ESTRO 2024 - Abstract Book

S3835

Physics - Image acquisition and processing

ESTRO 2024

Conclusion:

The results demonstrate that online dose modulation for sequence scanning 4DCT imaging has only minor impact on resulting images but has the potential to considerably reduce the dose to the patient. GT-to-DM image differences were mainly due to heart phase differences during reconstruction that are inherent to respiratory-correlated 4DCT.

Keywords: 4DCT imaging, dose modulation

References:

[1] Schwarz et al., Dose reduction in sequence scanning 4D CT imaging through respiratory signal-guided tube current modulation: A feasibility study, 2023, Medical Physics.

1392

Digital Poster

Dose reduction in radiotherapy CT scans: clinical experience using variable tube voltage

Marc Alomar, Adrià Marí, Carmen Gil, Juan Pablo Arias, Joan Font

Hospital Universitari Son Espases, Medical Physics, Palma, Spain