Impact of filter convolution and displayed field of view on estimation of coronary Agatston scores in low-dose lung computed tomography.pdfVIP

Impact of filter convolution and displayed field of view on estimation of coronary Agatston scores in low-dose lung computed tomography.pdf

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Impact of filter convolution and displayed field of view on estimation of coronary Agatston scores in low-dose lung computed tomography.pdf

IJCA-24650; No of Pages 7 International Journal of Cardiology xxx (2017) xxx–xxx Contents lists available at ScienceDirect International Journal of Cardiology journal homepage: /locate/ijcard Impact of ?lter convolution and displayed ?eld of view on estimation of coronary Agatston scores in low-dose lung computed tomography Yung-Liang Wan a,?, Pei-Kwei Tsay b, Patricia Wanping Wu a,1, Yu-Hsiang Juan a, Hui-Yu Tsai c, Chung-Yin Lin c, Chih-Sheng Yeh a, Chun-Hua Wang d, Chun-Chi Chen e a Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Institute for Radiological Research, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan b Department of Public Health and Center of Biostatistics, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan c Institute for Radiological Research, Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan d Section of Pulmonary Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan e Section of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan article info Article history: Received 30 December 2016 Received in revised form 21 February 2017 Accepted 24 February 2017 Available online xxxx Keywords: Coronary calci?cation Computed tomography Filter convolution Displayed ?eld of view Low-dose lung CT abstract Background: Coronary artery calci?cation (CAC) may be quanti?ed on low-dose computed tomography (CT) of the lung (LDCT). This study aims to evaluate the effects of ?lter convolution (FC) and displayed ?eld of view (dFOV) in a Toshiba 320-row CT scanner in quantifying CAC, and to compare the CAC scores obtained by LDCT with standard cardiac CT. Methods: Fifty subjects (52 to 85 years, mean 68.5, 36 males) with visible CAC underwent both

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