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断层屏蔽SPECT成像法探讨 被引量:4

The scheme of slice collimator for SPECT imaging
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摘要 本文以空间积分原理为基础,以逐渐逼近法为图像重建的核心,探讨了可实现断层屏蔽的SPECT成像的途径。与传统的SPECT成像方法比较,它具有高的灵敏度和数据获取速度快的特点。由于无须用机械装置将γ照相机旋转,消除了运动带来的误差,提高了成像的质量。本文用线性方程组的松弛解法对无散射和无噪音的二维空间的模拟数据进行了验算,证明逐渐逼近法能逐渐逼近到放射性分布区域,并能基本给出分布形式。 Based on the spatial integral and approaching method, the slice collimator is proposed for SPECT imaging It has the advantages of high sensitivity and fast scanning over the conventional SPECT. Rotation of the gamma camera is not necessary, thus resulting in the reduction of the patient motion artifact and the improvement of image quality. The ideal 2-D simulation data were generated without considering scattering and noise. A checking computation was carried out with the relaxation solution method of the linear equations set. Results show that the activity distribution regions can be approached gradually, and the distribution pattern can be distinguished by using this method.
机构地区 南京大学物理系
出处 《核技术》 EI CAS CSCD 北大核心 2006年第8期638-640,共3页 Nuclear Techniques
关键词 SPECT成像 断层屏蔽 空间积分 逐渐逼近法 SPECT imaging, Slice collimator, Spatial integral, Approaching method
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参考文献13

  • 1Jaszczak R J, Chang L T, Murphy Ph. IEEE Trans Nucl Sci, 1979, 26:610-613
  • 2Guerra A D, Damiani C, Domenico G D, et al. IEEE Trans Nucl Sci, 2000, 47(6): 1537-1540
  • 3Habte F, Stenstrom P, Rillbert A, et al. Nucl Instr Meth Phys Res, 2001, A 471:80-84
  • 4Green M V, Seidel J, Vaquero J J, et al. Computerized Medical Imaging and Graphics, 2001, 25:79-86
  • 5Jan B A Hanraken, Kora de Bruin, Morgan Shehata, et al.Journal of Nuclear Medicine, 2001,42(12): 1863-1869
  • 6Bouwens L, Van de Walle R, Nuyts J, et al. Computerized Medical Imaging and Graphics, 2001, 25:117-126
  • 7Webb S, Binnie D M, Flower M A, et al. Phys Med Biol,1992, 37:1095-1108
  • 8Webb S, Flower M A, Ott R J. Phys Med Biol, 1993, 38:627-638
  • 9Lodge M A, Bennie D M, Flower M A, et al. Phys Med Biol, 1995, 40: 427-448
  • 10Lodge M A, Webb S, Flower M A. IEEE Trans Med Imag,1996, 15(4): 500-511

二级参考文献4

  • 1桂大为,第7次全国核医学电子学学术会议论文集,1997年,10页
  • 2Tan P,J Nucl Med,1993年,34卷,10期,1752页
  • 3Cao Zongjian,Med Phys,1992年,1205页
  • 4Chang L T,IEEE Trans Nucl Sci,1978年,25卷,643页

共引文献2

同被引文献34

  • 1包尚联,蔡建新,王卫东,龙江生,施铮,王乃善.开展SPECT影像MonteCarlo模拟和高性能低价格SPECT的研制[J].核电子学与探测技术,1995,15(4):213-219. 被引量:1
  • 2马天予,金永杰,吴朝霞,孙熙杉.SPECT投影模型与准直器模糊效应校正[J].清华大学学报(自然科学版),2006,46(3):377-380. 被引量:3
  • 3马天予,金永杰.基于Boltzmann输运方程的SPECT系统解析建模方法[J].高能物理与核物理,2006,30(8):806-811. 被引量:2
  • 4Webb S, Binnie DM, Flower MA, et al.Monte Carlo modeling of the performance of a rotating slit collimator for improved planar gamma camera imaging [J]. Phys. Med.Biol, 1992, 37: 1095-108.
  • 5Webb S, et al. Geometric efficiency of a rotating slit collimator for improved planar gamma camera imaging [J]. Phys Med. Biol, 1993,38:627.
  • 6Lodge MA, et al. The experimental evaluation of a prototype rotating slat collimator for planar gamma camera imaging[J]. Phys Med. Biol, 1995,40:427- 448.
  • 7Lodge MA,et al. A prototype rotating slat collimator for single photon emission computed tomography[J]. IEEE Trans MedImag, 1996, 15 (4): 500.
  • 8Stefaan Vandenberghe, Roel Van Holen, Steven Staelens, Ignace Lernahieu, System characteristics of SPECT with a slat collimated strip detector[J]. Phys. Med. Biol,2006,51:391.
  • 9Kamali-Asla A,et al. Slit slat collimator optimization with respect to MTF[J]. Applied Radiation andlsotopes, 2005,62 : 461.
  • 10张奇玮,马加一,刘庆伟,赵经武.断层屏蔽SPECT的性能和蒙特卡罗模拟[J].核电子学与探测技术,2007,27(4):773-777. 被引量:1

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