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Calculation of Noise-Effective Image Quality Disclosure Number: IPCOM000012070D
Publication Date: 2003-Apr-04

Publishing Venue

The Prior Art Database


PET scanners are often classified by the performance metric known as noise-effective count rate (“NECR”). The National Electrical Manufacturing Association committee has declared this metric to be broadly applicable in aiding classification of machine performance for whole-body PET. This performance metric does not account for the image reconstruction process and is for a single, simple but well-defined phantom that does not adequately represent scanner performance over the range of expected clinical application. The methods described below will allow cross-comparison between scanner designs, including use of alternative scintillator materials, by using a metric defined as noise-equivalent image quality (“NEIQ”). NEIQ uses the essence of NECR, in that the scanner performance shall be generated at multiple points on a scanner’s NECR curve.