Abstract
An expression for the expected image of a spherical tumour in a uniform background was derived in terms of background thickness and concentration of radioactivity, the tumour size, depth and uptake ratio, the gamma -ray energy and the detector response function. Three models of human observer performance for tumour detection were developed from different signal-to-noise ratio measures based on the statistical theory of detection. The optimum detector spatial resolution predicted by each model was then compared to that obtained from an observer performance study in which the subjects viewed computer-simulated scintigrams.
Original language | English (US) |
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Article number | 008 |
Pages (from-to) | 654-676 |
Number of pages | 23 |
Journal | Physics in medicine and biology |
Volume | 23 |
Issue number | 4 |
DOIs | |
State | Published - 1978 |
Externally published | Yes |
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging