High resolution image reconstruction method for a double-plane PET system with changeable spacing

Get Citation
Xiao-Yue Gu, Wei Zhou, Lin Li, Long Wei, Peng-Fei Yin, Lei-Min Shang, Ming-Kai Yun, Zhen-Rui Lu and Xian-Chao Huang. High resolution image reconstruction method for a double-plane PET system with changeable spacing[J]. Chinese Physics C, 2016, 40(5): 058201. doi: 10.1088/1674-1137/40/5/058201
Xiao-Yue Gu, Wei Zhou, Lin Li, Long Wei, Peng-Fei Yin, Lei-Min Shang, Ming-Kai Yun, Zhen-Rui Lu and Xian-Chao Huang. High resolution image reconstruction method for a double-plane PET system with changeable spacing[J]. Chinese Physics C, 2016, 40(5): 058201.  doi: 10.1088/1674-1137/40/5/058201 shu
Milestone
Received: 2015-07-27
Fund

    Supported by Knowledge Innovation Project of The Chinese Academy of Sciences(KJCX2-EW-N06)

Article Metric

Article Views(932)
PDF Downloads(61)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

High resolution image reconstruction method for a double-plane PET system with changeable spacing

    Corresponding author: Xiao-Yue Gu,
  • 1. Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 2. Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China
Fund Project:  Supported by Knowledge Innovation Project of The Chinese Academy of Sciences(KJCX2-EW-N06)

Abstract: Breast-dedicated positron emission tomography(PET) imaging techniques have been developed in recent years. Their capacities to detect millimeter-sized breast tumors have been the subject of many studies. Some of them have been confirmed with good results in clinical applications. With regard to biopsy application, a double-plane detector arrangement is practicable, as it offers the convenience of breast immobilization. However, the serious blurring effect of the double-plane PET, with changeable spacing for different breast sizes, should be studied. We investigated a high resolution reconstruction method applicable for a double-plane PET. The distance between the detector planes is changeable. Geometric and blurring components were calculated in real-time for different detector distances, and accurate geometric sensitivity was obtained with a new tube area model. Resolution recovery was achieved by estimating blurring effects derived from simulated single gamma response information. The results showed that the new geometric modeling gave a more finite and smooth sensitivity weight in the double-plane PET. The blurring component yielded contrast recovery levels that could not be reached without blurring modeling, and improved visual recovery of the smallest spheres and better delineation of the structures in the reconstructed images were achieved with the blurring component. Statistical noise had lower variance at the voxel level with blurring modeling at matched resolution, compared to without blurring modeling. In distance-changeable double-plane PET, finite resolution modeling during reconstruction achieved resolution recovery, without noise amplification.

    HTML

Reference (30)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return