Attenuation correction: eternal dilemma or real improvement?
Attenuation correction: eternal dilemma or real improvement?
复制标题
衰减校正：永恒的困境还是真正的改善？
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
R. Hendel
中科院分区：
文献类型：
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作者：
R. Hendel
SPECT心肌灌注显像是治疗心脏病患者的临床标准。在过去的20年里，这种方法不断发展，图像质量得到了显著改善。尽管这些持续的改进，成像伪影仍然存在问题，并且经常混淆准确的图像解释。心肌灌注成像伪影最常见和最困难的原因仍然与软组织衰减和由此产生的光子衰减有关。非均匀衰减校正的方法直到最近才进展缓慢，但现在有许多技术可以提供真正的光子衰减校正。临床验证已经证明了这项技术的明显临床效益，核心脏病学领域热情地支持这些技术进步。然而，额外的临床验证是必要的，特别是对于尚未严格评估的市售系统。
SPECT myocardial perfusion imaging is a clinical standard for the care of cardiac patients. During the past 2 decades, this method has continued to evolve and significant improvements in image quality have been realized. Despite these continued improvements, imaging artifacts remain problematic and often confound accurate image interpretation. The most frequent and difficult cause of myocardial perfusion imaging artifacts continues to be related to soft tissue attenuation and resultant photon attenuation. Methods for non-uniform attenuation correction have progressed slowly until recently, but there are now a number of techniques, which offer true correction for photon attenuation. Clinical validation has demonstrated clear clinical benefits for this technology and the field of nuclear cardiology enthusiastically supports these technical advances. However, additional clinical validation is warranted especially for commercially available systems that have not yet been evaluated with rigor.