نتایج جستجو برای: myocardial metabolic uptake

تعداد نتایج: 490598  

A. Ezzi M.H. Hablolvarid, M.R. Gholami

Myocardial necrosis can be result from a number of causes including nutritional deficiencies, chemical and plant toxins, ischemia and metabolic disorder. The outcome of myocardial necrosis varies depending on the extent of the damage (Donald 2001, Jubb 1993, Radostits 1994, Vanvaleet 1986). Myocardial infarction without demonstrable of atherosclerosis were reported in a rhesus macaque (Gonder 1...

Journal: :Circulation. Cardiovascular imaging 2016
Heerajnarain Bulluck Steven K White Georg M Fröhlich Steven G Casson Celia O'Meara Ayla Newton Jennifer Nicholas Peter Weale Simon M Y Wan Alex Sirker James C Moon Derek M Yellon Ashley Groves Leon Menezes Derek J Hausenloy

BACKGROUND Hybrid positron emission tomography and magnetic resonance allows the advantages of magnetic resonance in tissue characterizing the myocardium to be combined with the unique metabolic insights of positron emission tomography. We hypothesized that the area of reduced myocardial glucose uptake would closely match the area at risk delineated by T2 mapping in ST-segment-elevation myocard...

2013
Lele Ji Xing Zhang Wenchong Liu Qichao Huang Weidong Yang Feng Fu Heng Ma Hui Su Haichang Wang Jing Wang Haifeng Zhang Feng Gao

AIMS Ischemic preconditioning (IPC) is a potent form of endogenous protection. However, IPC-induced cardioprotective effect is significantly blunted in insulin resistance-related diseases and the underlying mechanism is unclear. This study aimed to determine the role of glucose metabolism in IPC-reduced reperfusion injury. METHODS Normal or streptozotocin (STZ)-treated diabetic rats subjected...

Journal: :Journal of the American College of Cardiology 1999
A N Kitsiou S L Bacharach M L Bartlett G Srinivasan R M Summers A A Quyyumi V Dilsizian

OBJECTIVES In this study we determined whether 13N-ammonia uptake measured late after injection provides additional insight into myocardial viability beyond its value as a myocardial blood flow tracer. BACKGROUND Myocardial accumulation of 13N-ammonia is dependent on both regional blood flow and metabolic trapping. METHODS Twenty-six patients with chronic coronary artery disease and left ve...

Journal: :archives of razi institute 2016
m.r. gholami m.h. hablolvarid, a. ezzi

myocardial necrosis can be result from a number of causes including nutritional deficiencies, chemical and plant toxins, ischemia and metabolic disorder. the outcome of myocardial necrosis varies depending on the extent of the damage (donald 2001, jubb 1993, radostits 1994, vanvaleet 1986). myocardial infarction without demonstrable of atherosclerosis were reported in a rhesus macaque (gonder 1...

Journal: :American journal of physiology. Heart and circulatory physiology 2007
Danilo Neglia Alberto De Caterina Paolo Marraccini Andrea Natali Marco Ciardetti Cecilia Vecoli Amalia Gastaldelli Demetrio Ciociaro Paola Pellegrini Roberto Testa Luca Menichetti Antonio L'Abbate William C Stanley Fabio A Recchia

Under resting conditions, the failing heart shifts fuel use toward greater glucose and lower free fatty acid (FFA) oxidation. We hypothesized that chronic metabolic abnormalities in patients with dilated cardiomyopathy (DCM) are associated with the absence of the normal increase in myocardial glucose uptake and maintenance of cardiac mechanical efficiency in response to pacing stress. In 10 DCM...

Journal: :Circulation 1992
T H Marwick W J MacIntyre A Lafont J J Nemec E E Salcedo

BACKGROUND The presence of persistent myocardial uptake of 18F-deoxyglucose (FDG) within hypoperfused, dysfunctional segments has been shown to predict the recovery of regional contractile function after revascularization. The spectrum of metabolic responses of such hibernating tissue to revascularization is less clear. METHODS AND RESULTS Sixteen patients with previous infarction were studie...

Journal: :Circulation. Cardiovascular imaging 2014
Eung Ju Kim Sungeun Kim Dong Oh Kang Hong Seog Seo

BACKGROUND Atherosclerosis is considered to be an inflammatory disease associated with the activation of hematopoietic and immune-related organs such as the bone marrow (BM) and spleen. We evaluated the metabolic activity of those organs and of the carotid artery with (18)F-fluorodeoxyglucose positron emission tomography in patients with coronary artery disease, including acute myocardial infar...

2017
Yasuchika Takeishi Atsuro Masuda Hitoshi Kubo Hideyuki Tominaga Noboru Oriuchi Seiichi Takenoshita

A 57-year-old female was referred to our hospital for severe left ventricular hypertrophy (LVH). Although she had no symptoms and no history of hypertension, echocardiography demonstrated severe LVH in the mid LV to the apex with no asymmetric septal hypertrophy. Thus, we suspected apical type of HCM and performed FDG-PET/MRI. After fasting for more than 18 hours, the patient was administered u...

2014
Laura M. T. Neves Marlus Karsten Victor R. Neves Thomas Beltrame Audrey Borghi-Silva Aparecida M. Catai

BACKGROUND Reduced respiratory muscle endurance (RME) contributes to increased dyspnea upon exertion in patients with cardiovascular disease. OBJECTIVE The objective was to characterize ventilatory and metabolic responses during RME tests in post-myocardial infarction patients without respiratory muscle weakness. METHOD Twenty-nine subjects were allocated into three groups: recent myocardia...

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