Data acquisition and crystal identification for PET detector(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2019年第12期
- Page:
- 1456-1460
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Data acquisition and crystal identification for PET detector
- Author(s):
- YUE Song1; TONG Lin’ge2; YIN Yongzhi2; PEI Xi1
- 1. School of Physics, University of Science and Technology of China, Hefei 230027, China; 2. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Keywords:
- Keywords: positron emission tomography; crystal identification; watershed algorithm; image segmentation
- PACS:
- R318.6
- DOI:
- DOI:10.3969/j.issn.1005-202X.2019.12.018
- Abstract:
- Abstract: Objective To design a small-pixel PET imaging system and obtain the crystal lookup table used for computed tomography. Methods After the resolution images of the probe positions of LYSO scintillators (pitch_2.0_mm_10×10 and pitch_1.6 mm_10×1) were obtained by PCI-ADC system, watershed algorithm was employed to complete image segmentation and realize crystal identification. Results For the pixel probes of pitch_2.0_mm_10×10 and pitch_1.6 mm_10×10, all the crystals were identified. Meanwhile, the data of pitch_1.6 mm_20×20 from University of Washington were processed, and no crystal adhesion was observed. Conclusion The PET data acquisition system performs satisfactorily, and watershed algorithm is capable of identifying different pixel crystals, which provide a basis for the further computed tomography and three-dimensional construction.
Last Update: 2019-12-26