetic resonance imaging (MRI) approach to identifying white matter disease. However, more advanced diffusion MRI techniques may provide additional insight into mechanisms that influence the abnormal T2 signal, especially when clinical presentations are discrepant with imaging findings. Method: We present a case of a 74-year-old woman with severe leukoaraoisis. She was examined by a neurologist, neuropsychologist, and rheumatologist, and completed conventional (T1, T2-FLAIR) MRI, diffusion tensor imaging (DTI), and advanced single-shell, high b-value diffusion MRI (i.e., fiber ball imaging [FBI]). Results: The patient was found to have few neurological signs, no significant cognitive impairment, a negative workup for leukoencephalopathy, and a positive antibody for Sjogren’s disease for which her degree of leukoaraiosis would be highly atypical. Tractography results indicate intact axonal architecture that was better resolved using FBI rather than DTI. Conclusions: This case illustrates exceptional cognitive resilience in the face of severe leukoaraiosis and the potential for advanced diffusion MRI to identify brain reserve.

Age-related white matter changes in high b-value q-space diffusion-weighted imaging

2012 ◽  
Vol 55 (3) ◽  
pp. 253-259 ◽  
Author(s):  
Zareen Fatima ◽  
Utaroh Motosugi ◽  
Masaaki Hori ◽  
Toshiyuki Onodera ◽  
Keiichi Ishigame ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Weighted Imaging ◽  
B Value ◽  
White Matter Changes ◽  
High B Value ◽  
Diffusion Weighted ◽  
Age Related

High b value diffusion-weighted imaging is more sensitive to white matter degeneration in Alzheimer's disease

NeuroImage ◽  
2003 ◽  
Vol 20 (1) ◽  
pp. 413-419 ◽  
Author(s):  
Takashi Yoshiura ◽  
Futoshi Mihara ◽  
Atsuo Tanaka ◽  
Koji Ogomori ◽  
Yasumasa Ohyagi ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
White Matter ◽  
Diffusion Weighted Imaging ◽  
B Value ◽  
High B Value ◽  
Diffusion Weighted ◽  
White Matter Degeneration
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