PMC:7305584 / 7875-8800 JSONTXT

{"target":"http://pubannotation.org/docs/sourcedb/PMC/sourceid/7305584","sourcedb":"PMC","sourceid":"7305584","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7305584","text":"The classification of COW variants is summarized in Fig. 2. Three ACA asymmetry (AA) groups were defined based on the diameter ratio difference of bilateral A1 segments: AA1 group, 1 side A1 aplasia; AA2, bilateral A1 diameter ratio difference ≥ 50%; AA3, bilateral A1 ratio difference between 10 and 50%. Similarly, 3 PcomA asymmetry (PA) groups were defined: PA1 group, 1 F-PCA, and absent PcomA on the contralateral side; PA2, bilateral PcomA diameter ratio difference ≥ 50%; PA3, bilateral PcomA diameter ratio difference between 10 and 50%. According to the vessel diameter, bilateral A1 segments and PcomAs in each patient were denoted as a dominant or non-dominant side. Symmetry was defined as both bilateral A1 segment and PcomA diameter ratio differences \u003c 10%, with the exclusion of cases with bilateral F-PCAs.\nFig. 2 Classification of Circle of Willis variants (modified from Krabbe-Hartkamp, Radiology 1998) [9]","divisions":[{"label":"label","span":{"begin":823,"end":829}}],"tracks":[{"project":"2_test","denotations":[{"id":"32563264-9530305-12762898","span":{"begin":923,"end":924},"obj":"9530305"}],"attributes":[{"subj":"32563264-9530305-12762898","pred":"source","obj":"2_test"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"2_test","color":"#e3ec93","default":true}]}]}}