| 代数迭代图像重建技术在SPECT图像重建中应用的研究 |
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| 引用本文： | 曹少平,顾宏清,印春光. 代数迭代图像重建技术在SPECT图像重建中应用的研究[J]. 中国医疗器械杂志, 2010, 34(1): 21-23 |
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| 作者姓名： | 曹少平 顾宏清 印春光 |
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| 作者单位： | 上海交通大学医学院附属上海儿童医学中心,上海市,200127 |
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| 摘 要： | 介绍了采用对比的方法研究了SPECT图像重建技术中常规FBP与代数迭代图像重建方法对病灶T／B（靶/本底）比值和图像的噪声指标。模型和临床病例研究的结果表明．采用OSEM图像重建方法T/B提高：图像噪声指数差别不大：OSEM重建技术对于骨骼病灶T／B提高更明显。在注射剂量不变的情况下，OSEM图像重建方法能够提高图像采集速度一倍以上．而不降低图像质量和病灶的T／B比值。研究结果提示我们，可以采用OSEM图像重建技术取代传统的FBP方法，这样能够明显提高SPECT设备的性价比和临床应用价值。
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| 关 键 词： | SPECT FBEOSEM 图像质量 |
Application of Algebraic Iterative Reconstruction in Imaging Reconstruction of SPECT |
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| Cao Shaoping,Gu Hongqing,Yin Chunguang. Application of Algebraic Iterative Reconstruction in Imaging Reconstruction of SPECT[J]. Chinese journal of medical instrumentation, 2010, 34(1): 21-23 |
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| Authors: | Cao Shaoping Gu Hongqing Yin Chunguang |
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| Affiliation: | Cao Shaoping,Gu Hongqing,Yin Chunguang Shanghai Children Medical Center Affi liated to Shanghai Jiaotong University,200127 |
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| Abstract: | By comparing routine FBP with algebraic iterative reconstruction, this study exploit the effect of the two SPECT reconstruction techniques on the ratio of Target/Background(T/B) and image noise. The result of research on model and clinical cases showed that the technique of OSEM could increase T/B ratio by 1.5%(heart),3.3%(bone),1.4%(brain). No obvious difference in image noise existed between OSEM and FBP. Compared with FBP, OSEM could improve T/B value in bone focus more signif icantly. Under the same inj... |
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| Keywords: | SPECT FBP,OSEM |
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