Improving the accuracy of carbon-ion beam dose calculations using Dual Energy CT

Improving the accuracy of carbon-ion beam dose calculations using stopping power ratios estimated using dual energy CT - Improving the accuracy of carbon-ion beam dose calculations using stopping power ratios estimated using dual energy CT

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000052288

Enrollment

Registered

2023-10-02

Start date

2023-10-10

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Head and neck cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) head and neck cancer 2) Be over 20 years old. 3) Performance status (ECOG) is 0-1. 4) Written consent will be obtained from the research subject to participate in this research.

Exclusion criteria

Exclusion criteria: 1) Patients in which metals other than metal markers for treatment have been placed in the body, affecting radiation calculations. 2) Patients that have been judged by a physician, such as a researcher, to be unsuitable for this study due to medical or other reasons.

Design outcomes

Primary

Measure	Time frame
Dose distribution calculated for Dual Energy CT and Single Energy CT images and dose to OAR and planning target volume in DVH analysis	—

Secondary

Measure	Time frame
Estimated range of each beam calculated for Dual Energy CT and Single Energy CT images and distribution of stopping power ratio for each tissue	—

Countries

Japan

Contacts

Public ContactSHINOTO MAKOTO

National Institutes for Quantum Science and Technology QST hospital

shinoto.makoto@qst.go.jp0432063306

Outcome results