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2001版“PET性能测量”的NEMA(美国电器制造商协会)标准是对1994年版本NEMA标准的修订,使之适合于各类PET(正电子发射体层显像)仪的质量保证和验收测量。内容主要包括以下几个部分:(1)定义、符号和参考出版物;(2)总论;(3)空间分辨率;(4)散射因子、计数丢失和随机符合测量;(5)灵敏度;(6)精确性:计数丢失和随机符合校正;(7)图像质量、衰减和散射校正精确性。
The 2001 NEMA (American Electrical Manufacturers Association) standard for “PET Performance Measurement” is a revision of the 1994 version of the NEMA standard that makes it suitable for quality assurance and acceptance measurement of various types of PET (Positron Emission Tomography) instruments . The content mainly includes the following parts: (1) Definitions, symbols and reference publications; (2) General theory; (3) Spatial resolution; (4) Scattering factors, loss of counts and random fit measurements; (5) Sensitivity; (6) Accuracy: Lost count and random fit; (7) Image quality, attenuation and scatter correction accuracy.