نتایج جستجو برای: cardiac imaging

تعداد نتایج: 712208  

Journal: :archives of cardiovascular imaging 0
roy beigel the heart institute, cedars sinai medical center, david geffen school of medicine, ucla joao carlos tress hospital universitario pedro ernesto louise elizabeth jane thomson the heart institute, cedars sinai medical center, david geffen school of medicine, ucla daniel james luthringer department of pathology, cedars sinai medical center, david geffen school of medicine alexander shturman department of cardiovascular medicine, western galilee hospital, bar ilan university alfredo trento the heart institute, cedars sinai medical center, david geffen school of medicine, ucla

introduction while primary malignant tumors of the heart are rare, angiosarcomas are the most common cardiac malignant tumors. case presentation we describe a 23-year-old woman who presented with a right atrial mass, which was discovered to be a cardiac angiosarcoma. we demonstrate the use of several noninvasive imaging modalities along with pathology confirmation for the definitive and compreh...

Journal: :مجله دانشکده پزشکی اصفهان 0
حمید کلانتری دانشیار، گروه داخلی، دانشکده ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران ندا راد دستیار، گروه داخلی، دانشکده ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران طالب آزرم . استاد، گروه داخلی، دانشکده ی پزشکی، دانشگاه علوم پزشکی اصفهان، ایران

background: the aim of this study was to investigate the correlation between the cardiac and hepatic iron-overload as assessed by magnetic resonance imaging t2 star (mrit 2 -star) technique and serum ferritin level in patients with thalassemia major. methods: in this cross-sectional study we evaluated 170 patients in sayed shohada hospital in isfahan in the year of 2009, cardiac and hepatic iro...

ژورنال: سنجش و ایمنی پرتو 2020

SPECT-CT is an imaging method for diagnosing diseases and studying physiology of the body. In this type of imaging, due to the use of radiopharmaceutical for imaging (SPECT) and X-rays (CT), a relatively high dose of radiation is introduced into the patient. If the patient is pregnant, considering that the developing fetus is sensitive to any radiation in the uterus throughout the entire period...

A Hashemi, B Rahimi, M Noroozi, N Valizadeh, S Hejazi, Sh Nateghi, V Alinejad,

Abstract Background Iron overload is the main transfusion related side effects in patients with transfusion dependent hemoglobinopathies. Severe iron deposition in tissues leads to organ dysfunction. Many organs can be affected such as heart, liver, and endocrine organs. Cardiac failure and liver fibrosis are the consequent of Iron overload in transfusion dependent hemoglobinopathy. Magne...

Journal: :iranian journal of pediatric hematology and oncology 0
n valizadeh assistant professor of hematology/medical oncology, urmia university of medical sciences, urmia, iran v alinejad msc of of biostatistics, patient safety research center, urmia university of medical sciences, urmia, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) s hejazi assistant professor of pediatric hematology/oncology, urmia university of medical sciences, urmia, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) m noroozi assistant professor of pediatric hematology/oncology, urmia university of medical sciences, urmia, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) a hashemi assistant professor of gastroenterology, urmia university of medical sciences, urmia, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) b rahimi assistant professor of cardiology, urmia university of medical sciences, urmia, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences)

abstract background iron overload is the main transfusion related side effects in patients with transfusion dependent hemoglobinopathies. severe iron deposition in tissues leads to organ dysfunction. many organs can be affected such as heart, liver, and endocrine organs. cardiac failure and liver fibrosis are the consequent of iron overload in transfusion dependent hemoglobinopathy. magnetic re...

بنایی, امین, بیجاری, سالار,

Introduction: Cardiac CT (Computed Tomography) angiography applies as a pre-exam method for evaluating the patients with medical problems in their cardiac arteries. Due to the high delivered dose in this imaging method, dose reduction techniques and imaging strategies that serve the images quality with minimum patient dose are the subjects for investigation and research studies. This study will...

Introduction: Functional MRI methods have been used to study sensorimotor processing in the Spinal cord. However, these techniques confront unwanted contributions to the measured signal from the physiological fluctuations. For the spinal cord imaging, most of the challenges are consequences of cardiac and respiratory movement artifacts that are considered as significant sources of noise, especi...

Journal: :iranian journal of nuclear medicine 2007
faraz kalantari hossein rajabi nahid yaghoobi ahmad bitarafan rajabi kourosh gorji

introduction: poor sensitivity and poor signal to noise ratio because of low injected thallium dose and presence of scattered photons are the main problems in using thallium in scintigraphic imaging of the heart. scattered photons are the main cause of degrading the contrast and resolution in spect imaging that result in error in quantification. thallium decay is very complicated and photons ar...

رجبی, حسین, شیرازی, علیرضا , صادقی, مهدی, محمدی, ایرج, پولادیان, مجید ,

Background and purpose: Patient motion during myocardial perfusion SPECT can produce artifacts in reconstructed images which might affect clinical diagnosis. This paper attempts to present a new approach for the detection and correction of cardiac motion utilizing the data obtained during the imaging process. Materials and methods: Our method quantifies motion through polynomial curves modelin...

Journal: :the journal of tehran university heart center 0
akbar shahmohammadi shaheed rajaie cardiovascular medical and research center, tehran, iran. nader givtaj shaheed rajaie cardiovascular medical and research center, tehran, iran. seyed mohammad dalili shaheed rajaie cardiovascular medical and research center, tehran, iran. rahman ghaffari shaheed rajaie cardiovascular medical and research center, tehran, iran.

congenital left ventricular diverticulum is a rare cardiac malformation. two categories of congenital ventricular diverticulum have been identified with regard to their localization: apical and non-apical. apical diverticula are always associated with midline thoraco-abdominal defects and other heart malformations. non-apical diverticula are always isolated defects. diagnosis is established by ...

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