FujiFilm SonoSite Edge II User Manual page 122

Heart Rate (HR) in bpm
HR = 3 digit value input by user or measured on M Mode and Doppler image in one heart cycle
Interventricular Septum (IVS) Fractional Thickening, percent
Laurenceau, J. L., M.C. Malergue. The Essentials of Echocardiography. Le Hague: Martinus Nijhoff, (1981), 71.
IVSFT = ((IVSS – IVSD)/IVSD) * 100%
where:
IVSS = Interventricular Septal Thickness at Systole
IVSD = Interventricular Septal Thickness at Diastole
Isovolumic Relaxation Time (IVRT) in msec
Oh, J. K., J. B. Seward, and A. J. Tajik. The Echo Manual. 3rd Edition. Philadelphia: Lippincott Williams and
Wilkins, (2007), 123-124.
|time a - time b|
IVC Collapse
Lyon M, Verma N. "Ultrasound guided volume assessment using inferior vena cava diameter." Open Emerg Med
J. (2010) 3:22-24.
(IVCd exp – IVCd insp)/IVCd exp
where:
expiration (exp) = maximum diameter (Max D)
inspiration (insp) = minimum diameter (Min D)
Left Atrium/Aorta (LA/Ao)
Feigenbaum, H. Echocardiography. Philadelphia: Lea and Febiger, (1994), 206, Figure 4-49.
Left Atrial Volume
Lang R. et al. "Recommendations for Cardiac Chamber quantification by Echocardiography in Adults: An
update from the American Society of Echocardiography and European Association of Cardiovascular
Imaging." J Am Soc Echocardiography, January (2015), 20-28.
LA Vol = /4(h) (D1)(D2)
where:
LA Vol = Left Atrial Volume in ml
116 Measurement publications and terminology