GE Vivid 7 User Manual
Have a look at the manual GE Vivid 7 User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 45 GE manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
Stress Echo Vivid7/Vivid7 PRO Users Manual177 FC092326-03 Editing/creating a template The stress package provides protocol templates for exercise as well as pharmacological stress examinations. The user can create new templates or modify existing templates to suit the individual needs. Up to ten projections and fourteen stress levels can be created in a template. Templates created may be temporary, used only during the current examination, or saved as new templates, for future use and reference. The editions that may be performed include: • Adding/deleting levels and projections, page 181 • Assigning new labels to levels and projections, page 182 • Defining level options, page 182 • Defining new groups, page 183 Templates are edited/created from the Template editor screen. Entering the Template editor screen 1. Press PROTOCOL to enter the stress echo mode. 2. Press the assignable TEMPLATE. The Template pop-up menu is displayed. 3. Trackball to Template Editor. 4. Press SELECT. The Template editor screen is displayed (see Figure 4-14).
Stress Echo 178Vivid7/Vivid7 PRO Users Manual FC092326-03 Template editor screen over view Figure 4-14: The Template editor screen Te m p l at e Parameter Description Te m p l a t e : • select a pre-defined template from the pop- up menu. The Protocol template preview (see below) is updated accordingly.
Stress Echo Vivid7/Vivid7 PRO Users Manual179 FC092326-03 Protocol template preview Template settings Parameter Description Protocol template preview: • displays an updated preview of the template accordingly to the settings applied. • To change Projection and Stress level labels, select a pre-defined label from the pop-up menu or press SELECT in the actual label field and type a new name. Q Stress acquisition: enables TVI data acquisition for QTVI Stress analysis. Parameter Description Template settings: • Cycles: select the number of cineloop heart cycles to store for each level from the drop-down menu. • Continuous capture: : enables continuous image acquisition throughout the level. The images acquired are temporarily stored in the units storage buffer. • Preview of store: : enables review and adjustment of cineloops before storage (see page 273 for further information). • Show reference: : displays a dual screen with the reference level (first or previous level) on the left and the live image on the right.
Stress Echo 180Vivid7/Vivid7 PRO Users Manual FC092326-03 Other options Parameter Description Grid size: • Enter the number of levels and projections for the selected template. Timers: • : starts T1 and T2 timers automatically Auto-start analysis: • : displays the Stress Echo Analysis screen when the last acquisition is performed. Smart Stress: • : stores a subset of the image acquisition settings (geometry incl. zoom, gain, compress, reject, power...etc) for each view in the protocol. Smart Stress enables to set image acquisition settings for each view at baseline level and automatically get the same image settings in the corresponding views in the next levels. In Continuous capture acquisition at peak stress, the active cell must be moved manually through the views using the arrow buttons (or foot pedal). Reference image: • When Show Reference is selected (see page 179), selects either corresponding baseline loop or corresponding loop from the previous level to be displayed as reference image during acquisition.
Stress Echo Vivid7/Vivid7 PRO Users Manual181 FC092326-03 Pre-defined groups Editing/Creating a template Selecting a base template to edit 1. Trackball to the Template pop-up menu on the upper left corner of the Template editor screen. 2. Press SELECT on the arrow. The Template pop-up menu is displayed. Determine the re- quired number of projections and lev- els you need and se- lect the most appropriate founda- tion template.3. Trackball to the base template to edit. 4. Press SELECT. The selected template is displayed in the Protocol template preview field, showing the levels and projections and their labels. Adding/deleting levels and projections 1. Enter the number of levels and projections in the Grid size field (see Figure 4-14). The new grid size is displayed in the Protocol template preview field. 2. Press New Template to create a new template. Parameter Description Pre-defined groups: • Shows the image groups created. • New group: creates a new image group. Select the desired images on the template preview (see page 183). • Update group: edits a selected group after new loop selection on the template preview (see page 183). • Delete group: deletes selected group (see page 183).
Stress Echo 182Vivid7/Vivid7 PRO Users Manual FC092326-03 Or Press Save Template to update the base template. The timers can also be started or stopped at any time during stress exam- ination using the assignables T1 and T2 on the control panel.Display timer(s) 1. Check the box(es) to display timer(s) as specified (see Figure 4-14). Star t analysis automatically 1. Check Auto start analysis to display the Stress Echo Analysis screen when the last acquisition is performed. Assigning new labels to levels and projections 1. In the Protocol template preview field, Trackball to the Label field that is to be changed. 2. Select the Label pop-up menu and press SELECT on the desired pre-defined label. Or • If the Label field is empty: Press SELECT and enter the label or projection name. • If the Label field has a name to be changed: Press SELECT twice (double-click) to highlight the text to be replaced and enter the new label or projection name. Configuring levels The following options can be set up for each level: Number of cycles to be stored in the cineloop: 1. Enter the desired number in the Cycles field. Up to four cycles/cineloop can be stored. Continuous capture 1. Check Continuous capture if continuous image acquisition throughout the level is desired. When Continuous capture is selected, preview of cineloop and reference display (see below) during acquisition are not possible. Preview of store 1. Check Preview of store if review and adjustment of cineloops before storage is desired. Show reference 1. Check Show reference if the display of the corresponding reference loop is desired during acquisition (dual screen
Stress Echo Vivid7/Vivid7 PRO Users Manual183 FC092326-03 mode). Adding a group 1. In the Protocol template preview field select the cells to be part of the group. 2. In the Pre-defined group field, press New group. A dialogue box is displayed asking the user to enter a name for the new group. 3. Enter the group name. 4. Press OK. The new group is displayed in the Pre-defined group field. Updating an existing group A selected group is highlighted by a yellow frame.1. In the Pre-defined group field, select the group to edit. The selected cell are highlighted in the Protocol template preview field. 2. Either select (a) new cell(s) to add to the group or deselect (an) existing cell(s) to remove from the group. 3. Press Update group in the Pre-defined group field. The display in the Protocol template preview field is updated accordingly. Deleting a group A selected group is highlighted by a yellow frame.1. In the Pre-defined group field, select the group to delete. 2. Press Delete group. The group is removed from the list in the Pre-defined group field.
Stress Echo 184Vivid7/Vivid7 PRO Users Manual FC092326-03
Contrast Imaging Vivid7/Vivid7 PRO Users Manual185 FC092326-03 Chapter 5 Contrast Imaging This chapter includes the following information: • Introduction ................................................................................... .. 186 • Data acquisition ............................................................................ .. 188 • Left Ventricular Contrast Imaging ............................................. 188 • Myocardial Contrast Imaging ................................................... 194 • Real-Time Myocardial Contrast Imaging .................................. 202
Contrast Imaging 186Vivid7/Vivid7 PRO Users Manual FC092326-03 Introduction The two basic steps of contrast imaging are data acquisition and quantification. Data acquisition is described in this chapter. Quantification is described in Chapter 7, ’Quantitative Analysis’ on page 233. Data acquisition Three main acquisition applications are available: • Left Ventricular Contrast imaging: optimized for endocardial border detection and assessment of wall motion and wall thickening. • Myocardial Contrast imaging: optimized for assessment of myocardial perfusion. The MC Contrast application is pre-configured to give access to high power settings of the Coded Harmonic Angio technique, which combines the strength of harmonic imaging and power Doppler. MC Contrast application shall be used in intermittent mode. The application is intended for clinical research. • Real-time Myocardial Contrast imaging (RTMC): is intended for visualization of myocardial perfusion by the use of ultrasound contrast agents. As opposed to MC Contrast, RTMC will perform myocardial contrast imaging in a non-triggered mode. The application is intended for clinical research. Quantification Refer to Chapter 7, ’Quantitative Analysis’ on page 233.Quantification enables the user to perform the following analysis: • Time-Intensity analysis: allows instant time-intensity calculation from up to eight regions of interest (Angio power or tissue intensity display). • Curve fitting analysis: for research studies of myocardial perfusion rates using contrast agents. • Arbitrary Anatomical M-Mode (Curved and Straight): M- WARNINGMC Contrast and Real Time MC applications are for research purposes only. Diagnosis must not be based on results achieved by contrast analysis alone.