Myocardial perfusion SPECT is one of the most common imaging techniques performed in nuclear medicine departments. To avoid misleading interpretation, it is necessary to address the quality control and technical problems. The truncation artifact occurs when the patient size is large relative to the field of view of the camera, causing false perfusion defects in the LV myocardium, misinterpreted...

Introduction: In patients with cardiac artery disease, a myocardial perfusion scan, which is a non-invasive method, is utilized. This study is conducted to develop an advantageous software applicable to quantitative myocardial SPECT perfusion. Material and Methods: Each cross-section of the left ventricle was segmented by applying a fuzzy clustering method. After obtaining the myocardial skelet...

Objective- Investigate myocardial performance after autologous adipose-derived (ASCs) mesenchymal stem cell differentiated under equiaxial cyclic strain, transplantation in rabbits with acute myocardial infarction (AMI). Design- Prospective, randomized experimental study Animals- 20 New Zealand White rabbits (2-3 kg) P...

Objective(s): The aims of the present study were to investigate the expression of calcium sensing receptor (CaSR) at different times in acute myocardial infarction (AMI) rat myocardial tissue after mouse embryonic stem cells (mESCs) transplantation treatment and to assess its effects on apoptosis and oxidative stress of cardiomyocytes. Materials and M...

background: human enteroviruses (evs) may have a role as a possible risk factor in the pathogenesis of mi. the aim of this study was to evaluate the presence of enterovirus genomic rna in peripheral blood samples of patients with acute myocardial infarction (mi). methods: we investigated the presence of enterovirus genomic rna in the peripheral blood of 115 patients with acute mi hospitalized i...

thrombotic thrombocytopenic purpura (ttp) is a rare syndrome affecting multiple organs. there is no sufficient evidence regarding the clinical cardiac manifestations of ttp. nonetheless, pathologic cardiac involvement is quite frequent in acute ttp, which is predominantly manifested as myocardial necrosis due to coronary arteriolar microthrombosis. the present case report describes a 43-year-ol...

background: the c1019t polymorphism of the connexin-37 (gja4) gene is a single-nucleotide polymorphisms involved in atherosclerotic plaque rupture and atherosclerosis predisposition. we examined the association between the c1019t polymorphism of the gja4 gene and the occurrence of myocardial infarction (mi) in patients with premature coronary artery disease (cad). methods: our study recruited 1...

conclusions: patent coronaries of ua/nstemi patients have a trend to higher tfcs compared to normal values. presence of significant coronary lesions in these patients significantly increases tfc. objectives: the present study is aimed to measure the tfc in the coronary arteries of ua/nstemi patients to find abnormalities in diseased or patent vessels and compare with the normal values. patients...

introduction: telomeres are repetitive sequences of ttaggg section that find at two ends of eukaryotic chromosomes and they shield chromosome ends. telomere shortening in patients with myocardial infarction has been reported. shelterin complex's role is essential in telomere length regulation. telomeric repeat binding factors 1 and 2 (trf1 and trf2) are the most important sheltrein complex...