Results 81 to 90 of about 41,570 (260)

Simultaneous Visualization of the Carotid and Subclavian Arteries Using Non–Contrast‐Enhanced MR Angiography With a 3D Fast Field Echo Sequence and Time‐Spatial Labeling Inversion Pulse: A Comparison With 3D Time‐of‐Flight MR Angiography

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Carotid artery stenosis is a major cause of stroke. Non‐contrast MR angiography (MRA) using time‐spatial labeling inversion pulse (Time‐SLIP) may offer potential advantages over 3D time‐of‐flight (TOF)‐MRA for simultaneous visualization of carotid, vertebral, and subclavian arteries, but remains uninvestigated.
Hitomi Numamoto   +9 more
wiley   +1 more source

Morphometric Study of Foramen Transversarium in Dried Cervical Vertebrae: A Cross-sectional Osteological Study in Eastern Indian Population [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery
Introduction: The Foramen Transversarium (FT), located in the transverse process of cervical vertebrae, is a key feature for the identification of cervical vertebrae. These foramina vary in size, shape and number, and they may even be absent.
Jaya Banerjee   +7 more
doaj   +1 more source

Sonographic Anatomy and Imaging of the Extracranial Component of the Hypoglossal Nerve (CNXII)

open access: yesJournal of Medical Radiation Sciences, EarlyView.
The hypoglossal nerve (HN) provides motor innervation to tongue muscles responsible for tongue movement, speech, mastication, swallowing, respiratory functions and management of oral secretions. The intracranial component of the HN can be demonstrated on magnetic resonance imaging and the extracranial component can be demonstrated with sonographic ...
Michelle Fenech   +4 more
wiley   +1 more source

Small‐ to medium‐sized mammals show greater morphological disparity in cervical than lumbar vertebrae across different terrestrial modes of locomotion

open access: yesEcology and Evolution
During mammalian terrestrial locomotion, body flexibility facilitated by the vertebral column is expected to be correlated with observed modes of locomotion, known as gait (e.g., sprawl, trot, hop, bound, gallop).
Nuttakorn Taewcharoen   +2 more
doaj   +1 more source

A variant of Jefferson like fracture at C7 vertebrae without any sensory deficit in a traumatic sub-axial cervical spondylolisthesis [PDF]

open access: hybrid, 2023
Chava Aravind Kumar   +5 more
openalex   +1 more source

Analysis of the Justification for Spinal Computed Tomography (CT) Scans Performed in Togo

open access: yesJournal of Medical Radiation Sciences, EarlyView.
The undeniable benefits of irradiating examinations such as CT scans should not overshadow their potential harmful effects, particularly late risks. Hence it is important to justify CT scans requested for patients. This study revealed that a significant number of spinal CT scans performed in developing countries such as Togo were not a priori justified,
Kokou Adambounou   +5 more
wiley   +1 more source

Fabric on fabric: A conductive fabric‐based wearable coil using cutting plotter for MRI at 3T

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Wearable coils fabricated using conductive threads have high resistance that limits SNR. The purpose of this work is to demonstrate the utility of conductive fabric as a coil conductor that can be fabricated using a cutting plotter.
Thejas Vishnu Ramesh   +5 more
wiley   +1 more source

Ex vivo human brain volumetry: Validation of MRI measurements

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose The volume of in vivo human brains is determined with various MRI measurement tools that have not been assessed against a gold standard. The purpose of this study was to validate the MRI brain volumes by scanning ex vivo, in situ specimens, which allows the extraction of the brain after the scan to compare its volume with the gold ...
Amy Gérin‐Lajoie   +7 more
wiley   +1 more source

Non‐Contrast Assessment of Blood–Brain Barrier Permeability to Water: Improved Signal Modeling and Data Acquisition

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Water‐extraction‐with‐phase‐contrast‐arterial‐spin‐tagging (WEPCAST) MRI is a non‐contrast method to estimate the blood–brain barrier (BBB) permeability to water. Similar to other arterial‐spin‐labeling (ASL) based techniques, signal‐to‐noise ratio is a limitation.
Wen Shi   +11 more
wiley   +1 more source

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