ex vivo method ex vivo visual assessment 2010-11-01T12:39:05Z A procedure or technique performed on a tissue or body part outside of or away from the living organism but while the tissue itself remains viable, by which a morphological or physiological state or property of that tissue or body part is evaluated, appraised or perceived through the sense of sight, rather than through the use of instruments or machines to make measurements. For observations of living organisms as a whole, or of organs or tissues in situ (that is, operating normally within the living body), use the term "in vivo visual assessment". MMO:0000162 measurement_method_ontology mshimoyama