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   Analysis of stress-only imaging, comparing upright and supine CZT camera acquisition to conventional gamma camera images with and without attenuation correction, with coronary angiography as a reference  
   
نویسنده Jameria Zenith A. ,Abdallah Mouhamad ,Fernandez-Ulloa Mariano ,O’Donnell Robert ,Dwivedi Alok K. ,Washburn Erica ,Khan Naseer ,Khaleghi Mahyar ,Kalakota Nischelle ,Gerson Myron C.
منبع journal of nuclear cardiology - 2018 - دوره : 25 - شماره : 2 - صفحه:540 -549
چکیده    Diagnostic performance of stress-only imaging using a cadmium-zinc-telluride (czt) camera has not been directly compared in the same patients to stress-only attenuation-corrected conventional anger camera images. 112 subjects with correlative coronary angiographic data and 40 subjects with <5% pre-test likelihood of coronary disease completed attenuation-corrected stress-only images on a conventional anger camera and uncorrected upright and supine stress images on a czt camera. two readers provided independent, blinded interpretations of stress-only images. upright and supine stress-only czt images and attenuation-corrected anger camera images provided similar positive (reader 1/reader 2, 50.0%/44.1% vs 46.4%/51.9%) and negative (66.7%/64.0% vs 67.9%/67.7%) predictive values (all p = ns) for obstructive coronary artery disease; however, the sensitivity was higher (81.3% vs 58.3%, p = .05), specificity lower (29.7% vs 50.0%, p = .005), and normalcy rate lower (87.5% vs 100%, p = .025) with attenuation-corrected anger camera images for the first reader with no significant differences between cameras for the second reader. stress-only upright and supine czt imaging was non-inferior statistically to attenuation-corrected stress-only anger camera imaging. nevertheless, stress-only czt imaging be associated with reduced diagnostic sensitivity for some readers compared to attenuation-corrected anger camera images, which be less acceptable clinically compared to stress plus rest images.
کلیدواژه Myocardial perfusion imaging ,Stress-only ,Cadmium-zinc-telluride
آدرس University of Illinois at Chicago, Division of Cardiology, Department of Internal Medicine, USA, University of Cincinnati Medical Center, Division of Cardiology, Department of Internal Medicine, USA, University of Cincinnati Medical Center, Division of Nuclear Medicine, Department of Radiology, USA, University of Cincinnati Medical Center, Division of Cardiology, Department of Internal Medicine, USA, Texas Tech University Health Sciences Center, Division of Biostatistics and Epidemiology, Department of Biomedical Sciences, USA, University of Cincinnati Medical Center, Division of Nuclear Medicine, Department of Radiology, USA, University of Cincinnati Medical Center, Division of Cardiology, Department of Internal Medicine, USA, University of Cincinnati Medical Center, Division of Cardiology, Department of Internal Medicine, USA, University of Cincinnati College of Medicine, USA, University of Cincinnati Medical Center, Division of Cardiology, Department of Internal Medicine, USA
 
     
   
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