ZTE MR-based attenuation correction in brain FDG-PET/MR: performance in patients with cognitive impairment

Objective One of the main challenges of integrated PET/MR is to achieve an accurate PET attenuation correction (AC), especially in brain acquisition. Here, we evaluated an AC method based on zero echo time (ZTE) MRI, comparing it with the single-atlas AC method and CT-based AC, set as reference.