MRI Technologistover 8 years ago

Dependence of apparent diffusion coefficients (ADC) on b value used in single b value diffusion-weighted image (DWI). On a logarithmic scale, the signal intensity of soft tissue is usually observed to decrease more rapidly at lower b values (<200 s/mm2) than at higher b values (>200 s/mm2). When DWI is limited to a single b value, the calculated ADC can vary from 3.4 × 10−3 mm2/s (b = 200) to 1.7 × 10−3 mm2/s (b = 800) (Mannelli L. et al. 2015) #MRI #DWI #ADC #diffusion