Browsing Physics (Scholarly Publications) by Author "FAGAN, ANDREW"
Now showing items 1-11 of 11
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Assessment of the accuracy of an ultrasound elastography liver scanning system using a PVA-cryogel phantom with optimal acoustic and mechanical properties
FAGAN, ANDREW (2010)The accuracy of a transient elastography liver-scanning ultrasound system was assessed using a novel application of PVA-cryogel as a tissue-mimicking material with acoustic and shear elasticity properties optimized to ... -
Comparative Imaging Study in Ultrasound, MRI, CT and DSA using a Multi-Modality Renal Artery Phantom
FAGAN, ANDREW (2011)Purpose: A range of anatomically-realistic multi-modality renal artery phantoms consisting of vessels with varying degrees of stenosis was developed and evaluated using four imaging techniques currently used to detect renal ... -
A double-tuned 1H/23Na dual resonator system for tissue sodium concentration measurements in the rat brain via Na-MRI
FAGAN, ANDREW; WETTERLING, FRIEDRICH (2010)A method for quantifying the Tissue Sodium Concentration (TSC) in the rat brain from 23Na-MR images was developed. TSC is known to change in a variety of common human diseases and holds considerable potential to contribute ... -
A Double-Tuned 1H/23Na Two Element Phased Array System for In Vivo 23Na Magnetic Resonance Microscopy at 7 T
WETTERLING, FRIEDRICH; FAGAN, ANDREW (2010)Accurate identification of the potentially salvageable ischaemic penumbra is critical in identifying stroke patients who will benefit from thrombolysis and in designing future clinical trials of potential neuroprotectants. ... -
How can Sodium MRI techniques help us understand acute stroke?
FAGAN, ANDREW (2012)This article addresses the potential usefulness of sodium MRI in the acute phase of stroke, asking whether the additional time required to acquire high quality sodium images is justified in the time-critical minutes following ... -
Non-Invasive and Temporally Resolved Measurement of Ischaemic Tissue Damage in Acute Stroke Using Quantitative 23Na Magnetic Resonance Microscopy at 7 T
WETTERLING, FRIEDRICH; FAGAN, ANDREW (2010)The aim of this study was to define a quantifiable parameter which would allow for the classification of still-viable penumbra and irreversibly damaged (ischaemic core) tissue after Middle Cerebral Artery Occlusion (MCAO) ... -
Novel tissue mimicking materials for high frequency breast ultrasound applications
FAGAN, ANDREW (2011)The development and acoustical characterisation of a range of novel agar-based tissue mimicking material (TMMs) for use in clinically relevant, quality assurance (QA) and anthropomorphic breast phantoms are presented. ... -
The Quantification of Tissue Sodium Concentration using 23Na-Magnetic Resonance Microscopy at 7 T: Probing the Acute Stroke Phase
WETTERLING, FRIEDRICH; FAGAN, ANDREW (2010)Accurate identification of the potentially salvageable ischaemic penumbra is critical in identifying stroke patients who will benefit from thrombolysis and in designing future clinical trials of potential neuroprotectants. ... -
Regional and temporal variations in tissue sodium concentration during the acute stroke phase
WETTERLING, FRIEDRICH; FAGAN, ANDREW (2012)A technique for noninvasively quantifying the concentration of sodium (23Na) ions was applied to the study of ischemic stroke. 23Na-magnetic resonance imaging techniques have shown considerable potential for measuring ... -
Review of ultrasound elastography quality control and training test phantoms
FAGAN, ANDREW; COURNANE, SEAN (2012)While the rapid development of ultrasound elastography techniques in recent decades has sparked its prompt implementation in the clinical setting adding new diagnostic information to conventional imaging techniques, questions ... -
Spinal cord markers in ALS - diagnostic and biomarker considerations
FAGAN, ANDREW; HARDIMAN, ORLA (2012)Background: Despite considerable involvement of the spinal cord in Amyotrophic Lateral Sclerosis (ALS), current biomarker research is primarily centred on brain imaging and CSF proteomics. In clinical practice, spinal ...