ESTRO 2024 - Abstract Book

S5456

RTT - Patient care, preparation, immobilisation and IGRT verification protocols

ESTRO 2024

The analysis of amplitude variation from Pre-CT Training to the Treatment phase yielded an average standard deviation of 0.409 cm. This value surpasses the departmental threshold of 0.3 cm, indicating a notable level of variability beyond the acceptable limits.

Conclusion:

Currently, we are in the process of standardizing the Region of Interest (ROI) structure set and position of ROI in CT Education, CT-SIM, and treatment using the SGRT system. This standardization will improve our surface tracking. However, we have a limitation in pre-CT education and CT-SIM, as the dimensions of the tracker are 5x5. For ongoing RT treatment, the dimensions are user-dependent.

Keywords: DIBH, SGRT, amplitude variation, standard deviation (SD), Pre-Simulation Education (PSE), Region of interest (ROI).

Keywords: SGRT,DIBH,Amplitude variation

References:

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Poster Discussion

Respiratory Motion Management in Stereotactic Ablative Body Radiotherapy for Renal Cell Carcinoma

Rachael N Webster 1,2 , Amanda Webster 1,3 , Harshani Green 4,5

1 University College London Hospitals Foundation Trust, Radiotherapy and Proton Beam Therapy, London, United Kingdom. 2 Sheffield Hallam University, Health and Wellbeing, Sheffield, United Kingdom. 3 Cancer Research UK, RadNet London, London, United Kingdom. 4 The Royal Marsden NHS Hospital Foundation Trust, Oncology, London, United Kingdom. 5 Institute of Cancer Research, Cancer, London, United Kingdom