Results 61 to 70 of about 182,408 (279)

Nonrigid Registration of Prostate Diffusion-Weighted MRI [PDF]

open access: yesJournal of Healthcare Engineering, 2017
Motion and deformation are common in prostate diffusion-weighted magnetic resonance imaging (DWI) during acquisition. These misalignments lead to errors in estimating an apparent diffusion coefficient (ADC) map fitted with DWI. To address this problem, we propose an image registration algorithm to align the prostate DWI and improve ADC map.
Lei Hao   +4 more
openaire   +2 more sources

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi   +2 more
wiley   +1 more source

Diffusion-weighted MRI in acute spinal cord ischaemia [PDF]

open access: yes, 2018
: Acute spinal cord ischaemia is often undetectable with conventional MRI. Diffusion-weighted MRI (DWI) has been difficult to use in the spine because of susceptibility artefacts.
Arnold, M.   +9 more
core  

Sequential Acquisition and Processing of Perfusion and Diffusion MRI Data for a Porcine Stroke Model [PDF]

open access: yes, 2005
An automated data processing pipeline, designed for handling a large throughput of sequentially acquired MRI brain data, is described. The system takes as input multiple diffusion weighted (DWI) and perfusion weighted imaging (PWI) volumes acquired at ...
Dashnaw, Stephen   +4 more
core   +2 more sources

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung   +7 more
wiley   +1 more source

Diffusion-weighted MRI: Role in diagnosing hepatic focal lesions

open access: yesJournal of Medicine in Scientific Research, 2019
Objective The objective of this study was to highlight the role of quantitative and qualitative diffusion-weighted MRI (DW-MRI) in differentiating benign and malignant hepatic focal lesions, thus increasing the efficacy of conventional hepatic MRI, in ...
Manal A El-Refaei   +3 more
doaj   +1 more source

Small solid renal masses: Characterization by diffusion-weighted MRI at 3 T [PDF]

open access: yes, 2013
AIM: To describe the appearance of small solid renal lesions ( 643 cm) on diffusion-weighted magnetic resonance imaging (MRI) and to determine whether ADC measurements may help to differentiate benign from malignant small solid renal masses.
Agnello, F.   +6 more
core   +1 more source

Variably Protease‐Sensitive Prionopathy: Two New Cases With Motor Neuron‐Dementia Syndrome

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We describe two patients with variably protease‐sensitive prionopathy (VPSPr) who developed progressive upper motor neuron symptoms, insomnia, behavioral and cognitive decline, compatible with primary lateral sclerosis associated with frontotemporal dementia (FTD).
María Elena Erro   +10 more
wiley   +1 more source

Sensitivity of different MRI sequences in the early detection of melanoma brain metastases. [PDF]

open access: yesPLoS ONE, 2018
After the emergence of new MRI techniques such as susceptibility- and diffusion-weighted imaging (SWI and DWI) and because of specific imaging characteristics of melanoma brain metastases (MBM), it is unclear which MRI sequences are most beneficial for ...
Katerina Deike-Hofmann   +9 more
doaj   +1 more source

Ensemble tractography [PDF]

open access: yes, 2016
Fiber tractography uses diffusion MRI to estimate the trajectory and cortical projection zones of white matter fascicles in the living human brain. There are many different tractography algorithms and each requires the user to set several parameters ...
Caiafa, César Federico   +3 more
core   +3 more sources

Home - About - Disclaimer - Privacy