Brain Metastases, Adult Clinical Trial
Official title:
Intrafractional 6D Head Movement With Mask Fixation During Stereotactic Intracranial RT-sessions
Verified date | January 2019 |
Source | Medical University Innsbruck |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This study investigates the intrafractional accuracy of a frameless thermoplastic mask used
for head immobilization during stereotactic radiotherapy. Non-invasive masks cannot
completely prohibit head movements. Previous studies attempted to estimate the magnitude of
intrafractional inaccuracy by means of pre- and postfractional measurements only. However,
this might not be sufficient to accurately map also intrafractional head movements.
Intrafractional deviation of mask-fixed head positions is measured in five patients during a
total of 94 fractions by means of close-meshed repeated ExacTrac measurements conducted
during the entire treatment session. From the obtained data the investigators evaluate the
need to adjust safety margins around the gross tumor volume (GTV) whenever the investigated
thermoplastic mask is used instead of invasive ring fixation.
Status | Completed |
Enrollment | 5 |
Est. completion date | September 1, 2015 |
Est. primary completion date | September 1, 2015 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - single intracranial tumour or metastasis - stereotactic radiation therapy planned - immobilization with thermoplastic mask |
Country | Name | City | State |
---|---|---|---|
Austria | Medical University Innsbruck | Innsbruck |
Lead Sponsor | Collaborator |
---|---|
Medical University Innsbruck |
Austria,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 3D Head deviation | Length of 3D head position deviation during RT session | 5 to 20 days |
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