Journal article
The Impact of Noisy and Misaligned Attenuation Maps on Human-Observer Performance at Lesion Detection in SPECT
Abstract
We have demonstrated an improvement due to attenuation correction (AC) at the task of lesion detection in thoracic SPECT images. However, increased noise in the transmission data due to aging sources or very large patients, and misregistration of the emission and transmission maps, can reduce the accuracy of the AC and may result in a loss of lesion detectability. We investigated the impact of noise in and misregistration of transmission data, …
Authors
Wells RG; Gifford HC; Pretorius PH; Farncombe TH; Narayanan MV; King MA
Journal
IEEE Transactions on Nuclear Science, Vol. 49, No. 3,
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publication Date
June 1, 2002
DOI
10.1109/tns.2002.1039559
ISSN
0018-9499