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Abstract P140: Linear Versus Volumetric Measures Of Left Ventricular Sphericity: Concordance And Normal Reference Values
Abstract only Introduction: Greater left ventricular (LV) sphericity, a more globular shape, is associated with poor outcomes. Two measures of sphericity are commonly used: Linear sphericity (LinS) is the ratio of LV end-diastolic diameter (EDD) to 4-chamber length (4cL); volumetric sphericity (VolS...
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Published in: | Circulation (New York, N.Y.) N.Y.), 2020-03, Vol.141 (Suppl_1) |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Online Access: | Get full text |
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Summary: | Abstract only
Introduction:
Greater left ventricular (LV) sphericity, a more globular shape, is associated with poor outcomes. Two measures of sphericity are commonly used: Linear sphericity (LinS) is the ratio of LV end-diastolic diameter (EDD) to 4-chamber length (4cL); volumetric sphericity (VolS) is the ratio of end-diastolic volume (EDV) to the volume of a sphere with diameter=4cL. We sought to compare LinS to VolS and to determine: 1) whether LinS and VolS differ with sex and age group; 2) normal values for LinS and VolS, 3) whether LinS and VolS are concordant in how they stratify individuals.
Methods:
1794 adults (age 65±9y, 47.1% men) in the Framingham Offspring cohort underwent CMR imaging; LV EDD, EDV and 4cL were measured. A referent group (340M, 512W) free of clinical cardiovascular disease, hypertension, diabetes and smoking was identified. Among these, we compared LinS and VolS between sexes and across age groups ( |
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ISSN: | 0009-7322 1524-4539 |
DOI: | 10.1161/circ.141.suppl_1.P140 |