Final answer:
Solid-state (CZT) systems reduce attenuation artifacts by utilizing semiconductors for efficient radiation detection, with fewer escaping particles leading to clearer images especially in SPECT applications.
Step-by-step explanation:
The attenuation artifact that is reduced with a solid-state (CZT) system is related to the efficiency of radiation detection. Solid-state radiation detectors use semiconductors to directly convert ionization produced in a semiconductor into an electrical signal.
The key advantage of solid-state detectors is their efficiency—they have a high efficiency since ionizing radiation is stopped in a shorter distance in solids, meaning fewer particles escape detection. This characteristic reduces the attenuation artifact, especially in applications like single-photon-emission computed tomography (SPECT).