Rishma Vidyasagar

Structural Connectivity Remote From Lesions Correlates With Somatosensory Outcome Poststroke

Chia-Lin Koh, Chun-Hung Yeh, Xiaoyun Liang, Rishma Vidyasagar, Rudiger J Seitz, Michael Nilsson, Alan Connelly, Leeanne M Carey

Journal article  |  2021  |  STROKE

BACKGROUND AND PURPOSE: Changes in connectivity of white matter fibers remote to a stroke lesion, suggestive of structural connect..

Frequency drift in MR spectroscopy at 3T

Steve CN Hui, Mark Mikkelsen, Helge J Zollner, Vishwadeep Ahluwalia, Sarael Alcauter, Laima Baltusis, Deborah A Barany, Laura R Barlow, Robert Becker, Jeffrey Berman, Adam Berrington, Pallab K Bhattacharyya, Jakob Udby Blicher, Wolfgang Bogner, Mark S Brown, Vince D Calhoun, Ryan Castillo, Kim M Cecil, Yeo Bi Choi, Winnie CW Chu, et al.

Journal article  |  2021  |  NEUROIMAGE

PURPOSE: Heating of gradient coils and passive shim components is a common cause of instability in the B0 field, especially when g..

Correlated Resting-State Functional MRI Activity of Frontostriatal, Thalamic, Temporal, and Cerebellar Brain Regions Differentiates Stroke Survivors with High Compared to Low Depressive Symptom Scores

Peter Goodin, Gemma Lamp, Rishma Vidyasagar, Alan Connelly, Stephen Rose, Bruce C Campbell, Tamara Tse, Henry Ma, David Howells, Graeme J Hankey, Stephen Davis, Geoffrey Donnan, Leeanne M Carey

Journal article  |  2019  |  NEURAL PLASTICITY

BACKGROUND: One in three survivors of stroke experience poststroke depression (PSD). PSD has been linked with poorer recovery of f..

Altered functional connectivity differs in stroke survivors with impaired touch sensation following left and right hemisphere lesions

Peter Goodin, Gemma Lamp, Rishma Vidyasagar, David McArdle, Ruediger J Seitz, Leeanne M Carey

Journal article  |  2018  |  NEUROIMAGE-CLINICAL

One in two survivors experience impairment in touch sensation after stroke. The nature of this impairment is likely associated wit..

PO071 Mri assessment of neurovascular changes in idiopathic parkinson’s disease

Sarah Al-Bachari, Rishma Vidyasagar, Hedley Emsley, Laura Parkes

Journal article  |  2017  |  Journal of Neurology, Neurosurgery & Psychiatry

Structural and physiological neurovascular changes in idiopathic Parkinson's disease and its clinical phenotypes

Sarah Al-Bachari, Rishma Vidyasagar, Hedley CA Emsley, Laura M Parkes

Journal article  |  2017  |  JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM

Neurovascular changes are likely to interact importantly with the neurodegenerative process in idiopathic Parkinson's disease (IPD..

A Feasibility Study of Quantifying Longitudinal Brain Changes in Herpes Simplex Virus (HSV) Encephalitis Using Magnetic Resonance Imaging (MRI) and Stereology

Sylviane Defres, Simon S Keller, Kumar Das, Rishma Vidyasagar, Laura M Parkes, Girvan Burnside, Michael Griffiths, Michael Kopelman, Neil Roberts, Tom Solomon

Journal article  |  2017  |  PLOS ONE

OBJECTIVES: To assess whether it is feasible to quantify acute change in temporal lobe volume and total oedema volumes in herpes s..

The Interleukin-1 Balance During Encephalitis Is Associated With Clinical Severity, Blood-Brain Barrier Permeability, Neuroimaging Changes, and Disease Outcome.

Benedict Daniel Michael, Michael J Griffiths, Julia Granerod, David Brown, Geoff Keir, Małgorzata Wnęk, Daniel J Cox, Rishma Vidyasagar, Ray Borrow, Laura M Parkes, Tom Solomon

Journal article  |  2016  |  J Infect Dis

BACKGROUND: Encephalitis is parenchymal brain inflammation, commonly due to herpes simplex virus (HSV). Key host inflammatory medi..

Quantitative measurement of blood flow in paediatric brain tumours-a comparative study of dynamic susceptibility contrast and multi time-point arterial spin labelled MRI

Rishma Vidyasagar, Laurence Abernethy, Barry Pizer, Shivaram Avula, Laura M Parkes

Journal article  |  2016  |  BRITISH JOURNAL OF RADIOLOGY

OBJECTIVE: Arterial spin-labelling (ASL) MRI uses intrinsic blood water to quantify the cerebral blood flow (CBF), removing the ne..

SIMILARITIES IN ARTERIAL ARRIVAL TIME PROLONGATION AND POSTERIOR HYPOPERFUSION IN PATIENTS WITH IDIOPATHIC PARKINSON'S DISEASE AND STROKE

Sarah Al-Bachari, Rishma Vidyasagar, Monty Silverdale, Hedley Emsley, Laura Parkes

Journal article  |  2015  |  Journal of Neurology, Neurosurgery & Psychiatry

The relevance of impaired neurovascular function in idiopathic Parkinson's disease (IPD) is unknown. Furthermore, it is unknown wh..