GE Vivid 7 User Manual
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Cardiac Measurement and Analysis Vivid7/Vivid7 PRO Users Manual217 FC092326-03 2D Area measurements 1. Generate the 2D image. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER and AREA assignable. 3. Press MEASURE on the Control Panel. 4. Select Area (trace) in the Measurement Menu (see Figure 6-2). 5. Trackball the cursor to the start point of the measurement. See the Status bar to get the next step to perform.6. Press SELECT to anchor the start point of the measurement. 7. Trace the area (planetary) with the Trackball. The measurement display color on the 2D image changes from green to red af- ter completion of the measurement.The current area and circumference values are displayed in the Measurement result table and are instantaneously updated when moving the cursor. 8. Press SELECT to complete the measurement. The measurement result is displayed in the Measurement result table. 9. To assign a label to the measurement, see page 227. The measurements displayed on the 2D image and the cor- responding results are numbered.10. Repeat steps 5 through 8 to make additional area measurements. 2D area measurement ratio 1. Generate the 2D image. 2. Press FREEZEto stop the cineloop. Alternative: Press CALIPER, MORE as- signable and AREA RATIO. 3. Press MEASURE on the Control Panel. 4. Select Area ratio in the Measurement Menu (see Figure 6- 2). 5. Perform two area measurements as described in steps 5 through 8 in the above section. See the Status bar to get the next step to perform.The measurement results including the ratio (%) of the two measured areas are displayed in the Measurement result table. Editing 2D Area measurements 1. Trackball the cursor to the anchor point of the area measurement to modify. 2. Press SELECT twice (Double-click) to select the anchor point. The selected marker turns green and is unanchored. 3. With the Trackball, reposition the marker. 4. Press the SELECT to anchor.
Cardiac Measurement and Analysis 218Vivid7/Vivid7 PRO Users Manual FC092326-03 2D Volume measurements The measurements described in this section enable volume measurement in a defined zone. The measurements tool generates results by two methods: For measurement formulae, refer to the Reference Manual.• Method of Disk (displayed as Vmod in the Measurement result table), known as Simpsons method. • Area/Length method (displayed as Va -l in the Measurement result table). To perform a volume measurement: 1. Generate the 2D image. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER and VOLUME assignable. 3. Press MEASURE on the Control Panel. 4. Select Vo l u m e in the Measurement Menu (see Figure 6-2). 5. Trackball the cursor to the start point where a volume is to be measured. See the Status bar to get the next step to perform.6. Press SELECT to anchor the start point of the measurement. 7. Trackball the cursor to draw the length. 8. Press SELECT to anchor the second point. 9. Drag the cursor with the Trackball to outline the area of interest. The measurement display color on the 2D image changes from green to red af- ter completion of the measurement.The current area, circumference and Area/Length Volume (Va-l) values are displayed in the Measurement result table (see Figure 6-2) and are instantaneously updated when moving the cursor. 10. Press SELECT to complete the measurement. The measurement results including Vmod (Simpson) are displayed in the Measurement result table (see Figure 6- 2). The measurements displayed on the 2D image and the cor- responding results are numbered.11. To assign a label to the measurement, see page 227. 12. Repeat steps 5 through 10 to make additional volume measurements. 2D Depth measurements The measurements described in this section enable depth measurement from the probe to a selected point. To perform a depth measurement: 1. Generate the 2D image. 2. Press FREEZE to stop the cineloop.
Cardiac Measurement and Analysis Vivid7/Vivid7 PRO Users Manual219 FC092326-03 3. Press MEASURE on the Control Panel. See the Status bar to get the next step to perform.4. Press the assignable POINT to select the depth measurement function. 5. Trackball the cursor to the position to measure. The current distance from the probe is displayed in the Measurement result table and is instantaneously updated when moving the cursor. The measurements displayed on the 2D image and the cor- responding results are numbered.6. Press SELECT to anchor the point. The depth value (cm) is displayed in the Measurement result table.
Cardiac Measurement and Analysis 220Vivid7/Vivid7 PRO Users Manual FC092326-03 M-Mode Measurements In M-Mode, the user can perform distance and time measurements. This measurement package has also the following pre-defined measurement studies: • LA/Ao • LV • RV M-Mode Length measurements 1. Generate the M-Mode image. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER on the con- trol panel and press CALIPER assignable. 3. Press MEASURE on the Control Panel. 4. Select caliper in the Measurement Menu. 5. Trackball the cursor to the start point of the measurement. 6. Press SELECT to anchor the start point of the measurement. See the Status bar to get the next step to perform.7. Trackball the cursor to the measurement end point. The current distance value is displayed in the Measurement result table and is instantaneously updated when moving the cursor. 8. Press SELECT to anchor the end point of the measurement. The measurement display color on the M-Mode changes from green to red af- ter completion of the measurement.The measurement result is displayed in the Measurement result table. 9. To assign a label to the measurement, see page 227. 10. Repeat steps 5 through 8 to make additional length measurements. The measurements displayed on the M- Mode image and the corresponding re- sults are numbered.Editing M-Mode Length measurements 1. Trackball the cursor to one of the anchor points of the measurement to modify. 2. Press SELECT twice (double-click). The selected marker turns green and is unanchored. 3. With the Trackball, reposition the marker to a new position. 4. Press SELECT. Ao/LA study 1. Generate the M-Mode image. 2. Press FREEZE to stop the cineloop.
Cardiac Measurement and Analysis Vivid7/Vivid7 PRO Users Manual221 FC092326-03 Alternative: Press CALIPER on the con- trol panel and press the AO/LA assign- able. 3. Press MEASURE on the Control Panel. 4. Select Ao/LA in the Measurement Menu. 5. Trackball the cursor along the time axis to the required point to start measurement of Aorta root diameter. See the Status bar to get the next step to perform.6. Press SELECT. The starting point for the measurement is anchored. 7. Trackball to the end point of the measurement. The current value is updated while mov- ing the cursor.8. Press SELECT. The measurement end point is anchored and the value is displayed in the Measurement result table. A new free-moving cursor is displayed on the image, ready for the next measurement. 9. Repeat steps 5, through 8 to measure Left Atrium. The LA value is displayed in the Measurement result table. The Ao/LA ratio is displayed in the Measurement result table. LV study The LV study consists of measurements in fixed-time mode in both systole and diastole of: • Interventricular septum thickness (IVS) • Left ventricular internal dimension (LVID) • Left ventricular posterior wall thickness (LVPW) The following parameters are also calculated: • EDV (End diastole volume) • ESV (End systole volume) • SV (Stroke volume) • EF (Ejection Fraction) To perform LV study 1. Generate the M-Mode image. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER on the con- trol panel and press the LV STUDY as- signable. 3. Press MEASURE on the Control Panel. 4. Select LV study in the Measurement Menu. 5. Trackball the cursor along the time axis to the required point to start measurement of IVSd. 6. Press SELECT. The starting point for the measurement is anchored. 7. Trackball to the end point of the measurement.
Cardiac Measurement and Analysis 222Vivid7/Vivid7 PRO Users Manual FC092326-03 8. Press SELECT. The IVSd measurement end point is anchored and the value is displayed in the Measurement result table. The end point of the IVSd is also the start point for the LVIDd. 1. Trackball to the end point of the LVIDd measurement. 2. Press SELECT. The LVIDd measurement end point is anchored and the value is displayed in the Measurement result table. The end point of the LVIDd is also the start point for the LVPWd. 1. Trackball to the end point of the LVPWd measurement. 2. Press SELECT. The LVPWd measurement end point is anchored and the value is displayed in the Measurement result table. 3. Repeat steps 5, through 2 to measure IVS, LVID and LVPW in systole. RV study The RV study consists of measurement in fixed-time mode of Right ventricular internal dimension (RVID) in both diastole and systole. To perform RV study 1. Generate the M-Mode image. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER on the con- trol panel and press the RV STUDY as- signable. 3. Press MEASURE on the Control Panel. 4. Select RV study in the Measurement Menu. 5. Trackball the cursor along the time axis to the required point to start measurement of RVIDd. 6. Press SELECT. The starting point for the measurement is anchored. The current value is updated while mov- ing the cursor.7. Trackball to the end point of the measurement. 8. Press SELECT. The measurement end point is anchored and the RVIDs measurement value is displayed in the Measurement result table. A new free-moving cursor is displayed on the image, ready for the next measurement. 9. Repeat steps 5, through 8 to measure RVIDs.
Cardiac Measurement and Analysis Vivid7/Vivid7 PRO Users Manual223 FC092326-03 The RVIDs value is displayed in the Measurement result table.
Cardiac Measurement and Analysis 224Vivid7/Vivid7 PRO Users Manual FC092326-03 Doppler Measurements The following measurements may be calculated on Doppler mode spectra: For measurement formulae, refer to the Reference Manual.• Maximum (peak) and mean velocity • Maximum and mean pressure gradient • Pressure half-time (PHT) • Velocity time integral (VTI) • Mitral valve area (MVA), derived from PHT Velocity and Pressure point measurements 1. Generate the spectrum to be measured. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER on the con- trol panel and press the POINT CALIPER assignable. 3. Press MEASURE on the Control Panel. 4. Select Point Caliper in the Measurement Menu. 5. Trackball the cursor to the position to measure. The current velocity is displayed in the Measurement result table and is instantaneously updated when moving the cursor. The measurement display on the spec- trum and the corre- sponding results are numbered.6. Press SELECT to anchor the point. The velocity (m/s) and pressure (mmHg) values are displayed in the Measurement result table. Velocity and Pressure caliper measurements 1. Generate the spectrum to be measured. 2. Press FREEZE to stop the cineloop. Alternative: Press CALIPER on the con- trol panel and press the CALIPER assign- able. 3. Press MEASURE on the Control Panel. 4. Select Caliper in the Measurement Menu. 5. Trackball the cursor to the start point of the measurement. 6. Press SELECT to anchor the start point of the measurement. 7. Trackball the cursor to the measurement end point. The current velocity and pressure values are displayed in the Measurement result table and are instantaneously updated when moving the cursor. The measurement display color on the spectrum changes from green to red af- ter completion of the measurement.8. Press SELECT to anchor the end point of the measurement. The following measurement results are displayed in the Measurement result table: • Velocity and pressure at anchor point positions • Velocity (V3) and pressure (p3) differences between anchor point position
Cardiac Measurement and Analysis Vivid7/Vivid7 PRO Users Manual225 FC092326-03 • Time difference (dT) between anchored points position The measurement display on the spec- trum and the corre- sponding result are numbered.9. To assign a label to the measurement, see page 227. 10. Repeat steps 5 through 8 to make additional measurements. Manual Doppler trace measurements Adjust Compress and reject controls to optimize the Doppler signal.1. Generate the spectrum to be measured. 2. Press FREEZE to stop the cineloop. 3. Press MEASURE on the Control Panel. Alternative: Press CALIPER on the con- trol panel and press the MANUAL TRACE assignable 4. Select Manual trace in the Measurement Menu. A vertical green cursor is displayed on the spectrum. 5. Trackball the cursor to the start point on the left side of the trace. 6. Press SELECT to anchor the start point of the measurement. 7. With the trackball, trace the Doppler envelope. The trace can be adjusted, while tracing, by moving the cursor backward to erase portion of the trace (or the entire trace) and then create the trace again. The measurement display color on spectrum changes from green to red af- ter completion of the measurement.8. Press SELECT to complete the trace. The following measurement results are displayed in the Measurement result table: • Maximum and mean Velocities • Maximum and mean pressures • Env. Ti • Velocity time integral (VTI) 9. Trackball the cursor to the start point of the next heart beat. 10. Press the SELECT to anchor the next heart beat starting point. The heart rate (BPM) is displayed in the Measurement result table. Automatic Doppler trace measurements Adjust Compress and reject controls to optimize the Doppler signal.1. Generate the spectrum to be measured. 2. Press FREEZE to stop the cineloop. 3. Press MEASURE on the Control Panel. Alternative: Press CALIPER on the con- trol panel and press the AUTO TRACE as- signable. 4. Select Auto Trace in the Measurement Menu. A vertical green cursor is displayed on the spectrum. 5. Trackball the cursor to the starting point. 6. Press SELECT to anchor the start point of the measurement.
Cardiac Measurement and Analysis 226Vivid7/Vivid7 PRO Users Manual FC092326-03 7. Trackball to the end trace position. 8. Press SELECT to anchor the end point of the trace. The trace is automatically generated and the following measurements are displayed in the Measurement result table: • Maximum and mean Velocities • Maximum and mean pressures • Env. Ti • Velocity time integral (VTI) 9. Trackball the cursor to the next heart beat. 10. Press SELECT to anchor the next heart beat starting point. The heart rate (BPM) is displayed in the Measurement result table. MV E/A ratio Adjust Compress and reject controls to optimize the Doppler signal.1. Generate the spectrum to be measured. 2. Press FREEZE to stop the cineloop. 3. Press MEASURE on the Control Panel. Alternative: Press CALIPER on the con- trol panel and press the MV E/A RATIO as- signable. 4. Select MV E/A ratio in the Measurement Menu. 5. Trackball the cursor to the peak of the E wave. 6. Press SELECT to anchor the point. 7.Drag cursor to baseline to mark dT. 8. Press SELECT on the trackball area to anchor the second point. 9. Trackball the cursor to the peak of A wave. 10. Press SELECT to anchor the point. the velocity at peak for E and A waves and the calculated E/A ratio are displayed in the Measurement result table.