SPECT cardiac perfusion imaging
Gated myocardial perfusion SPECT underestimates left ventricular volumes and shows high variability compared to cardiac magnetic resonance imaging -- a comparison of four different commercial automated software packages
... MR imaging and MPS were not performed simultane- ously and LV volumes have been shown to vary with dif- ferent loading conditions ...of perfusion defects at ...MR imaging per- form better in such ...
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Original Article Single photon emission computed tomography myocardial perfusion imaging for early detection and location of stable angina pectoris
... with cardiac overload and relieves at rest. During SPECT myocardial perfusion imaging, myocardial ischemia can be triggered by injection of adenosine agents, and then the SAP patients can ...
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Disappearance of myocardial perfusion defects on prone SPECT imaging: Comparison with cardiac magnetic resonance imaging in patients without established coronary artery disease
... ECG-gated SPECT acquisition in eight phases (bins) was performed on 50 ...gated SPECT could not be acquired because of atrial ...used. SPECT images were reconstructed and post-filtered (Butterworth ...
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Myocardial perfusion imaging by cardiac magnetic resonance
... Therefore perfusion-CMR should be followed by viabil- ity imaging when hypoperfused areas are detected, par- ticularly if these hypoperfused areas show reduced func- tion at ...for imaging lasts ...
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In vivo validation of gated myocardial SPECT imaging for quantification of small hearts: comparison with cardiac MRI
... gated SPECT and CMR ...gated SPECT underesti- mates LV ...to SPECT, which affects delineation of the endocardial border resulting in larger endocardial vol- umes with ...the cardiac cycle are ...
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Diagnostic performance of hybrid cardiac SPECT/CT imaging for patients with takotsubo cardiomyopathy
... Accumulation defects were visually quantified using a 17-segment model of the LV with a 5-point grading system (0, normal uptake; 1, slightly-reduced uptake; 2, moderately-reduced uptake; 3, severely-reduced uptake; and ...
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Cardiovascular risk assessment in diabetes
... CAD, SPECT myocardial perfusion imaging has been shown to accurately identify the presence of myocardial ischemia (as a marker of CAD) and predict future cardiac events ...of SPECT has ...
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Evaluation of CZT SPECT imaging for cardiac sympathetic innervation in healthy individuals and patients with atrial fibrillation
... the energy window was symmetrical and amounted to 10%. The collection time was 600 seconds. Correction for attenuation and dispersion was not carried out. The total effective dose was 6.0-7.3 mSv. Images were ...
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Appropriateness of referrals for single-photon emission computed tomography myocardial perfusion imaging (SPECT-MPI) in Iran
... ACCF/ASNC/ACR/AHA/ASE/SCCT/SCM R/SNM 2009 Appropriate Use Criteria for Cardiac Radionuclide Imaging: A Report of the American College of Cardiology Foundation Appropria[r] ...
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Ejection fraction in myocardial perfusion imaging assessed with a dynamic phantom: comparison between IQ-SPECT and LEHR
... both imaging protocols with corresponding true volumes (dashed lines) determined during CT ...the cardiac muscle thickness as much as QGS with higher ...
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Bilateral coronary artery to pulmonary trunk fistulae detected by coronary angiography and evaluated by ECG-gated SPECT myocardial perfusion imaging: report of two cases
... maximal heart rate calculated for the patient). No features of cardiac ischaemia were present in the ECG during the physical exertion, which was well tolerated. No chest pain or other symptoms of is- chaemia were ...
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Evaluation of pulmonary perfusion by SPECT imaging using an endothelial cell tracer in supine humans and dogs
... in cardiac output and expand the surface for gas exchange and meta- bolic ...pulmonary perfusion could be of value in the evaluation of lung disorders, such as pulmonary arterial ...pulmonary ...
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Prognosis of patients without perfusion defects with and without rest study in myocardial perfusion scintigraphy
... unnecessary imaging time and radiopharmacologic doses, and improved efficiency in the nuclear medicine depart- ment by freeing up camera ...normal SPECT on the basis of stress imaging alone have a ...
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Clinical Utility of N 13 Ammonia Cardiac PET Perfusion Imaging in the Assessment of Epicardial Coronary Lesions of Intermediate Range
... associated cardiac diseases like cardiomyopathy or valvular diseases and co morbid conditions like pulmonary, renal or hepatic dys- function were ...angiogram, SPECT MPI and PET MPI were ...
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Assessment of the Patient Movement for Lesion during Myocardial Perfusion SPECT Imaging by Cardiac Phantom
... in SPECT systems are re-structured by an algorithm called back ...myocardial perfusion SPECT, patients tend to move in different directions by changing position in order to feel comfortable ...
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The Assosiation of Carotid Intima-Media Thickness and Ankle Brachial Index with SPECT Myocardial Perfusion Imaging in Asymptomatic Diabetic Patients
... Objective: The risk of cardiac death in diabetic patients is 3 times more than non-diabetics. But it is not determined who need cardiac screening. About 41% of diabetic patients with silent ischemia are ...
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Evaluation of inter-departmental variability of ejection fraction and cardiac volumes in myocardial perfusion scintigraphy using simulated data
... 12. Soneson H, Hedeer F, Arevalo C, Carlsson M, Engblom H, Ubachs JF, Arheden H, Heiberg E. Development and validation of a new automatic algorithm for quantification of left ventricular volumes and function in gated ...
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Correlative Assessment of Hemodynamic Parameters Obtained with T2* weighted Perfusion MR Imaging and SPECT in Symptomatic Carotid Artery Occlusion
... the perfusion MR imaging and SPECT ...between perfusion MR im- aging and SPECT. SPECT uses freely diffusible tracers so that the entire tissue volume is measured, whereas ...
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Prognostic value of normal regadenoson stress perfusion cardiovascular magnetic resonance
... reversible perfusion defects combined with the absence of LGE provided the lowest annual event rate compared to either finding in isolation ...of cardiac clinical risk factors, LGE, LVEF, and aortic blood ...
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Quantification of cardiac magnetic resonance imaging perfusion in the clinical setting at 3T
... prospective electrocardiogram-gated (iodine-based) contrast enhanced CT angiography at rest (using iomeprol, 400 mg iodine/ml, Iomeron 400, Bracco, UK), with half-segment reconstruction and a 0.35 ms rotation time [99, ...
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