Mindray DC-8 EXP

6-28 Cardiology
 Operating Procedures
See table above for methods and formulae of the measurement items.
6.4.3.5 LA Vol
LA Vol (Left Atrium Volume) used to estimate the size of left atrium.
LA Vol(A-L)
Estimates Left Atrium Volume using area and length.
 Study Items
Tools Descriptions Operations
LA Diam Left Atrium Diameter Distance in 2D General Measurements
LAA(A2C)
Left Atrium Area at apical 2-chamber
view
Area in 2D General Measurements
LAA(A4C)
Left Atrium Area at apical 4-chamber
view
 Study Results
Except for values in upper table, the following results can be obtained in this study:
Tools Descriptions Formulae
LA
Vol(A-L)
Left Atrium
Area
Diam(cm)LA )mLAA(A2C)(c)mLAA(A4C)(c
3
8
L)(ml)-Vol(ALA
22
×=
π
LA Vol
Index
(A-L)
Left Atrium
Area
LA Vol Index= LA Vol/ BSA
 Operating Procedures
See table above for methods and formulae of the measurement items.
LA Vol (Simp)
Estimates the left atrium volume using Simpson method. Performed at apical two-chamber view
and apical four-chamber view.
 Study Items and Results
Tools Descriptions Operations
LA Vol(A2C) Left Atrium Volume at apical 2-chamber view
Same as Simpson SP
measurement
LA Vol(A4C) Left Atrium Volume at apical 4-chamber view
LA Vol Index
(A2C/A4C)
Left Atrium Volume Index LA Vol Index= LA Vol/ BSA
 Operating Procedures
See “Simpson SP” for measurement procedures.
6.4.3.6 RA Vol (Simp)
Estimates right atrium volume using Simpson methods, performed at apical four-chamber view.