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Your search keyword '"Lorentini, S"' showing total 19 results
Start Over Author "Lorentini, S" Journal radiotherapy and oncology
19 results on '"Lorentini, S"'

2. EP-1837 A new hybrid approach to allow robust Monte Carlo-based multi-field optimization in proton therapy

Author

Tommasino, F., primary, Widesott, L., additional, Fracchiolla, F., additional, Lorentini, S., additional, Righetto, R., additional, Algranati, C., additional, Scifoni, E., additional, Dionisi, F., additional, Scartoni, D., additional, Amelio, D., additional, Cianchetti, M., additional, Schwarz, M., additional, Amichetti, M., additional, and Farace, P., additional

Published
2019
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19. Supine craniospinal irradiation in pediatric patients by proton pencil beam scanning

Author

Paolo Farace, Carlo Algranati, R. Righetto, Barbara Rombi, Sabina Vennarini, L. Widesott, Maurizio Amichetti, Stefano Lorentini, F. Fellin, Nicola Bizzocchi, Marco Schwarz, F. Fracchiolla, Farace P., Bizzocchi N., Righetto R., Fellin F., Fracchiolla F., Lorentini S., Widesott L., Algranati C., Rombi B., Vennarini S., Amichetti M., and Schwarz M.

Subjects
Male, Organs at Risk, Supine position, Adolescent, Quality Assurance, Health Care, Proton, Patient Positioning, Craniospinal Irradiation, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, CSI, Pencil beam, Proton Therapy, Humans, Medicine, Radiology, Nuclear Medicine and imaging, Child, Pencil-beam scanning, Proton therapy, business.industry, Radiotherapy Planning, Computer-Assisted, Penumbra, Hematology, Oncology, Craniospinal, Child, Preschool, 030220 oncology & carcinogenesis, Ionization chamber, Female, business, Nuclear medicine, Medulloblastoma, Human, Radiotherapy, Image-Guided
Abstract

Background and purpose Proton therapy is the emerging treatment modality for craniospinal irradiation (CSI) in pediatric patients. Herein, special methods adopted for CSI at proton Therapy Center of Trento by pencil beam scanning (PBS) are comprehensively described. Materials and methods Twelve pediatric patients were treated by proton PBS using two/three isocenters. Special methods refer to: (i) patient positioning in supine position on immobilization devices crossed by the beams; (ii) planning field-junctions via the ancillary-beam technique; (iii) achieving lens-sparing by three-beams whole-brain-irradiation; (iv) applying a movable-snout and beam-splitting technique to reduce the lateral penumbra. Patient-specific quality assurance (QA) program was performed using two-dimensional ion chamber array and γ-analysis. Daily kilovoltage alignment was performed. Results PBS allowed to obtain optimal target coverage (mean D98%>98%) with reduced dose to organs-at-risk. Lens sparing was obtained (mean D1∼730cGyE). Reducing lateral penumbra decreased the dose to the kidneys (mean Dmean4cm (mean γ>95%) than at depths&nbsp

Published
2017
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