Differentiating Brain Metastasis and High‐Grade Glioma Using Multi‐b Value Diffusion MRI and Tumor Volumetry

by Clinical Neuropsychologist | Thursday, November 13, 2025 | Neuroimaging

ABSTRACT Background and Purpose To evaluate feasibility of multi-b value diffusion magnetic resonance imaging (MRI) and volumetry in differentiating between brain metastases and high-grade gliomas (HGGs) while producing a differentiation tool. Methods Preoperative...

Perfusion Territory Shifts in Cerebrovascular Diseases Measured by Super‐Selective Arterial Spin Labeling

by Clinical Neuropsychologist | Thursday, November 13, 2025 | Neuroimaging

ABSTRACT Background and Purpose Individualized diagnostic approaches are crucial in cerebrovascular diseases, such as internal carotid artery stenosis (ICAS). To evaluate individual collateral blood supply, vessel-selective imaging has gained high relevance. However,...

Diffusion Tensor Imaging Reveals Altered Centrality of Pain‐Related Regions in SCN9A‐Associated Small Fiber Neuropathy

by Clinical Neuropsychologist | Tuesday, November 11, 2025 | Neuroimaging

ABSTRACT Background and Purpose Small fiber neuropathy (SFN) is a neuropathic disorder that is associated with chronic pain. While most SFN cases are idiopathic, SFN can also have hereditary causes. For example, rare SCN9A gene mutations can impair the NaV1.7 sodium...

Distinguishing Myo‐Inositol From Glycine in Brain MRS at 3T: A Pitfall Using Intermediate Echo Times

by Clinical Neuropsychologist | Tuesday, November 11, 2025 | Neuroimaging

ABSTRACT Background and Purpose In in vivo magnetic resonance spectroscopy (MRS) of the brain, glycine (Gly) is traditionally separated from the overlapping signal of myo-inositol (mI) through the use of intermediate (e.g., 130–140 ms) or long (270–280 ms) echo times...

Assessing a Stimulator Modification for Simultaneous Noninvasive Auricular Vagus Nerve Stimulation and MRI

by Clinical Neuropsychologist | Friday, November 7, 2025 | Neuroimaging

ABSTRACT Background and Purpose The vagus nerve can be stimulated noninvasively at the ear using transcutaneous auricular vagus nerve stimulation (taVNS). Concurrent functional MRI (fMRI) permits study of taVNS-induced changes in brain dynamics, a key requisite for...

Diagnostic Accuracy of Neuromuscular Ultrasound for Carpal Tunnel Syndrome: A Real‐World Study

by Clinical Neuropsychologist | Tuesday, November 4, 2025 | Neuroimaging

ABSTRACT Background and Purpose To determine the diagnostic accuracy of median nerve ultrasound in suspected cases of carpal tunnel syndrome (CTS) in a prospective, real-world study. Methods This prospective study was carried out over one year at Roy Neuro Care...