Results 51 to 60 of about 167,870,404 (256)

MPI region of interest (ROI) analysis and quantification of iron in different volumes

open access: yes, 2022
MPI directly detects superparamagnetic iron oxides (SPIOs), which should enable precise, accurate and linear quantification. However, selecting a region of interest (ROI) has strong effects on MPI quantification results.
Tiret, Brice   +5 more
core   +1 more source

A Hybrid Region-Based Approach for Image Steganography

open access: yesZanco Journal of Pure and Applied Sciences
Steganography is the process of embedding a hidden message in a cover that is undetectable to unknown receivers. Since digital images have a high degree of redundancy that can be utilized for concealing a message, image steganography has been one of the ...
Shang Masood Abdullah   +1 more
doaj   +1 more source

Performance Evaluation of rPPG Approaches with and without the Region-of-Interest Localization Step

open access: yesApplied Sciences, 2021
Traditionally, the first step in physiological measurements based on remote photoplethysmography (rPPG) is localizing the region of interest (ROI) that contains a desired pulsatile information. Recently, approaches that do not require this step have been
Žan Pirnar   +2 more
doaj   +1 more source

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani   +10 more
wiley   +1 more source

Region-of-interest cone-beam computed tomography [PDF]

open access: yes, 1995
A methodology for solving the general cone-beam region-of-interest (ROI) problem on a circular trajectory is presented using the mathematical framework described by Grangeat.
Rizo, P., Azevedo, S., Grangeat, P.
core   +1 more source

DEHA-Net: A Dual-Encoder-Based Hard Attention Network with an Adaptive ROI Mechanism for Lung Nodule Segmentation

open access: yesSensors, 2023
Measuring pulmonary nodules accurately can help the early diagnosis of lung cancer, which can increase the survival rate among patients. Numerous techniques for lung nodule segmentation have been developed; however, most of them either rely on the 3D ...
Muhammad Usman, Yeong-Gil Shin
doaj   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran   +13 more
wiley   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou   +16 more
wiley   +1 more source

IoMT Privacy Preservation: A Hash-Based DCIWT Approach for Detecting Tampering in Medical Data

open access: yesIEEE Access
Smart Healthcare has brought advantages to both healthcare professionals and individuals living in remote areas. However, deliberately or inadvertently altering medical records can result in an inaccurate diagnosis.
Ch. Rupa   +6 more
doaj   +1 more source

Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird   +9 more
wiley   +1 more source

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