Right Ventricle Analysis (RVA)
Y
ou use RVA to establish end diastolic (ED) and end systolic (ES) contours of the right ventricle, to
determine ventricular volumes and wall moon. You can create, store and print reports of the analysis.
10.6.1 LVA / RVA Tasks
A set of predened tasks is used to ensure le or right ventricle analysis is performed in a logical way.
The LVA and RVA applicaons provide the following tasks in order:
• Select Series
• Calibraon
• End Diastole
• End Systole
• Result
Aer you select a series, the Calibraon task is automacally opened.
Aer you complete calibraon, the End Diastole task is automacally opened.
NOTE Auto calibraon is available if the appropriate image aributes in the selected series (source
image distance, source object distance, and image plane pixel spacing) did not change during
acquision. If you choose auto calibraon in this case, ensure that the region of interest is in
the isocenter.
10.6.2 Select Series Task
You use the Select Series Task to select a series for analysis.
NOTE Only XA exposure images can be used for analysis.
NOTE Series with characteriscs outside the following ranges are subopmal for analysis:
• Series with image pixel sizes greater than 1 mm.
• Series with frame rate less than 15 fps.
• Series captured with angulaon and rotaon angles that do match the angle
requirements for the selected volume method/regression formula.
1 Click Select Series in the tasks panel.
2 Select the desired image series in the Select Series dialog box and click Select to open the series.
10.6.3 Calibraon Task
To allow accurate measurement during analysis and to ensure that measurements are displayed in
relevant units, the image must be calibrated.
NOTE You can c
ongure default sengs for calibraon using the Customizaon screen. For details,
see Changing Default Calibraon Sengs (page 183).
You can perform c
alibraon automacally using Auto Calibraon, or manually using the Calibraon
task.
If you are only interested in calculang the ejecon fracon, you can skip calibraon for monoplane LVA
and monoplane RVA.
Condions
For manual calibraon, follow these guidelines:
2D Quant
ave Analysis (Opon) LVA / RVA
Azurion Release 1.2 Ins
trucons for Use 168 Philips Healthcare 4522 203 52421