نتایج جستجو برای: blood perfusion

تعداد نتایج: 719171  

Journal: :journal of biomedical physics and engineering 0
e. i. parsai university of toledo medical center, 3000 arlington avenue, toledo, ohio  43614  usa b. gautam university of toledo medical center, 3000 arlington avenue, toledo, ohio 43614 usa d. shvydka university of toledo medical center, 3000 arlington avenue, toledo, ohio 43614 usa

concurrent hyperthermia and radiation therapy in treatment of cancer show a strong evidence of a synergistic enhancement. we designed a new self-regulating thermo-brachytherapy seed, which serves as a source of both radiation and heat for concurrent administration of brachytherapy and hyperthermia. the thermo-brachytherapy seed has a core of ferromagnetic material which produces heat when subje...

Measurement of tissue blood perfusion has many applications in the prevention of pressure sores, muscle activity assessment and care of tissue blood perfusion during surgery. Photoplethysmography as a continuous measure for evaluation of blood perfusion in tissue is accepted by researchers. In this study a new method for assessment of blood perfusion to the tissue based on photoplethysmograph s...

Journal: :iranian journal of nuclear medicine 0
vahid reza dabbagh kakhki nuclear medicine research center, mashhad university of medical sciences, mashhad, iran fereshteh madani sani cardiac anesthesia research center, mashhad university of medical sciences, mashhad, iran bita dadpour medical toxicology research center, mashhad university of medical sciences. mashhad, iran

introduction:amphetamines are central nervous system (cns) stimulant substances and amphetamine abuse is considered a growing problem in our country. previous studies revealed destructive effects of amphetamines on metabolism, perfusion and structure of brain. the aim of current study was evaluating regional cerebral blood flow (rcbf) disturbances in methamphetamine (ma) abusers using brain per...

Journal: :Scilight 2022

Sensing technology provides quantitative characterization of blood flow, hydration, perfusion, skin temperature, and thermal transport properties.

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1972

Journal: :the journal of tehran university heart center 0
mehrnoush toufan cardiovascular research center, madani heart hospital, tabriz university of medical sciences, tabriz jahanbakhsh samadikhah cardiovascular research center, madani heart hospital, tabriz university of medical sciences, tabriz azin alizadeh asl cardiovascular research center, madani heart hospital, tabriz university of medical sciences, tabriz rasoul azarfarin cardiovascular research center, madani heart hospital, tabriz university of medical sciences, tabriz seyed hadi hakim cardiovascular research center, madani heart hospital, tabriz university of medical sciences, tabriz

background: standard methods for the measurement of myocardial perfusion are invasive and require cardiac catheterization or the use of radioisotope dyes. the coronary sinus blood flow (csbf) is an appropriate criterion for the efficacy of myocardial perfusion. this study sought to measure csbf via transthoracic echocardiography (tte) in patients with acute myocardial infarction (ami) and to as...

Journal: :Journal of Applied Physiology 2021

We simultaneously assessed the blood flow index (BFI) in three respiratory muscles during hyperpnea and high-intensity constant-load cycling sustained at comparable levels of work breathing neural drive patients with COPD. demonstrated that exercise impairs muscle perfusion, as intercostal, scalene, abdominal BFI increased but not cycling. Insufficient adjustment perfusion was associated greate...

اخلاق, سید هدایت اله, الهیاری, الهه, ضیغمی, داود, عظمتی, سیمین, علیپور, عباس, مقصودی, بهزاد, هادوی, سید محمدرضا,

Background & objectives: Cardiopulmonary bypass often causes a stress hormonal response with subsequent changes in hemodynamic and organ perfusion. Human studies involving cardiopulmonary bypass have shown that very low doses of ketamine can attenuate inflammatory and stress markers, without adverse effects. The aim of this study was to investigate whether low dose infusion of ketamine have hem...

Objective: Measurement of blood-brain permeability dysfunction in active and chronic MS lesions with T1-weighted dynamic contrast-enhanced MRI to show variation in inflammatory activity Background: blood-brain-barrier perfusion characterization impaired in MS as some studies have shown recently buta comparison between perfusion parameters in contrast-enhanced and non-enhanced lesions not have ...

2013
Yanqi Li Xiaomei Li Dan Zhou Kang Wang Yangyang Liu Yi Guo Shuang Qiu Tianchen Zhai Shuang Liu Jingjing Liu Dong Ming

Objective. To observe the dermal microcirculation blood perfusion characterization of meridians channels (acupoints). Methods. 20 healthy human subjects were monitored using Pericam Perfusion Speckle Imager (PSI) for the changes in dermal microcirculation blood perfusion on governor meridian and other respective dermal regions as a control. Result. The microcirculation blood perfusion on Govern...

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