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TH‐C‐213A‐01: Prostate Brachytherapy Ultrasound Quality Assurance Following AAPM TG‐128
Author(s) -
Pfeiffer D,
Sutlief S
Publication year - 2009
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.3182651
Subject(s) - quality assurance , imaging phantom , brachytherapy , medical physics , dosimetry , ultrasound , radiation treatment planning , prostate brachytherapy , medicine , image quality , computer science , nuclear medicine , radiology , radiation therapy , artificial intelligence , external quality assessment , pathology , image (mathematics)
The goal of AAPM Task Group 128 is to provide guidance to physicists who are responsible for the quality assurance of ultrasound units used in prostate brachytherapy. Accurate imaging guidance and dosimetry calculation for prostate brachytherapy depend upon the quality and accuracy of the ultrasound image. Therefore, a robust quality assurance program for the ultrasound system is essential. Completion of the TG‐128 tests requires use of a specialized ultrasound phantom, a water bath, and other equipment. Some care and creativity is needed to complete these tests. Quality assurance should include each link in the process from ultrasound image acquisition to visualization on the treatment planning system. The recommended tests include grayscale visibility, depth of penetration, axial and lateral resolution, distance measurement, area measurement, volume measurement, needle template/electronic grid alignment, and geometric consistency with the treatment planning computer. Learning Objectives: 1. To describe the methods of TG‐128: Quality assurance tests for prostate brachytherapy ultrasound systems 2. To highlight special techniques which may be used to accomplish the tests described in TG‐128. 3. To assess the relative likelihoods and significance of potential QA findings. 4. To review the materials and time needed to complete the TG‐128 tests.