Technical note: The effect of the 4-mm-collimator output factor on gamma knife dose distributions
| Autor: | Burke Dial, Robert Clark, Hassaan Alkhatib, William Neglia, Dimitris Mihailidis, Raleigh Boulware, Curtis Worthington, John P. Gibbons |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
gamma knife
medicine.medical_treatment helmet factor Dose distribution Astrocytoma Gamma knife Radiosurgery law.invention Arteriovenous Malformations Central Nervous System Neoplasms law Meningeal Neoplasms medicine Humans Radiology Nuclear Medicine and imaging Patient treatment Instrumentation Radiation business.industry Radiotherapy Planning Computer-Assisted radiosurgery Radiotherapy Dosage Technical note Collimator Neuroma Acoustic sense organs Technical Notes Meningioma Nuclear medicine business collimator factor |
| Zdroj: | Journal of Applied Clinical Medical Physics |
| ISSN: | 1526-9914 |
| DOI: | 10.1120/jacmp.v4i4.2512 |
| Popis: | We present results of investigations of the clinical significance of variations in the value of the 4-mm-collimator output factor, OF4/18. Changes in treatment volume, dose-volume histograms (DVHs), and isodose distributions were studied, by varying OF4/18 up to 20. The variations were performed on a sample of clinical patient treatment plans for which the 4 mm collimator was used. Although smaller effects are noted for the prescription isodose line, greater dosimetric changes occur for higher dose regions within the target. 2003 American College of Medical Physics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text