Quality Assurance Program on Stereotactic Radiosurgery: Report from a Quality Assurance Task Group

ISBN-13: 9783540591993 / Angielski / Miękka / 1995 / 93 str.

Gunther H. Hartmann; Gunter H. Hartmann

Opis

Radiosurgery performed with a "Gamma Knife" or on a linac facility is a specific radiotherapy method to treat certain lesions in the brain with a high single radiation dose. Quality assurance in this field is of the utmost importance and is the subject of this book.

Spis treści

1 Introduction.- 1.1 Purpose of the Report.- 1.2 Definition of Key Terms.- 1.2.1 Accuracy and Precision.- 1.2.2 The Isocenter Concept.- 1.2.3 Target Point.- 1.2.4 Volumes.- 2 Quality Assurance Aspects and Requirements.- 2.1 Quality Assurance Aspects of Stereotactic Target Localization.- 2.1.1 Background.- 2.1.2 Key Parameters and Requirements.- 2.1.2.1 First Parameter.- 2.1.2.2 Second Parameter.- 2.1.2.3 Third Parameter.- 2.2 Quality Assurance Aspects of Dosimetry and Treatment Planning.- 2.2.1 Background.- 2.2.1.1 Dosimetry.- 2.2.1.2 Treatment Planning.- 2.2.2 Key Parameters and Requirements.- 2.3 Quality Assurance Aspects in Treatment Delivery.- 2.3.1 Background.- 2.3.1.1 Gamma Knife Radiosurgery.- 2.3.1.2 Linac-Based Radiosurgery.- 2.3.2 Key Parameters and Requirements.- 3 Description of Recommended Quality Assurance Tests.- 3.1 Stereotactic Localization and Immobilization.- 3.1.1 Major Quality Assurance Issues.- 3.1.2 Tests.- 3.2 Dosimetry and Treatment Planning.- 3.2.1 Major Quality Assurance Issues.- 3.2.2 Tests.- 3.3 Treatment Delivery.- 3.3.1 Major Quality Assurance Issues.- 3.3.2 Tests.- 3.3.2.1 Tests for Gamma Knife (Model B) Based Radiosurgery.- 3.3.2.2 Tests for Linac-Based Radiosurgery.- 3.3.2.3 Method Independent Treatment Delivery Tests.- 4 List of Tests.- 4.1 Stereotactic Localization and Immobilization.- 4.2 Dosimetry and Treatment Planning.- 4.3 Treatment Delivery.- 4.3.1 Tests for Gamma Knife (Model B) Based Radiosurgery.- 4.3.2 Tests for Linac-Based Radiosurgery.- 4.3.3 Method Independent Treatment Delivery Tests.- Appendix A. Accuracy Requirements for Dosimetry from Tumor Control Probability Data.- Appendix B. Suggestion for Testing a Treatment Planning System.- Appendix C. Correction of Spatial Distortion in Magnetic Resonance Imaging for Stereotactic Operation/Treatment Planning in the Brain.- References.

Blurb

Radiosurgery performed with the "Gamma Knife" or on a linac facility is a specific radiotherapy method to treat certain lesions in the brain with a high single radiation dose. Geometric miss of a radiosurgica target is considered the most likely serious error in a stereotactic radiosurgery treaatment. Therefore, the issue of quality assurance in stereotactic radiosurgery is a serious one for neurosurgeons, physicists, patients and those of us who wish to analyze the results of radiosurgery. The purpose of this book is to offer and describe a quality assurance program and procedures of the physical and technical aspects through identifying the sources of possible errors and suggesting quality assurance tests that should be performed in order for a stereotactic system to be used clinically.