Week 6 Chamber Quantification

Question 1

What is B mode

Answer 1

• B mode is known as 2D imagining

Question 2

What are the 2 methods used for linear measurements

Answer 2

• M mode
• 2D mode

Question 3

Where do you measure the LV on 2D mode?

Answer 3

Between the tips and pap muscle. Across the chordae tendinae

Question 4

What are the 3 diastolic measurements on plax

Answer 4

IVS, LVIDd, PW

Question 5

What is the systolic measurement performed on plax

Answer 5

LVIDs

Question 6

Normal values for LVIDd men and women

Answer 6

Men: 4.2-5.8, 5.9-6.3, 6.4-6.8, >6.8
Women: 3.8-5.2, 5.3-5.6, 5.7-6.1, >6.1

Question 7

values for LVIDs for men and women

Answer 7

Men: 2.5-4.0, 4.1-4.3, 4.4-4.5, >4.5
Women: 2.2-3.5, 3.6-3.8, 3.9-4.1, >4.1

Question 8

Values for LV wall thickness (septal and posterior) men and women

Answer 8

Men: .6-1.0, 1.1-1.3, 1.4-1.6, >1.6
Women: .6-.9, 1.0-1.2, 1.3-1.5, >1.5

Question 9

What is ejection fraction %

Answer 9

The % of the LV diastolic volume ejected during systole

Question 10

What is the formula for ejection fraction

Answer 10

EF=[(LVEDV-LVESV)/LVEDV] x 100

Question 11

What is the formula for teicholz and what is it

Answer 11

• Teicholz is a method of converting linear measurements into volumetric
• Vd = 7/(2.4 + LVIDd) x LVIDd^3
  -Vs = 7/(2.4 + LVIDs) x LVIDs^3
  EF = [(Vd-Vs)/Vd] x 100

Question 12

Values for EF% men and women

Answer 12

Men: 52-72, 41-51, 30-40, <30
Women: 54-74, 41-53, 30-40, <30

Question 13

Formula to calculate LV mass

Answer 13

[(LVIDd + PW)^3 - LVIDd^3] +.6g

Question 14

R wave and T wave = what timing on the cardiac cycle?

Answer 14

R wave = end diastole
T wave = end systole