Table 1.
Radiation therapy centers currently participating in the Pediatric Proton and Photon Therapy Comparison Cohort, including type of radiation therapy delivered and estimated numbers of eligible patients treated in 2007 to 2021
| Site name | Modality | Operation date (protons) | Proton therapy type | Eligible proton patients | Eligible photon patients |
|---|---|---|---|---|---|
| Massachusetts General Hospital | Protons | 2001 | Passive scatter and pencil beam | 1100 | 0 |
| University of Florida | Protons | 2006 | Passive scatter, uniform scanning, and pencil beam | 1500 | 0 |
| Mayo Clinic: Rochester | Protons/photons | 2015 | Pencil beam | 500 | 500 |
| Emory University | Protons/photons | 2018 | Pencil beam | 250-500 | 500 |
| The Ohio State University/Nationwide Children's Hospital | Photons | - | - | 0 | 500-1000 |
| Children's Hospital Los Angeles | Photons | - | - | 0 | 500-1000 |
| University of Colorado Denver | Photons | - | - | 0 | 500-1000 |
| Princess Margaret Cancer Center, Toronto | Photons | - | - | 0 | 1000 |
| University of Utah | Photons | - | - | 0 | 500-1000 |