Summed thickening score by myocardial perfusion imaging: A risk factor of left ventricular remodeling in patients with  myocardial infarction

ConclusionsLV remodeling in old MI patients is more extensive and severe than that in subacute MI patients. LV wall thickening abnormalities as expressed by STS and the proportion of segments with reduced wall thickening in segments with normal perfusion are the independent risk factors of LV remodeling in MI patients.
Source: Journal of Nuclear Cardiology - Category: Nuclear Medicine Source Type: research

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ConclusionsQPS can quantitatively evaluate MI severity on myocardial perfusion images in rats, with comparable results to autoradiography. This widely available software could promote the development of new techniques for analysing cardiac images in small animals.
Source: Molecular Imaging and Biology - Category: Molecular Biology Source Type: research
Conclusion: Patients with normal myocardial perfusion scintigraphy in whom ST-segment depression develops during adenosine stress test appear to have no increased risk for future cardiac events compared with similar patients without ECG evidence of ischemia.
Source: Nuclear Medicine Communications - Category: Nuclear Medicine Tags: Original Articles Source Type: research
Authors: Goldkorn R, Naimushin A, Beigel R, Naimushin E, Narodetski M, Matetzky S Abstract BACKGROUND: While patients presenting to emergency departments (ER) with chest pain are increasingly managed in chest pain units (CPU) that utilize accelerated diagnostic protocols for risk stratification, such as single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI), data are lacking regarding the prognostic implications of mildly abnormal scans in this population. OBJECTIVES: To evaluate the prognostic implications of mildly abnormal SPECT MPI results in patients with acute chest pain. ...
Source: The Israel Medical Association Journal - Category: General Medicine Tags: Isr Med Assoc J Source Type: research
1186Objectives: Left ventricular systolic dyssynchrony(LVSD) is an important factor leading to cardiac dysfunction and poor prognosis in patients with coronary heart disease(CAD). Phase analysis of gated single photon emission computed tomography (SPECT) image data is increasingly appreciated as a tool for quantifying LVSD. Additionly,the extent of viable myocardium(Mismatch)and scar (Match) can accurately be assessed by 99mTc-SPECT myocardial perfusion imaging (MPI)combing with 18F-FDG positron emission tomography (PET) myocardial metabolic imaging . Previous study demonstrated that dyssynchrony parameter values may be sp...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Cardiovascular Clinical Science Posters Source Type: research
Conclusion: Based on the results, we conclude that 18F-FGA effectively localizes in isoproteronol-induced cardiomyopathy and has a potential to serve as an infarct-avid agent for localizing MI by PET.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Molecular Imaging of Atherosclerosis (Cardio Basic) Source Type: research
Objectives— To determine whether 3-dimensional (3D) speckle-tracking echocardiography could provide a new way to assess myocardial viability in patients with myocardial infarction (MI). Methods— Forty-five patients with MI underwent routine echocardiography, 2-dimensional (2D) speckle-tracking echocardiography, and 3D speckle-tracking echocardiography. Radionuclide myocardial perfusion/metabolic imaging was used as a reference standard to define viable and nonviable myocardia. Results— Among 720 myocardial segments in 45 patients, 368 showed abnormal motion on routine echocardiography; 204 of 368 were c...
Source: Journal of Ultrasound in Medicine - Category: Radiology Authors: Tags: Original Research Source Type: research
Conclusion LV dyssynchrony may be acquired acutely very early in STEMI and may have a negative impact on LV ejection fraction.
Source: The Egyptian Journal of Critical Care Medicine - Category: Intensive Care Source Type: research
Background— The prognostic value of coronary artery calcium (CAC) scoring on top of myocardial perfusion imaging with single-photon emission computed tomography (SPECT) in patients suspected for coronary artery disease is not well established. Methods and Results— Four thousand eight hundred ninety-seven symptomatic patients without a history of coronary artery disease referred for SPECT and CAC scoring were included. Major adverse cardiac events (MACEs) were defined as late revascularization (>90 days after scanning), nonfatal myocardial infarction, and all-cause mortality. The frequency of abnormal SPECT ...
Source: Circulation: Cardiovascular Imaging - Category: Radiology Authors: Tags: Computerized Tomography (CT), Imaging, Nuclear Cardiology and PET, Prognosis, Atherosclerosis Coronary Artery Disease Source Type: research
Conclusion In closing, our patient’s episode of TGA combined with her emotional and perceptual response lends credence to the proposal of a “fear/paranoia” circuit in the genesis of paranoid delusions—a circuit incorporating amygdala, frontal, and parietal cortices. Here, neutral or irrelevant stimuli, thoughts, and percepts come to engender fear and anxiety, while dysfunction in frontoparietal circuitry engenders inappropriate social predictions and maladaptive inferences about the intentions of others.[54] Hippocampus relays information about contextual information based on past experiences and th...
Source: Innovations in Clinical Neuroscience - Category: Neuroscience Authors: Tags: Anxiety Disorders Behavioral and Cognitive Neurology Case Report Cognition Current Issue Dementia Medical Issues Neurologic Systems and Symptoms Psychiatry Schizophrenia delusions hippocampus neurobiology Transient global amnesia Source Type: research
Conclusion The prognostic value of normal stress-only CZT SPECT is at least comparable and may be even better than that of normal conventional stress SPECT.
Source: European Journal of Nuclear Medicine and Molecular Imaging - Category: Nuclear Medicine Source Type: research
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