What is the minimal intrinsic resolution for a SPECT gamma camera?

The minimal intrinsic resolution for a SPECT gamma camera is typically characterized by its full width at half maximum (FWHM) performance, which is a measure of the camera's ability to provide clear and distinct images. An intrinsic resolution of 3 to 4 mm FWHM reflects an optimal balance between image quality and practical design constraints of SPECT cameras.

This resolution range is important because it directly impacts the quality of the images produced during a SPECT scan. Higher resolution allows for better separation of adjacent anatomical structures, which is crucial in diagnostic imaging to accurately identify pathologies. The technological advancements in the design and materials used in SPECT cameras have contributed to achieving this level of resolution, making it a standard expectation in clinical settings.

While other options present varying ranges, they do not reflect the established benchmarks for modern SPECT gamma cameras in terms of intrinsic resolution. Thus, the selection of 3 to 4 mm FWHM represents a recognized standard for effective imaging in nuclear medicine applications.