Patient-related quality assurance with different combinations of treatment planning systems, techniques, and machines

被引:0
作者
Steiniger, Beatrice [1 ]
Berger, Rene [2 ]
Eilzer, Sabine [3 ]
Kornhuber, Christine [4 ]
Lorenz, Kathleen [5 ]
Peil, Torsten [6 ]
Reiffenstuhl, Carsten [7 ]
Schilz, Johannes [8 ]
Schroeder, Dirk [9 ]
Schwedas, Michael [1 ]
Pensold, Stephanie [10 ]
Walke, Mathias [11 ]
Weibert, Kirsten [1 ]
Wolf, Ulrich [12 ]
Wiezorek, Tilo [1 ]
机构
[1] Univ Hosp Jena, Dept Radiat Oncol, Bachstr 18, D-07743 Jena, Germany
[2] SRH Hosp Gera, Dept Radiat Oncol, Str Friedens 122, D-07548 Gera, Germany
[3] Site Martin Luther Hosp, Radiat Therapy Berlin Southwest, Caspar Theyss Str 33, D-14193 Berlin, Germany
[4] Univ Hosp Halle, Dept Radiat Oncol, Ernst Grube Str 40, D-06120 Halle, Saale, Germany
[5] Hosp Chemnitz, Dept Radiat Oncol, Burgerstr 2, D-09113 Chemnitz, Germany
[6] MVZ Ctr Radiat Oncol Halle GmbH, Niemeyerstr 24, D-06110 Halle, Saale, Germany
[7] Univ Hosp Carl Gustav Carus, Dept Radiat Oncol, Fetscherstr 74, D-01304 Dresden, Germany
[8] Helios Hosp Erfurt, Dept Radiat Oncol, Nordhauser Str 74, D-99089 Erfurt, Germany
[9] SRH Cent Hosp Suhl, Dept Radiat Oncol, Albert Schweitzer Str 2, D-98527 Suhl, Germany
[10] Community Hosp Dresden Friedrichstadt, Dept Radiat Oncol, Friedrichstr 41, D-01067 Dresden, Germany
[11] Otto von Guericke Univ, Dept Radiat Oncol, Leipziger Str 44, D-39120 Magdeburg, Germany
[12] Univ Hosp Leipzig, Dept Radiat Oncol, Stephanstr 9a, D-04103 Leipzig, Germany
关键词
Radiotherapy; intensity-modulated; Linear accelerators; Radiation oncology; Organs at risk; Calibration; GAMMA INDEX; ARC THERAPY; QA SYSTEMS; IMRT QA; VERIFICATION; DELIVERY; ARCCHECK; ERRORS; IMPACT;
D O I
10.1007/s00066-016-1064-y
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose This project compares the different patient-related quality assurance systems for intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy (VMAT) techniques currently used in the central Germany area with an independent measuring system. Materials and methods The participating institutions generated 21 treatment plans with different combinations of treatment planning systems (TPS) and linear accelerators (LINAC) for the QUASIMODO (Quality ASsurance of Intensity MODulated radiation Oncology) patient model. The plans were exposed to the ArcCHECK measuring system (Sun Nuclear Corporation, Melbourne, FL, USA). The dose distributions were analyzed using the corresponding software and a point dose measured at the isocenter with an ionization chamber. Results According to the generally used criteria of a 10 % threshold, 3 % difference, and 3 mm distance, the majority of plans investigated showed a gamma index exceeding 95 %. Only one plan did not fulfill the criteria and three of the plans did not comply with the commonly accepted tolerance level of +/- 3 % in point dose measurement. Conclusion Using only one of the two examined methods for patient-related quality assurance is not sufficiently significant in all cases.
引用
收藏
页码:46 / 54
页数:9
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