A comparative study of 6D skull motion assessment and positional satisfaction between two classical hair setup variations of female patients with brain lesions treated using cyberknife stereotactic radiosurgery.

INTRODUCTION

The CyberKnife® (CK) system is capable of treating localised brain lesions with the help of a 6D skull tracking system. Hair position plays a crucial role in the success of CK radiosurgery for female brain lesion patients. This study aims to compare the intrafraction offset variation in two different hair setups patients treated using CK with U-Plast thermoplastic mask, in terms of 6D skull motion assessment and positional satisfaction.

METHODS

A retrospective analysis of 40 female intracranial lesion patients treated using CK stereotactic radiosurgery (SRS). Total populations of patients were divided into two groups based on their hair setup. Group A patients hair placed below the shoulder level, keeping their hair out and divided into two sections, and group B patients was positioned all their hair settled down on their head and shoulder area. 6D skull motion assessment between both hair setup and positional satisfaction was evaluated using Microsoft Excel statistical tools.

RESULTS

The study's results indicates the six directional mean intrafractional setup errors and 3D vector displacement of translational movements of group B were recorded significantly less as compared to the group A patients. Patient satisfaction regarding hair positioning in group B was 36.9 percent greater than in group A, while overall satisfaction in group B surpassed that of group A by 48.1 percent.

CONCLUSION

Study findings suggests significant differences in both 6D skull motion and positional satisfaction between the two groups, These findings emphasize the importance of considering group B hair setup variations in patient setup to enhance the efficacy and patient experience of CK radiosurgery.

IMPLICATIONS FOR PRACTICE

This study emphasizes the importance of group B type hair setup protocols in female patients undergoing CK-SRS.