SPECT/CT定量技术新进展

New progress in SPECT/CT quantitative techniques

  • 摘要: SPECT一直被认为不能进行定量分析,但SPECT/CT、物理校正(光子衰减、散射等技术)及图像重建算法等技术的出现推动了SPECT/CT定量技术的发展,目前SPECT/CT已经可以进行类似PET的定量分析。多种技术的整合使SPECT/CT在图像采集及处理方面的性能进一步提高,使定量更加准确。笔者主要对SPECT/CT的硬件、物理校正、图像重建算法的临床应用及不足进行综述。

     

    Abstract: SPECT has always been considered as a technique thas unsuitableat cannot be used for quantitative analysis. The However, the appearance of such technologies, e.g., as SPECT/CT, physical correction (such as photon attenuation and scattering), and image reconstruction algorithms, haves promoted the development of SPECT/CT quantitative technology development. The direct integration of multiple technologies allows the further improvement of SPECT/CT to further improve performance in image acquisition and processing, thereby ensuring more accurate quantification. The authors mainly summarized the SPECT/CT hardware, physical correction, image reconstruction algorithm, and clinical application and insufficiency.

     

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