PMC:7239603 / 10344-11841 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7239603","sourcedb":"PMC","sourceid":"7239603","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7239603","text":"Data acquisition and data analysis\nThe time derivative of left ventricular pressure (LV dP/dt) was used for synchronization between the analogue and sonomicrometry signals. The time points were defined as follows:\nMid-systole (MS): time point between LV dP/dt maximum and minimum.\nMid-diastole (MD): time point between LV dP/dt minimum and maximum.\nMinimum (Min) and maximum (Max): amplitude minimum and maximum with respect to each single parameter reported.\nForce measurements were reported from MD to MS (MS–MD). Geometrical values were reported from minimum to maximum (Max–Min). Expansibility was calculated as the change in area from Min to Max divided by the Min area. Three segmental distances corresponding to the segmental force measurements were used for analysis, i.e. the length of the LN, the RN and the LR for both the annular level and the STJ level. For analysis of the shape of the aortic annulus and STJ, 3 anatomical cross-sectional diameters were calculated, that corresponded to the sinus-commissure diameter for each segment throughout the cardiac cycle, i.e. the distance from the non-coronary sinus to LR (NC–LR), right coronary sinus to LN and left coronary sinus to RN (Fig. 2). The difference between the smallest and largest cross-sectional diameter was calculated as a measure of the sphericity and reported at MS and MD. The definition by Tops et al. [20] was used, which defined the structure as oval if the difference between 2 cross-sectional diameters was \u003e3 mm.","divisions":[{"label":"title","span":{"begin":0,"end":34}},{"label":"p","span":{"begin":35,"end":213}},{"label":"p","span":{"begin":214,"end":280}},{"label":"p","span":{"begin":281,"end":348}},{"label":"p","span":{"begin":349,"end":459}}],"tracks":[{"project":"testtesttest","denotations":[{"id":"T118","span":{"begin":856,"end":859},"obj":"Body_part"},{"id":"T119","span":{"begin":900,"end":914},"obj":"Body_part"},{"id":"T120","span":{"begin":919,"end":922},"obj":"Body_part"},{"id":"T121","span":{"begin":1005,"end":1010},"obj":"Body_part"},{"id":"T122","span":{"begin":1011,"end":1021},"obj":"Body_part"},{"id":"T123","span":{"begin":1040,"end":1047},"obj":"Body_part"},{"id":"T124","span":{"begin":1109,"end":1123},"obj":"Body_part"},{"id":"T125","span":{"begin":1145,"end":1159},"obj":"Body_part"},{"id":"T126","span":{"begin":1175,"end":1189},"obj":"Body_part"}],"attributes":[{"id":"A118","pred":"uberon_id","subj":"T118","obj":"http://purl.obolibrary.org/obo/UBERON_0010173"},{"id":"A119","pred":"uberon_id","subj":"T119","obj":"http://purl.obolibrary.org/obo/UBERON_0006008"},{"id":"A120","pred":"uberon_id","subj":"T120","obj":"http://purl.obolibrary.org/obo/UBERON_0010173"},{"id":"A121","pred":"uberon_id","subj":"T121","obj":"http://purl.obolibrary.org/obo/UBERON_0001825"},{"id":"A122","pred":"uberon_id","subj":"T122","obj":"http://purl.obolibrary.org/obo/UBERON_0001020"},{"id":"A123","pred":"uberon_id","subj":"T123","obj":"http://purl.obolibrary.org/obo/UBERON_0000914"},{"id":"A124","pred":"uberon_id","subj":"T124","obj":"http://purl.obolibrary.org/obo/UBERON_0005438"},{"id":"A125","pred":"uberon_id","subj":"T125","obj":"http://purl.obolibrary.org/obo/UBERON_0005438"},{"id":"A126","pred":"uberon_id","subj":"T126","obj":"http://purl.obolibrary.org/obo/UBERON_0005438"},{"subj":"T118","pred":"source","obj":"testtesttest"},{"subj":"T119","pred":"source","obj":"testtesttest"},{"subj":"T120","pred":"source","obj":"testtesttest"},{"subj":"T121","pred":"source","obj":"testtesttest"},{"subj":"T122","pred":"source","obj":"testtesttest"},{"subj":"T123","pred":"source","obj":"testtesttest"},{"subj":"T124","pred":"source","obj":"testtesttest"},{"subj":"T125","pred":"source","obj":"testtesttest"},{"subj":"T126","pred":"source","obj":"testtesttest"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"testtesttest","color":"#ec93c9","default":true}]}]}}