UWOMJ Volume 63, Number 2, Spring 1994

Schulich School of Medicine & Dentistryhttps://ir.lib.uwo.ca/uwomj/1240/thumbnail.jp

Advanced technological aids for the handicapped

Call number: LD2668 .R4 CMSC 1988 M37Master of ScienceComputing and Information Science

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Peripheral Neuropathy

Over the last two decades we have seen extensive progress within the practice of neurology. We have refined our understanding of the etiology and pathogenesis for both peripheral and central nervous system diseases, and developed new therapeutic approaches towards these diseases. Peripheral neuropathy is a common disorder seen by many specialists and can pose a diagnostic dilemma. Many etiologies, including drugs that are used to treat other diseases, can cause peripheral neuropathy. However, the most common cause is Diabetes Mellitus, a disease all physicians encounter. Disability due to peripheral neuropathy can be severe, as the patients suffer from symptoms daily. This book addresses the advances in the diagnosis and therapies of peripheral neuropathy over the last decade. The basics of different peripheral neuropathies is briefly discussed, however, the book focuses on topics that address new approaches to peripheral neuropathies

Investigation and Quantification of FES Exercise – Isometric Electromechanics and Perceptions of Its Usage as an Exercise Modality for Various Populations

Functional Electrical Stimulation (FES) is the triggering of muscle contraction by use of an electrical current. It can be used to give paralyzed individuals several health benefits, through allowing artificial movement and exercise. Although many FES devices exist, many aspects require innovation to increase usability and home translation. In addition, the effect of changing electrical parameters on limb biomechanics is not entirely understood; in particular with regards to stimulation duty cycle. This thesis has two distinct components. In the first (public health component), interview studies were conducted to understand several issues related to FES technology enhancement, implementation and home translation. In the second (computational biomechanics component), novel signal processing algorithms were designed that can be used to measure mechanical responses of muscles subjected to electrical stimulation. These experiments were performed by changing duty cycle and measuring its effect on quadriceps-generated knee torque. The studies of this thesis have presented several ideas, toolkits and results which have the potential to guide future FES biomechanics studies and the translatability of systems into regular usage for patients. The public health studies have provided conceptual frameworks upon which FES may be used in the home by patients. In addition, they have elucidated a range of issues that need to be addressed should FES technology reach its true potential as a therapy. The computational biomechanics studies have put forward novel data analysis techniques which may be used for understanding how muscle responds to electrical stimulation, as measured via torque. Furthermore, the effect of changing the electrical stimulation duty cycle on torque was successfully described, adding to an understanding of how electrical stimulation parameter modulation can influence joint biomechanics

NASA technology applications team: Applications of aerospace technology

Two critical aspects of the Applications Engineering Program were especially successful: commercializing products of Application Projects; and leveraging NASA funds for projects by developing cofunding from industry and other agencies. Results are presented in the following areas: the excimer laser was commercialized for clearing plaque in the arteries of patients with coronary artery disease; the ultrasound burn depth analysis technology is to be licensed and commercialized; a phased commercialization plan was submitted to NASA for the intracranial pressure monitor; the Flexible Agricultural Robotics Manipulator System (FARMS) is making progress in the development of sensors and a customized end effector for a roboticized greenhouse operation; a dual robot are controller was improved; a multisensor urodynamic pressure catherer was successful in clinical tests; commercial applications were examined for diamond like carbon coatings; further work was done on the multichannel flow cytometer; progress on the liquid airpack for fire fighters; a wind energy conversion device was tested in a low speed wind tunnel; and the Space Shuttle Thermal Protection System was reviewed

An investigation into interface pressure (ip) risk of healthy volunteers on modern medical imaging and radiotherapy tables

Background and RationalePressure ulcers (PUs) present significant threats to patients and cost billions of total healthcare expenditure. In radiography/radiotherapy, a potential for high interface pressure (IP) on radiography/radiotherapy tables may exist, however no study has investigated this to an acceptable scientific level.Thesis aimsThis thesis involved two-phases. The primary aim of phase one was to investigate whether IP risks exist on radiography/radiotherapy tables. The secondary aim was to assess the perception of pain and comfort on radiography/radiotherapy tables. The aim of phase two was to determine the impact of pressure relieving interventions on IP at jeopardy areas.Method and resultsIn the first phase, an Xsensor pressure mapping system was used to measure IP of jeopardy areas in healthy volunteers (26 females, 23 males; aged 18-59 (mean=34.6±10.5)) on three radiography/radiotherapy surfaces, after which they completed a pain and comfort questionnaire. ANOVA identified statistically significant differences in the mean IP for head, sacrum, and heels across the three surfaces (p≤0.001). Results indicated high IP values for head (75.9±6.9mmHg) on the radiotherapy table. This high IP could induce tissue breakdown, thereby increasing the risk of developing PUs in at risk populations. Volunteers experienced most pain whilst lying on the radiotherapy table. In phase two, a thin gel intervention with low radiation attenuation, which also has no impact on image quality, was assessed to reduce IP risks identified for the head. Pressure mapping was conducted on 20 healthy volunteers (14 males (70%) and six females (30%)); aged 25-53 years (mean=34.4±7.0). Paired-samples t-test indicated a statistically significant difference in the mean IP for the head with and without the intervention; both comparisons recorded mean IP values of 62.4±6.1 and 83.9±8.1 mmHg respectively, p≤0.001. Similarly, there was statistically significant difference in the PPI of the head with and without the intervention (mean=159.8±26.8, and mean=205.1±28.2mmHg respectively; p≤0.001).ConclusionIP risk exists for the head on radiotherapy tables. This could induce tissue injury in patients accessing prolonged interventional radiography and radiotherapy procedures for the head. A thin gel silicone intervention can reduce this risk. Further research is needed to assess its impact in at risk populations

2016 Oklahoma Research Day Full Program

This document contains all abstracts from the 2016 Oklahoma Research Day held at Northeastern State University