Dynamic In Vivo Size & Shape Measurement Of The Human Upper Airway Using Endoscopic Long-range Optical Coherence Tomogra
Funder
National Health and Medical Research Council
Funding Amount
$184,250.00
Summary
This project will fund the construction of a clinically deployable prototype device to measure changes in upper airway size and shape in patients with obstructive sleep apnoea. We have recently developed and validated a technique based on endoscopic optical coherence tomography (OCT). Preliminary in vivo studies have been performed in the human upper airway and the results published. To our knowledge, this is the only such system world-wide capable of making these important measurements. The tec ....This project will fund the construction of a clinically deployable prototype device to measure changes in upper airway size and shape in patients with obstructive sleep apnoea. We have recently developed and validated a technique based on endoscopic optical coherence tomography (OCT). Preliminary in vivo studies have been performed in the human upper airway and the results published. To our knowledge, this is the only such system world-wide capable of making these important measurements. The technique has wide commercially applicability as it can be used to measure the internal dimensions of any hollow organ system.Read moreRead less
Development Of Quantitative Tools For Assessment Of Regional Cardiac Function By Echocardiography
Funder
National Health and Medical Research Council
Funding Amount
$209,430.00
Summary
The application of ultrasound imaging to the assessment of cardiac function (echocardiography) is an invaluable tool for the assessment of patients with known or suspected cardiac problems. The assessment of contraction in each region of the heart is probably the most important of the reasons for doing this test, as regional function is disturbed in patients with coronary artery disease, which is one of the most common causes of death in Australia. The problem is that this analysis is currently ....The application of ultrasound imaging to the assessment of cardiac function (echocardiography) is an invaluable tool for the assessment of patients with known or suspected cardiac problems. The assessment of contraction in each region of the heart is probably the most important of the reasons for doing this test, as regional function is disturbed in patients with coronary artery disease, which is one of the most common causes of death in Australia. The problem is that this analysis is currently completely subjective, and the reliability of the tool is based upon the availability of an experienced observer. This is particularly a problem in rural Australia, as most specialists with expertise in this modality work in the capital cities, and especially a problem in Queensland, where fewer than half of the population live in the capital. The cardiac imaging group at the University of Queensland have been working in collaboration with GE-Vingmed Ultrasound to develop a quantitative technique for the assessment of regional cardiac function since 1997. This collaboration has been the source of a number of published papers and presentations at international meetings. Our group is considered to be a world leader in the field and our industry partner is clearly the most focused of its competitors in addressing this problem. This submission seeks to address several remaining problems. The data thus far addressed function during stress, when the condition of most patients is similar. Tissue velocities are more variable at rest, and a more sophisticated approach is required to accurately measure the lower velocities in the resting state. This research plan seeks support for the development of a new, high frame-rate acquisition that would facilitate the examination of velocities relative to each other, so that translational motion of the heart does not influence the reading. This new method would then be validated against other techniques for assessing function and disease.Read moreRead less
Optimising Cognitive Screening In General Practice
Funder
National Health and Medical Research Council
Funding Amount
$300,550.00
Summary
Within the next 5 - 10 years it is likely that sophisticated combination pharmacotherapy for Alzheimer's disease will become available. Once intervention agents are available that affect the underlying disease process, it will be critical to accurately identify those patients who are in the earliest stages of cognitive decline. That is, failure to detect cognitive decline at an early stage will reduce the effectiveness of the intervention and be costly to the individual and society. At the same ....Within the next 5 - 10 years it is likely that sophisticated combination pharmacotherapy for Alzheimer's disease will become available. Once intervention agents are available that affect the underlying disease process, it will be critical to accurately identify those patients who are in the earliest stages of cognitive decline. That is, failure to detect cognitive decline at an early stage will reduce the effectiveness of the intervention and be costly to the individual and society. At the same time, the probability of falsely identifying an individual as having Alzheimer's disease needs to be reduced in order to avoid unnecessary testing, anxiety and distress, and expense. A sophisticated and highly flexible testing system to detect the earliest stages of memory impairment will be developed. The test will be administered over the web in a general practitioner's surgery enabling the collection of normative data on the population of greatest interest (elderly patients seeing their doctor). Voice recognition technology will be used in order to insure a user friendly environment. Stringent procedures to protect privacy will be employed. The test will be inexpensive and easy to take and will allow valid retesting so that it can be used as part of the routine health screening for the elderly. This will be a far more sensitive and specific indicator of the cognitive decline found in most neurodegenerative disorders such as Alzheimer's disease, and will enable general practitioners to be more confident in assessing their older patients. It will also reduce costly referrals by more accurately identifying those patients at risk. It is expected that the test will find acceptance amongst patients and their doctors and become a routine part of normal health screening for the elderly.Read moreRead less