Oh, J. K., J. B. Seward, and A. J. Tajik. The Echo Manual. 3rd Edition, Boston: Philadelphia: Lippincott Williams
and Wilkins, (2007), 73-76, 210.
ERO = MV flödeshastighet/MR-hast. * 100
Ejektionsfraktion (EF) i procent
Oh, J. K., J. B. Seward, A. J. Tajik. The Echo Manual. 3rd Edition, Philadelphia: Lippincott Williams and Wilkins,
(2007), 115-116.
EF = ((LVEDV – LVESV) / LVEDV) * 100 %
där:
EF = ejektionsfraktion
LVEDV = vänster kammares slutdiastoliska volym
LVESV = vänster kammares slutsystoliska volym
Förfluten tid (ET) i ms
Oh, J. K., J. B. Seward, A. J. Tajik. The Echo Manual. 3rd ed., Philadelphia: Lippincott Williams, and Wilkins,
(2007), p.147, 148, figure 9-8
ET = tiden mellan hastighetsmarkörer i millisekunder
Vänster förmaksvolym
Lang R. et al. "Recommendations for Cardiac Chamber Quantification: A report from the American Society
of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group,
Developed in Conjunction with the European Association of Echocardiography, a Branch of the European
Society of Cardiology." J Am Soc Echocardiography (2005), 18:1440-1463.
Lang R, Bierig M, Devereux R, et al. "Recommendations for Cardiac chamber Quantification by
Echocardiography in Adults: An Update from the American Society of Echocardiography and the European
Association of Cardiovascular Imaging." J Am Soc Echocardiography (2015), 28:1-39.
LA Vol = π/4(h) Σ(D1)(D2)
där:
LA Vol = vänster förmaksvolym i ml
h = höjd av staplade ovala diskar som utgör LA
D1 = ortogonal mindre axel
D2 = ortogonal större axel
2-plans Simpsons regel (diskmetod)
LA Vol = π/4(h) Σ(D1)(D2)
Publikationer om mätning samt terminologi
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