| 摘要 |
<p>A subject (10) is disposed adjacent a linear detector array (18) of a nuclear camera. The subject (10) is injected with a radioactive isotope (14) and η-ray emissions indicative of nuclear decay are detected at the detector array (18) as the detector array rotates about an axis of rotation to collect data over a circular field of view. Detectors farther from the axis of rotation are sampled at a higher sampling rate such that the detectors are sampled after a generally constant arc of rotation to correct for angular aliasing. The detector array (18) rotates about the axis of rotation in a 1/sin θ pattern with angular offset of the detector array from a longitudinal axis of the subject. This corrects for otherwise uneven sampling. A reconstruction processor (46) reconstructs the identifications of the η-ray receiving detectors, or other indicators of event detection location, and the digital peak values to generate a spherical image representation.</p> |
