Evaluation of the Radionics Body Localizer System and XPLAN/IMRT for Extra-Cranial Sites: A Pilot Study
Evaluation of the Radionics Body Localizer System and XPLAN/IMRT for Extra-Cranial Sites: A Pilot Study
RATIONALE: A new radiation therapy planning system may help doctors plan better treatment for patients with cancer.
PURPOSE: This clinical trial is studying a new radiation therapy planning system in patients undergoing radiation therapy for extracranial cancer.
OBJECTIVES:
OUTLINE: Patients receiving radiotherapy have a Body Localizer cast constructed and undergo a CT scan while immobilized in the Body Localizer. Patients undergo another CT scan in the treatment position using the standard alpha cradle. The XPLAN™-intensity modulated radiation therapy (XPLAN™/IMRT)-generated treatment plan is compared to the standard treatment plan to verify that the calculated dose is within 2-3 percent of the planned dose using standard technique. Patients undergo sets of CT scans 3 additional times over the next few weeks for a total of 8 CT scans Patients may undergo additional CT scans before and after radiotherapy treatments for a maximum of 5 CT scans per week performed over the course of radiotherapy.
PROJECTED ACCRUAL: Approximately 60 patients will be accrued for this study.
DISEASE CHARACTERISTICS:
Cancer for which a course of radiotherapy to an extra-cranial site is required
Initial treatment field (or cone down field) must be no greater than 12 X 10 cm
PATIENT CHARACTERISTICS:
Age
Performance status
Life expectancy
Hematopoietic
Hepatic
Renal
Cardiovascular
Other
PRIOR CONCURRENT THERAPY:
Biologic therapy
Chemotherapy
Endocrine therapy
Radiotherapy
Surgery