ECHO 2013 / Quantifying the Left Heart (LV and LA) Basic and Advanced Measurements
.pdfQuantifying the Left Heart (LV
and LA): Basic and Advanced
Measurement*
Omar Khalique, MD
Instructor in Clinical Medicine,
Columbia University Medical Center
*Lang RM et al. , ASE Committee Guidelines
Disclosure Statement of Financial Interest
I, Omar Khalique, DO NOT have a financial interest/arrangement or affiliation with one or more organizations that could be perceived as a real or apparent conflict of interest in the context of the subject of this presentation.
Assessment of the Left Ventricle
Linear Measurements
•Parasternal long-axis or short-axis views
•2D or M-Mode (preferably 2-D guided)
•Measure at level of mitral leaflet tips
•Care must be taken not to foreshorten
•IVS, LVID, PW: use blood tissue interface as a boundary
•End-diastole
-largest dimension, or frame after mitral closure
End-systole
-smallest dimension, or frame preceding mitral valve opening
Linear Measurements
Linear Measurements
•Ideal to average over several cardiac cycles
•Beware of the RV portion of septum, moderator band, and chordae in LV: may cause overestimation of wall thickness
•M-Mode measurements larger than 2D (ULN LVIDd 5.5 cm vs. 5.2 cm)