Towards direct imaging of neuronal currents with MRI. This project aims to develop novel neuronal current magnetic resonance imaging (nc-MRI) methods that harness the oscillatory behaviour of neuronal magnetic fields. Current methods of detecting neuronal activity in the living human brain have limited spatial and temporal resolution. Use of nc-MRI aims to overcome these limitations by imaging the effects on the MRI signal of small transient magnetic fields associated with neuronal activity. Sig ....Towards direct imaging of neuronal currents with MRI. This project aims to develop novel neuronal current magnetic resonance imaging (nc-MRI) methods that harness the oscillatory behaviour of neuronal magnetic fields. Current methods of detecting neuronal activity in the living human brain have limited spatial and temporal resolution. Use of nc-MRI aims to overcome these limitations by imaging the effects on the MRI signal of small transient magnetic fields associated with neuronal activity. Signal-to-noise ratio is at the limits of detectability using current imaging systems and nc-MRI is yet to be convincingly demonstrated. An integrated framework for simulating nc-MRI in the visual cortex is expected to be developed.Read moreRead less
Advances in positron emission tomography now allow specific pathological features of many brain diseases such as Alzheimer's disease to be measured with a brain scan during life. This Fellowship will assist Professor Rowe and his team in their world leading work on new PET scanning techniques to improve diagnosis and assist the development of treatment for Alzheimer's and other degenerative diseases of the brain.
We have previously made the most widely used animal brain atlas in the world. This atlas based on stained histological sections of the rat brain. In recent years, advances in MRI have made it possible to generate images of the rat brain at very high resolution. We have obtained a very high quality MRI image set from colleagues in Duke University in the USA, and we have begun to map these images in great detail, using our histological atlas as a guide.
Imaging Of Acute Ischemic Stroke – Improving Patient Selection For Thrombolysis
Funder
National Health and Medical Research Council
Funding Amount
$367,946.00
Summary
Stroke is a major cause of death and disability in our community and is most often due to a blocked blood vessel. Powerful treatments are available to open blocked blood vessels but there are restrictions on eligibility and some risks. This research aims to improve doctors' understanding of stroke in the individual patient to aid treatment decisions by identifying those with potentially salvageable brain tissue and avoiding those with high risk of bleeding complications.
Brainstem And Hypothalamic Function And Anatomy In Migraine
Funder
National Health and Medical Research Council
Funding Amount
$652,828.00
Summary
Migraine is a disabling condition characterized by mostly unilateral throbbing head pain and a range of associated neurological symptoms. The underlying mechanisms responsible for the initiation of migraine remains unknown. We aim to determine brain anatomy and activity patterns in migraineurs throughout the migraine cycle. An understanding of the mechanisms responsible for migraine will aid in better treatment development.
EXTEND-IA Randomized Trial Of Intra-arterial Clot Retrieval In Ischemic Stroke
Funder
National Health and Medical Research Council
Funding Amount
$764,534.00
Summary
Most strokes are caused by a blocked blood vessel in the brain. Current treatments to dissolve the blockage improve recovery for many patients but often fail to unblock larger brain arteries. The EXTEND-IA trial will use advanced brain imaging to identify patients who have the most to gain if the blocked artery can be re-opened. The trial will test whether a new minimally invasive clot removal procedure performed after standard clot-dissolving treatment improves recovery after stroke.
High-resolution Brain Imaging Of Basal Ganglia Function
Funder
National Health and Medical Research Council
Funding Amount
$589,083.00
Summary
This project will develop new methods for high resolution MRI imaging of the human brain. We will assess functions of deep brain areas known as the basal ganglia that play a critical role in movement planning and co-ordination. Dysfunction within the basal ganglia is responsible for the motor impairments seen in people with Parkinson’s disease. In this project, we will examine changes in basal ganglia function and structure that lead to individual differences in movement control and learning.
Selective Modulation Of Corticostriatal Functional Circuitry Using TMS-fMRI
Funder
National Health and Medical Research Council
Funding Amount
$757,546.00
Summary
This project will validate a novel brain imaging-based method for targeted and non-invasive stimulation of specific brain circuits that play an important role in diverse cognitive, emotional and motor functions. The ability to selectively up-regulate or down-regulate activity in these circuits will have far-reaching treatment implications for a wide range of brain disorders.
The Clinical Features, Causes And Diagnosis Of Severe Epilepsies Of Infancy: A Population-based Study
Funder
National Health and Medical Research Council
Funding Amount
$227,261.00
Summary
Severe epilepsies of infancy (SEI) are characterised by frequent seizures and are often resistant to treatment. The prognosis is typically poor. The cause is unknown in many infants. This study will identify genes and brain malformations causing SEI, determine the frequency and clinical features of each cause, and measure the diagnostic yield of genetic testing and brain imaging. The findings will improve timely diagnosis of SEI and guide research priorities for development of novel therapies.
Precision Medicine For Epilepsy And Beyond: From Discovery To Implementation And Evaluation
Funder
National Health and Medical Research Council
Funding Amount
$487,891.00
Summary
The theme of this Fellowship is to improve treatment outcomes using a genomic-based Precision Medicine approach. This goal will be achieved by 3 closely linked projects that harness the power of gene sequencing and advances in biosensor technology, coupled with careful clinical and health economic evaluation. While the emphasis is on epilepsy, the research will extend to other major disease areas of global health significance. The potential socioeconomic impact of these innovations is enormous.