The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (https://rgd.mcw.edu/rgdweb/contact/contactus.html).
Any measurement in which the number of individuals in a study population that display cerebrovascular lesions at a point in time or develop cerebrovascular lesions within a determined period of time are compared to the total number of individuals in the study population. Often expressed as a percentage but could be expressed as a ratio. A cerebrovascular lesion is a non-tumorous, that is non-neoplastic, lesion of the brain which involves or is caused by a component of the vascular system and blood supply of the brain. These include strokes, any of a group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to brain ischemia and/or intracranial hemorrhages.