isDiagnosticBiomarkerFor isMonitoringBiomarkerFor metric tissue attenuation coefficient Nadrljanski M, McKay L, Worsley C, et al. Attenuation coefficient. Reference article, Radiopaedia.org (Accessed on 07 May 2024) https://doi.org/10.53347/rID-9035 tissue attenuation value The attenuation coefficient is a measure of how much the incident energy beam (e.g. ultrasound or x-rays) is weakened by the material it is passing through. disease