Which artifact is commonly associated with a nonuniform SPECT camera?

The bull's-eye artifact is commonly associated with a nonuniform SPECT camera because this type of artifact occurs due to variations in the camera's sensitivity across different angles of rotation. When a SPECT camera is not uniform in its detection capabilities, the information it gathers can lead to distortions that manifest as circular patterns resembling a bull's-eye on the resulting images. This artifact can obscure the interpretation of images, making it challenging to differentiate between true pathology and artifacts introduced by the camera’s performance.

Understanding this association is crucial, as it highlights the importance of quality control and calibration in imaging systems to ensure uniform performance and accurate diagnostic information. Proper identification of these artifacts allows technologists and radiologists to take necessary steps, such as adjusting the camera settings, performing maintenance, or using correction algorithms, to mitigate such issues in clinical practice.