Repeat CT scans to determine shape variation during radiotherapy of the esophagus in esophageal cancer patients: ReShape study

Repeat CT scans to determine shape variation during radiotherapy of the esophagus in esophageal cancer patients: ReShape study - ReShape

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON36849

Enrollment

Registered

2012-11-22

Start date

2012-12-18

Completion date

Unknown

Last updated

2024-07-22

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

Conditions

esophageal cancer

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Esophageal cancer cT1-3, any N WHO

Exclusion criteria

Exclusion criteria: Previous thoracic surgery Previous thoracic radiotherapy cT4

Design outcomes

Primary

Measure	Time frame
The intra- and inter fraction motility of the CTV (both random and systematic errors) will be used to design a margin recipe: based on the differences a formula will be given for the expansion from CTV to ITV, which will ensure a change for coverage of the target volume of at least 95% on every treatment day.	—

Secondary

Measure	Time frame
Based on the differences in the motility on the two 4DCT scans, it will be investigated whether one 4DCT scan is sufficient for determination of the intra-fraction motility.	—

Countries

Netherlands

Outcome results