Samsung SONOACE R5 Manual do Utilizador Página 135
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Chapter 5 Measurements And Calculations
The equations used for D Velocity measurement are as follows:
Doppler Velocity (A/B)
This is a basic measurement that is available in Spectral Doppler Mode only. You can specify two points
in a Spectral Doppler image and measure the velocity at each point to calculate the ratio of the velocity
between them.
You can calculate up to 4 sets of velocity ratios. The points representing each set are dierentiated into
Point A and B.
1. Use the Softmenu switch [1] Distance to select Doppler Velocity (A/B). “Doppler Velocity (A/B)” is
displayed on the left side of the screen.
2. Specify two points to measure velocity for.
X
Place the cursor at a desired position with the trackball, and press the Set button.
3. When the measurement is nished, its result is shown on the screen.
X
V_A: Velocity at Point A
X
V_B: Velocity at Point B
X
RI: Resistivity Index
X
A/B: The Ratio of Velocity
Doppler Trace
This is a basic measurement that is available in Spectral Doppler Mode only. You can specify a point in
a Spectral Doppler image and trace a curve from that point to calculate the velocity, integral value and
average velocity of blood ow.
1. Use the Softmenu switch [1] Distance to select Doppler Trace. “Doppler Trace” is displayed on the
left side of the screen.
2. Trace a curve. The method for measuring a curve is the same as in “2D Distance (Trace).”
- Volume 1 1
- Safety Requirements 8
- Declarations: 9
- Read This First 10
- If You Need Assistance 11
- Revision History 12
- Table of Contents – Volume 1 13
- Chapter3 Starting Diagnosis 14
- Table of Contents 15
- Chapter 1 17
- Indication for Use 19
- Safety Signs 20
- Chapter 1 Safety 21
- Electrical Safety 24
- Mechanical Safety 33
- Safety Note 34
- Biological Safety 35
- Applying ALARA 36
- Direct Controls 36
- Indirect Controls 37
- Receiver Controls 37
- Additional Considerations 38
- Output Display Features 38
- Mechanical Index (MI) Display 39
- Thermal Index (TI) Display 39
- 2D-mode Controls 41
- Color and Power Controls 42
- M-mode and Doppler Controls 42
- Sample Volume Depth 43
- Application 43
- Related Guidance Documents 44
- - (0.23 alf) 45
- -(0.069 lf) 45
- Systematic Uncertainties 47
- Environmental Protection 49
- Introduction 51
- Specications 53
- Product Conguration 55
- Adjusting Brightness 56
- Control Panel 57
- Chapter 2 Introduction 59
- Keyboards 60
- Adjusting Control Panel 61
- Rear Panel 63
- Power Connection Part 64
- Peripheral Devices 65
- N N 66
- Connecting probes 67
- Accessory 68
- Starting Diagnosis 69
- Power Supply 71
- Probes & Applications 72
- Probe Setting Change 73
- Editing BodyMarker 74
- Add BodyMarkers 75
- Delete BodyMarkers 75
- Back to default BodyMarker 75
- Delete all BodyMarkers 75
- Save BodyMarkers 75
- Calc Sequence 76
- Patient Information 77
- Registering a New Patient 78
- [Figure 3.5 Search] 81
- Modifying Patient Information 83
- Diagnosis Modes 85
- Information 87
- Basic Use 88
- Frequency 89
- Harmonic 90
- Basic Modes 91
- Starting 2D Mode 92
- 2D Mode Menu 92
- Trapezoid 94
- 2D Mode Softmenu 96
- Entering and Exiting M Mode 97
- M Mode Screen 98
- M Mode Menu 98
- M Mode Softmenu 99
- Color Doppler Mode 100
- C Mode Screen 101
- C Mode Menu 101
- Operation Manual 102
- C Mode Softmenu 103
- Power Doppler Mode 104
- PD Mode Softmenu 105
- PD Mode Menu 105
- PW Spectral Doppler Mode 106
- Sample Volume 107
- Chapter 4 Diagnosis Modes 109
- Baseline 110
- Combined Modes 111
- Changing Menu 112
- Dual Mode 113
- 3D Mode 114
- Acquiring a 3D Image 115
- Viewing a 3D Image 116
- 3D Image Optimization 117
- Position 118
- Magnication 119
- Cut Mode 119
- Multi planar 120
- Reference Plane 120
- Measurements And 123
- Calculations 123
- Measurement Accuracy 125
- Ultrasound Velocity 126
- Doppler Signal Adjustment 126
- Aliasing 126
- Calculation Equation 126
- Human Error 126
- 2D Mode 127
- Doppler Mode 127
- Measurement Accuracy Table 128
- PW Spectral Doppler Mode 129
- Basic Measurements 130
- Distance Measurement 131
- 2D Distance (Trace) 132
- 2D Hip Joint 133
- M Distance 134
- Doppler Velocity 134
- Doppler Velocity (A/B) 135
- Doppler Trace 135
- 2D Ellipse 136
- Area = , (a, b: Axis) 137
- 22D Trace 137
- Volume Measurement 138
- Distance + Ellipse 139
- Things to note 140
- Softmenu 141
- Common Measurement Methods 142
- Limited Trace 143
- Manual Trace 143
- Volume Flow Measurement 144
- Stenosis Measurement 145
- OB Calculations 146
- Measurement Menu 147
- Automatic Calculation 150
- AFI (Amniotic Fluid Index) 150
- GYN Calculations 151
- Cardiac Calculations 153
- Vascular Calculations 158
- Urology Calculations 161
- 3 Distance 162
- 3 Distance * Factor 163
- Ellipsoid 163
- Sum of 20 Disks 165
- Fetal Echo Calculations 166
- Report 169
- Viewing Report 170
- Editing Report 170
- Comment 170
- Printing out Report 170
- Exporting Report 170
- Graph Function 171
- Viewing Graph 172
- Viewing History 172
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