ISSN 1004-4140
CN 11-3017/P
Volume 26 Issue 2
Apr.  2017
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SHANG Lei-min, TIAN Li-xia, YUAN Ming-kai, DAI Chao-cheng, LI Lin, HUANG Xian-chao, WEI Cun-feng. Geometric Correction Method for Double-plane “Multi-use” Nuclear Medical Imaging System[J]. CT Theory and Applications, 2017, 26(2): 129-138. DOI: 10.15953/j.1004-4140.2017.26.02.01
Citation: SHANG Lei-min, TIAN Li-xia, YUAN Ming-kai, DAI Chao-cheng, LI Lin, HUANG Xian-chao, WEI Cun-feng. Geometric Correction Method for Double-plane “Multi-use” Nuclear Medical Imaging System[J]. CT Theory and Applications, 2017, 26(2): 129-138. DOI: 10.15953/j.1004-4140.2017.26.02.01
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Geometric Correction Method for Double-plane “Multi-use” Nuclear Medical Imaging System

  • 1. East China University of Technology, Nanchang 330013, China;

  • 2. Institute of High Energy Physics,Chinese Academy of Sciences, Beijing 100049, China;

  • 3. Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China

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  • Received Date: November 14, 2016
  • Available Online: November 27, 2022
    Graphical Abstract
    • Abstract
  • Double-plane multi-function nuclear medical imaging system can support both Positron Emission Tomography Imaging(PET) and Single Photon Emission Imaging(Gamma camera). It is a "multi-use" device which can switch operating mode between double plane PET and γ camera using tractable collimators. Considering the requirements of this special operating mode and the accuracy of the mechanical assembly, it is particularly important to process a series of geometric calibration before data acquisition. After that the calibration factors can be used in data correction or image reconstruction. In this paper, we studied the influence of system geometry offset on image quality and established a set of calibration and correction methods based on the parametric representation of these factors. The performance of correction accuracy was evaluated based on the Monte Carlo simulation data. The results showed that the method is effective, feasible and simple.
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