A comprehensive compilation of published optical properties (absorption, scattering, total attenuation, effective attenuation, andlor anisotropy coefficients) of various biological tissues at a variety of wavelengths is presented. The theoretical foundations for most experimental approaches are outlined. Relations between Kubelka-Munk parameters and transport coefficients are listed. The optical properties of aorta, liver, and muscle at 633 nm are discussed in detail.

ClinicalTrials.gov, number NCT01844284.

VLS oximetry provides a continuous, noninvasive, and localized measurement of the StO2, sensitive to hypoxemia, regional, and global ischemia. The reproducible and narrow StO2 normal range for oral/enteric mucosa supports use of this site as an accessible and reliable reference point for the VLS monitoring of systemic flow.

This interim analysis of the ABSORB EXTEND study shows low rates of MACE and scaffold thrombosis. The study is registered on clinicaltrials.gov (unique identifier NCT01023789).