What is the spatial resolution achieved by the arrangement of detectors in PET mammography?

The spatial resolution achieved by the arrangement of detectors in PET mammography is typically in the range of 1.5 to 2 mm. This resolution is critical because it determines the system's ability to distinguish between two closely located structures in the breast, which is essential for accurate diagnosis and evaluation of breast lesions. The advanced design of detectors in PET systems is optimized to minimize blurring and increase the fidelity of the images obtained, resulting in improved clarity at the cellular level.

A spatial resolution of 1.5 to 2 mm allows clinicians to better identify abnormalities that may indicate the presence of breast cancer or other pathological changes. This level of precision is particularly important for detecting small tumors that could be missed with lower resolution systems.

The other options represent wider ranges that exceed the typical capabilities of current PET mammography systems, thus making the 1.5 to 2 mm range the most accurate answer for spatial resolution in this context.