Therapy; Replanning - Profound Sonalleve MR-HIFU Instructions For Use Manual

Table of Contents

Advertisement

6. Workflow > 6.8. Therapy
1.
If you do not see any heating within 2 cm (0.8 inch) of the intended location, check that you have
the latest image. This will rule out possible problems with updating the images.
2.
To make sure that the scanner table is completely down, check the scanner table height.
3.
If you do not see any heating in the intended location, look at heating outside the intended
location. If you can see some heating, drag the offset marker to the center of the observed heating.
4.
If you have the latest image and you can see some heated pixels in the heated area, repeat the
test sonication with a higher power level. Increase the power level by the smallest step available.
Stop before using a power level that could cause thermal dose in the tissue. If no heating takes
place at safe test sonication power levels, stop the treatment and remove the patient from the
table. Use a phantom and troubleshoot the reason for the power loss.

6.8. Therapy

The Therapy stage includes five tabs for carrying out different actions during the treatment:
The Replanning tab allows you to select, add or remove treatment cells and add markers to aid
in monitoring.
On the Sonicate tab, you can start, stop and monitor the progress of the sonication.
On the Decisions tab, you can accept or adjust the heating location.
The Analysis tab displays the temperature curve for a cell or a profile and sonication statistics of
the selected treatment cell.
On the Scan tab, you can start intermediate scan protocols to monitor the progress of the
treatment.
In addition, you must plan the sonication order and determine the power level to be used for each
treatment cell type.

6.8.1. Replanning

This stage is not mandatory but can be performed before starting the sonication treatment.
If necessary, you can add, move or remove treatment cells.
You can also add graphical markers around anatomies to monitor patient movement. See
6.6.6.1. How to use markers and why ?.
You can add a freehand Warning ROI to monitor slices. Mark anatomical structures where
temperature rise is not wanted. The warning temperature level can be edited.
You can add OARs.
Instructions for Use
109745C2 / 02-2022
118 (192)

Advertisement

Table of Contents
loading

Related Products for Profound Sonalleve MR-HIFU

Table of Contents