What is the typical spatial resolution of modern PET scanners?

Modern PET scanners typically achieve a spatial resolution in the range of 4-5 mm. This level of spatial resolution is a result of advancements in detector technology, reconstruction algorithms, and image processing techniques that have been developed over recent years.

The improved spatial resolution allows for better visualization of anatomical structures and functional processes, enabling more accurate detection of abnormalities such as tumors or other pathological changes. With this resolution, clinicians are better able to differentiate between structures that are close together, leading to enhanced diagnostic capabilities.

Understanding the spatial resolution is crucial in maximizing the effectiveness of PET imaging, as it directly impacts the clarity and usability of the images produced. In contrast, spatial resolutions that are higher or lower than the 4-5 mm range may not provide the same level of detail or accuracy necessary for effective clinical decision-making.