Patient setup can be challenging for eccentric brain targets.

What is the purpose of your study?

For the treatment of far-anterior and far-posterior field targets, the L-shape Y/Z slides were developed.

Describe your patient group.

Describe what you did.

The L-shape Y/Z slides are precision instruments for the treatment of far-anterior and far-posterior field lesions that cannot be reached with the standard Y/Z slides (Elekta). The actually available space within the Leksell coordinate frame model G includes any points with the coordinates of X= 10~190mm and Y= -10~210mm.

Describe your main findings.

In the standard Y/Z slides with stereotactic frame, the physically possible maximum y-axis range of treatment in the trunnion mode permits the coordinates of 25 to 175mm. The L-shape Y/Z slides are used for y-coordinates of -10 to 210mm. The material used for the L-shape Y/Z slides is lightweight aluminum.

Describe the main limitation of this study.

This was a limited test of functionality.

Describe your main conclusion.

The L-shape Y/Z slides used for gamma knife radiosurgery are a new design that can increase the range of y-axis.

Describe the importance of your findings and how they can be used by others.

These slides are easy to use, and are as safe as the standard Y/Z slides for the treatment.

Abstract

Patient setup can be challenging for eccentric brain targets.

For the treatment of far-anterior and far-posterior field targets, the L-shape Y/Z slides were developed.

The L-shape Y/Z slides are precision instruments for the treatment of far-anterior and far-posterior field lesions that cannot be reached with the standard Y/Z slides (Elekta). The actually available space within the Leksell coordinate frame model G includes any points with the coordinates of X= 10~190mm and Y= -10~210mm.

In the standard Y/Z slides with stereotactic frame, the physically possible maximum y-axis range of treatment in the trunnion mode permits the coordinates of 25 to 175mm. The L-shape Y/Z slides are used for y-coordinates of -10 to 210mm. The material used for the L-shape Y/Z slides is lightweight aluminum.

This was a limited test of functionality.

The L-shape Y/Z slides used for gamma knife radiosurgery are a new design that can increase the range of y-axis.

These slides are easy to use, and are as safe as the standard Y/Z slides for the treatment.