نتایج جستجو برای: heart dose

تعداد نتایج: 683169  

Journal: :European heart journal 1997
J L Reid

Angiotensin converting enzyme inhibitors are established treatment for hypertension and heart failure. There are well documented differences between ACE inhibitors both in physicochemical properties and pharmacokinetics. Pharmacodynamic actions are similar for most members of the ACE inhibitor class but there are compounds with additional effects which may reflect protease inhibition or non-enz...

Journal: :iranian journal of radiation research 0
gh. fallah mohammadi department of radiology, paramedical faculty, mazandaran university of medical sciences, sari, iran m. vahabi moghadam department of physics, faculty of science, university of guilan, rasht, iran m. ghanbar moghadam department of physics, faculty of science, university of guilan, rasht, iran

background: interventional cardiology procedures such as coronary angiography (ca) and percutaneous transluminal coronary angiography (ptca) has been increased recent years. the purpose of this study was to measurement of effective dose to cardiology staffs who operate near the patient and are exposed to non-uniform radiation field due to patient scattered radiation. materials and methods: this...

Journal: :Circulation 1992
M Kambayashi T Miura B H Oh H A Rockman K Murata J Ross

BACKGROUND The influence of changes in heart rate on myocardial contractility (the force-frequency effect) differs under various experimental conditions, including the anesthetized versus the conscious state. METHODS AND RESULTS To assess the influence of beta-adrenergic stimulation on force-frequency effects on myocardial contraction and relaxation, seven instrumented conscious dogs were stu...

Journal: :journal of biomedical physics and engineering 0
t r verma king george medical university,up;lucknow n k painuly king george medical university, up, lucknow, indiaسازمان اصلی تایید شده: 0 دانشگاه های خارج از کشور s p mishra سازمان اصلی تایید شده: 0 دانشگاه های خارج از کشور m shajahan n singh king george medical university, up, lucknow, india m l b bhatt dr.ram manohar lohia institute of medical sciences, lucknow, indiaسازمان اصلی تایید شده: 0 دانشگاه های خارج از کشور

background: inclusion of inhomogeneity corrections in intensity modulated small fields always makes conformal irradiation of lung tumor very complicated in accurate dose delivery. objective: in the present study, the performance of five algorithms via monte carlo, pencil beam, convolution, fast superposition and superposition were evaluated in lung cancer intensity modulated radiotherapy planni...

Journal: :The American journal of managed care 2003
J Sanford Schwartz Y Richard Wang John G F Cleland Longlong Gao Mark Weiner Philip A Poole-Wilson

BACKGROUND Angiotensin-converting enzyme (ACE) inhibitors reduce heart failure death and hospitalization. Prescribed doses often are lower than randomized clinical trial (RCT) targets and practice guideline recommendations. OBJECTIVE To assess the cost-effectiveness of high- versus low-dose ACE inhibitor therapy in the ATLAS trial. STUDY DESIGN A 19-nation RCT of high-dose (32.5-35.0 mg/day...

Journal: :iranian journal of radiation research 0
g. yavas selcuk university, faculty of medicine, department of radiation oncology, konya, turkey c. yavas konya training and research hospital, department of radiation oncology, konya, turkey h. acar selcuk university, faculty of medicine, department of radiation oncology, konya, turkey

background: we aimed to compare field-in-field technique (fif) with conformal tangential field radiotherapy (crt) in terms of dosimetric benefits for early stage breast cancer radiotherapy. materials and methods: twenty consecutive left-side breast cancer patients who underwent breast-conserving surgery were included to the study. for each patient, two different treatment plans were created for...

Journal: :acta medica iranica 0
vida nesar hossein department of internal cardiology, fatemeh zahra hospital of sari, mazandaran university of medical sciences, mazandaran, iran. keivan yosef nejad department of internal cardiology, fatemeh zahra hospital of sari, mazandaran university of medical sciences, mazandaran, iran. fatemeh abdollahian department of internal cardiology, fatemeh zahra hospital of sari, mazandaran university of medical sciences, mazandaran, iran.

coronary heart disease is the leading cause of death and disability in adults. the association between acute coronary syndrom (acs) and elevated serum high sensitivity c-reactive protein (hscrp) suggests that chronic inflammation of the coronary arterial wall may play an important role. a number of drugs used in the treatment of cardiovascular disease reduce serum crp. it* is therefore possible...

Journal: :International journal of radiation oncology, biology, physics 2008
Carolyn W Taylor Julie M Povall Paul McGale Andrew Nisbet David Dodwell Jonathan T Smith Sarah C Darby

PURPOSE To quantify the radiation doses received by the heart and coronary arteries from contemporary tangential breast or chest wall radiotherapy. METHODS AND MATERIALS Fifty consecutive patients with left-sided breast cancer and 5 consecutive patients with right-sided breast cancer treated at a large United Kingdom radiotherapy center during the year 2006 were selected. All patients were ir...

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