Abstract
The main objective of this work was to test a visual search (VS) human-model observer for a multitarget tumor localization task featuring single photon emission computed tomography (SPECT) image volumes. The image volumes were simulated from a digital anthropomorphic phantom containing tumors of three different sizes in the prostate and lymph-node areas of a single phantom. Image volumes were simulated with six different lesion to background contrast ratios. This paper reports the comparison between the VS and the channelized non pre-whitening (CNPW) observers with jackknife free-response ROC (JAFROC) study. The performance of the VS was always lower than that of the CNPW and as the contrast increased, the performance was also increased for both the model-observers. The results were consistent with previous results obtained from 2D single-slice studies.
| Original language | English |
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| Title of host publication | Fully3D Proceedings 2015 |
| Pages | 114-117 |
| Publication status | Published - 2015 |
| Externally published | Yes |
| Event | 13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine - Duration: 1 Jun 2015 → … |
Conference
| Conference | 13th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine |
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| Period | 1/06/15 → … |