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Over the last 15 years Dr. Fisher’s laboratory has developed the theory and technology for control of blood gases in spontaneously breathing and ventilated subjects. This work has facilitated a number of scientific and clinical advances. First, using controlled changes of carbon dioxide and oxygen, plus MRI imaging, his team developed unique functional images of cerebral blood flow, or cerebrovascular reactivity. They also developed new image processing methods, which in turn let to new understandings of how brain blood flow is controlled, and has enabled the evaluation of the risk of stroke and the effectiveness of brain vascular bypass surgery in patients with cerebrovascular disease. Second, Dr. Fisher’s research team applied blood gas control to develop a novel fully automated respiratory Fick measure of cardiac output. They believe this is the most accurate known method of measuring cardiac output (see Klein et al. BJA 2015; PMID 25488304). Third, they have developed methods to accelerate the respiratory elimination of hydrocarbons such as anesthetics and carbon monoxide, without affecting the carbon dioxide levels. Finally, they developed the world’s first digitally controlled anesthetic delivery system, and applied it for the first time in patients, at the UHN.
For the last decade Dr. Fisher has been the Chief Scientist at Thornhill Research Inc., a spin-off company from UHN. TRI has developed a compact rugged life-support system for treating and transporting critically injured personnel in war and disaster conditions. In addition, he developed the world’s first FDA approved clinical digital in-line vaporizer for the administration of anesthetics.
研究兴趣
论文共 188 篇作者统计合作学者相似作者
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AMERICAN JOURNAL OF NEURORADIOLOGYno. 1 (2024): 44-50
Frontiers in Physiology (2024)
Strokeno. 3 (2024): 613-621
Ece Su Sayin,James Duffin,Vittorio Stumpo,Jacopo Bellomo,Marco Piccirelli,Julien Poublanc, Vepeson Wijeya,Andrea Para,Athina Pangalu,Andrea Bink, Bence Nemeth,Zsolt Kulcsar,
Vishvak Raghavan,Olivia Sobczyk,Ece Su Sayin,Julien Poublanc, Abby Skanda,James Duffin, Lashmi Venkatraghavan,Joseph A. Fisher,David J. Mikulis
Journal of Magnetic Resonance Imaging (2023)
Frontiers in Neuroimaging (2023): 1048652
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Diseaseno. 24 (2023): e029491-e029491
Ece Su Sayin,James Duffin,Julien Poublanc, Lashmikumar Venkatraghavan,David John Mikulis,Joseph Arnold Fisher,Olivia Sobczyk
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolismno. 12 (2023): 2085-2095
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