Body-and-lungs-outline penalized-likelihood recon-struction of asymmetric cone-beam transmission data acquired with less than complete gantry rotation
作者: B FengP.H PretoriusP.P BruyantG BoeningR.D BeachH.C GiffordJ.A FesslerM.A King
作者单位: 1Radiology, University of Massachusetts Medical School, Worcester, MA, USA
2Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, USA
刊名: Journal of Nuclear Cardiology, 2004, Vol.11 (4), pp.S3-S3
来源数据库: Elsevier Journal
DOI: 10.1016/j.nuclcard.2004.06.005
原始语种摘要: Abstract(#br)Background: Ideally a 360-degree acquisition is preferred to avoid truncation with asymmetric cone-beam transmission imaging. However, a 360-degree gantry rotation may not be allowed on some SPECT imaging systems, especially those dedicated to cardiac imaging. The objective of this study was to investigate the feasibility of incorporating the body-and-lungs outline from emission data in penalized likelihood reconstruction with transmission projections acquired over less than complete gantry rotation.(#br)Methods: SPECT (Tc99m) emission and sequential transmission data were acquired in list-mode with IRIX SPECT system of the Data Spectrum Anthropomorphic phantom with cardiac insert. The transmission data were acquired using the modified Beacon approach using stationary Ba-133...
全文获取路径: Elsevier  (合作)
影响因子:2.847 (2012)