Cardiac Measurement Operations; Measurement Tool Operations; Calculation Tool Operations; Study Tool Operations - Mindray DC-8 EXP Operator's Manual

Types
MV ARa(lateral)
MV DRa(lateral)
Calculation /
Study See below
6.4

Cardiac Measurement Operations

Tips: 1. See the table in "6.3 Cardiac Measurement Tools" above for measurement tools and
methods.
2. For the definitions of measurement, calculation and study, refer to "1.3
Measurement, Calculation and Study".
3. The order of the measurement items is presettable, see "2.4.2 Application
Measurement Preset" for details.
4. A measurement tool can be activated by clicking the item either in the measurement
menu or touch screen menu, it is described as "Select/Click ...(certain item) in the
measurement menu" in the following procedures.
5. Measurements of some tools described in this Chapter are to be performed in
several imaging modes, please select appropriate imaging modes before
measurement.
6.4.1

Measurement Tool Operations

1. Select the item/tool in the measurement menu.
2. Perform the measurement referring to methods in table above.
6.4.2

Calculation Tool Operations

1. Select the item/tool in the measurement menu.
2. The system calculates and displays the results after relating measurement items have been
completed.
6.4.3

Study Tool Operations

6.4.3.1 Left Ventricular Function
This group of studies is to estimates the Left Ventricular (LV) diastolic and systolic capabilities by a
series of clinical indices measured on B or M image. Except for calculating left ventricular volume
and end diastole and end systole, they may calculate the following indices (not all indices are
calculated in every study, see Study Results table in each study for reference).
Result Descriptions
SV Stroke Volume
CO Cardiac Output
EF Ejection Fraction
SI SV Index
CI Cardiac output
Tools
Mitral Valve lateral Acceleration Rate
Mitral Valve lateral Deceleration
Rate
/
SV(ml) = EDV(ml)-ESV(ml)
CO(l/min) = SV(ml)×HR(bpm)/ 1000
EF(No unit) = SV(ml)/ EDV(ml)
SI(No unit) = SV(ml)/ Body Surface Area (m
CI(No unit) = CO(l/min)/Body Surface Area (m
Descriptions
Formulae
Methods or formulae
2
)
2
)
Cardiology 6-11