نتایج جستجو برای: coronary angiography composite shield

تعداد نتایج: 347287  

Journal: :The New England journal of medicine 2009
Pim A L Tonino Bernard De Bruyne Nico H J Pijls Uwe Siebert Fumiaki Ikeno Marcel van' t Veer Volker Klauss Ganesh Manoharan Thomas Engstrøm Keith G Oldroyd Peter N Ver Lee Philip A MacCarthy William F Fearon

BACKGROUND In patients with multivessel coronary artery disease who are undergoing percutaneous coronary intervention (PCI), coronary angiography is the standard method for guiding the placement of the stent. It is unclear whether routine measurement of fractional flow reserve (FFR; the ratio of maximal blood flow in a stenotic artery to normal maximal flow), in addition to angiography, improve...

Journal: :the journal of tehran university heart center 0
amin daoulah king faisal specialist hospital & research center-jeddah, jeddah, saudi arabia. awad al qahtani hamad medical corporation, doha, qatar. majed mazen malak king abdulaziz university hospital, jeddah, saudi arabia. saud al ghamdi king faisal specialist hospital & research center-jeddah, jeddah, saudi arabia.

spontaneous coronary artery dissection (scad) is a rare condition that can result in unstable angina, acute myocardial infarction, and sudden death. this condition may occur particularly in women during late pregnancy and in the postpartum period. we present the case of a 33-year-old african american woman, who had spontaneous left anterior descending coronary artery (lad) dissection two weeks ...

Journal: :the journal of tehran university heart center 0
james min weill cornell medical college, new york presbyterian hospital, new york, ny, usa. fay lin weill cornell medical college, new york presbyterian hospital, new york, ny, usa. samuel wann wisconsin heart hospital, milwaukee, wi, usa.

cardiovascular disease remains the principal cause of death in the modernized world.   several novel noninvasive imaging techniques have been recently developed to improve diagnosis of cardiac and coronary disease.   of these advances, multidetector computed tomographic (mdct) angiography has evolved most dramatically to transform computed tomography from a single-slice trans-axial modality to ...

Journal: :the journal of tehran university heart center 0
homa kashani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. hojjat zeraati department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. kazem mohammad department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. hamidreza goodarzynejad tehran heart center, tehran university of medical sciences, tehran, iran. mahmood mahmoudi department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. saeed sadeghian tehran heart center, tehran university of medical sciences, tehran, iran.

background: investigators frequently encounter continuous outcomes with plenty of values clumped at zero called semi-continuous outcomes. the gensini score, one of the most widely used scoring systems for expressing coronary angiographic results, is of this type. the aim of this study was to apply two statistical approaches based on the categorization and original scale of the gensini score to ...

Journal: :Aorta 2014
Mikael Péterffy Christian Olsson

Six months after a composite graft redo operation repairing two pseudoaneurysms at the distal suture line and the right coronary artery, respectively, a patient returned asymptomatic and in good general condition but with new presternal bulges. Computed tomography and angiography diagnosed a new pseudoaneurysm of the left coronary artery, and on frank rupture, acute re-repair was undertaken wit...

Journal: :the journal of tehran university heart center 0
masoud tarbiat ekbatan heart hospital, hamedan university of medical sciences, hamedan, iran. gholamreza safarpoor ekbatan heart hospital, hamedan university of medical sciences, hamedan, iran.

iatrogenic coronary artery dissection during coronary angiography with or without rupture is a rare but feared complication . we herein report a case of iatrogenic left main coronary artery dissection in a 49-year-old female. admitted to our hospital with a recent history of severe hypotension, she develpled apnea during angiography. she was intubated  and resuscitated with an epinephrine infus...

ژورنال: یافته 2012
عزیززاده فروزی, منصوره, خدری , پریچهر , ملکی, مجید , یثربی راد, مریم ,

Background : The function of the coronary arteries is to transport oxygenated blood to the heart muscle and if these arteries have been clogged due to fat plaque, patient has to undergo coronary angiography to determine the narrowing rate of coronary arteries and for this purpose, the left femoral artery is used . The aim of this research is to study the effect of pressure bandaging in reducing...

ژورنال: سنجش و ایمنی پرتو 2019

In this study, a flexible composite shield with a combination of polyethylene, tungsten and boron carbide has been designed and constructed for neutron-gamma mixed fields. For this purpose, theoretical studies were conducted using the multi-purpose MCNPX Code. According to the results of simulation studies, a multi-purpose composite was constructed using a combination of a solid phase of boron ...

Journal: :the journal of tehran university heart center 0
shahram dabiri emam hospital, nuclear medicine department, tabriz university of medical sciences, tabriz, iran. naser aslanabadi madani heart hospital, tabriz university of medical sciences, tabriz, iran.

background: diagnosis of coronary artery disease (cad) in patients with left bundle branch block (lbbb) is considered as a challenge in cardiology due to the low accuracy of noninvasive methods such as basal and stress electrocardiography (ecg). this diagnostic challenge can be reduced but not eliminated using dipyridamole as a stress method instead of exercise. the aim of this study was to ass...

احمدی, فضل‌ا..., خانی, محمد, حنیفی, نسرین , معماریان, ربابه ,

    The purpose of the present study was to determine the effect of Benson relaxation and premedication on systolic, diastolic, LV & aorta pressure in patients under coronary angiography hospitalized in heart and post angio unit of Shahid Beheshti Center of heart in Zanjan during 2003. In this quasi-experimental study, 40 patients under coronary angiography were selected with random allocation ...

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