Evaluation of the new respiratory gating system
Abstract Objective The newly released Respiratory Gating for Scanners (RGSC; Varian Medical Systems, Palo Alto, CA, USA) system has limited existing quality assurance (QA) protocols and pertinent publications. Herein, we report our experiences of the RGSC system acceptance and QA. Methods The RGSC s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-12-01
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| Series: | Precision Radiation Oncology |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/pro6.34 |
| _version_ | 1818651802799702016 |
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| author | Chengyu Shi Xiaoli Tang Maria Chan |
| author_facet | Chengyu Shi Xiaoli Tang Maria Chan |
| author_sort | Chengyu Shi |
| collection | DOAJ |
| description | Abstract Objective The newly released Respiratory Gating for Scanners (RGSC; Varian Medical Systems, Palo Alto, CA, USA) system has limited existing quality assurance (QA) protocols and pertinent publications. Herein, we report our experiences of the RGSC system acceptance and QA. Methods The RGSC system integration was tested with peripheral equipment, spatial reproducibility, and dynamic localization accuracy for regular and irregular breathing patterns, respectively. A QUASAR Respiratory Motion Phantom and a mathematical fitting method were used for data acquisition and analysis. Results The results showed that the RGSC system could accurately measure regular motion periods of 3–10 s. For irregular breathing patterns, differences from the existing Real‐time Position Management (RPM; Varian Medical Systems, Palo Alto, CA) system were observed. For dynamic localization measurements, the RGSC system showed 76% agreement with the programmed test data within ±5% tolerance in terms of fitting period. As s comparison, the RPM system showed 66% agreement within ±5% tolerance, and 65% for the RGSC versus RPM measurements. Conclusions New functions and positioning accuracy improve the RGSC system's ability to achieve higher dynamic treatment precision. A 4D phantom is helpful for the QA tests. Further investigation is required for the whole RGSC system performance QA. |
| first_indexed | 2024-12-17T02:11:54Z |
| format | Article |
| id | doaj.art-002cd03c134d4b25b51c347fbea11028 |
| institution | Directory Open Access Journal |
| issn | 2398-7324 |
| language | English |
| last_indexed | 2024-12-17T02:11:54Z |
| publishDate | 2017-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Precision Radiation Oncology |
| spelling | doaj.art-002cd03c134d4b25b51c347fbea110282022-12-21T22:07:31ZengWileyPrecision Radiation Oncology2398-73242017-12-011412713310.1002/pro6.34Evaluation of the new respiratory gating systemChengyu Shi0Xiaoli Tang1Maria Chan2Memorial Sloan‐Kettering Cancer Center, New York City New York, USAMemorial Sloan‐Kettering Cancer Center, New York City New York, USAMemorial Sloan‐Kettering Cancer Center, New York City New York, USAAbstract Objective The newly released Respiratory Gating for Scanners (RGSC; Varian Medical Systems, Palo Alto, CA, USA) system has limited existing quality assurance (QA) protocols and pertinent publications. Herein, we report our experiences of the RGSC system acceptance and QA. Methods The RGSC system integration was tested with peripheral equipment, spatial reproducibility, and dynamic localization accuracy for regular and irregular breathing patterns, respectively. A QUASAR Respiratory Motion Phantom and a mathematical fitting method were used for data acquisition and analysis. Results The results showed that the RGSC system could accurately measure regular motion periods of 3–10 s. For irregular breathing patterns, differences from the existing Real‐time Position Management (RPM; Varian Medical Systems, Palo Alto, CA) system were observed. For dynamic localization measurements, the RGSC system showed 76% agreement with the programmed test data within ±5% tolerance in terms of fitting period. As s comparison, the RPM system showed 66% agreement within ±5% tolerance, and 65% for the RGSC versus RPM measurements. Conclusions New functions and positioning accuracy improve the RGSC system's ability to achieve higher dynamic treatment precision. A 4D phantom is helpful for the QA tests. Further investigation is required for the whole RGSC system performance QA.https://doi.org/10.1002/pro6.34breathing curvescomputed tomographydynamic phantomquality assuranceRGSC |
| spellingShingle | Chengyu Shi Xiaoli Tang Maria Chan Evaluation of the new respiratory gating system Precision Radiation Oncology breathing curves computed tomography dynamic phantom quality assurance RGSC |
| title | Evaluation of the new respiratory gating system |
| title_full | Evaluation of the new respiratory gating system |
| title_fullStr | Evaluation of the new respiratory gating system |
| title_full_unstemmed | Evaluation of the new respiratory gating system |
| title_short | Evaluation of the new respiratory gating system |
| title_sort | evaluation of the new respiratory gating system |
| topic | breathing curves computed tomography dynamic phantom quality assurance RGSC |
| url | https://doi.org/10.1002/pro6.34 |
| work_keys_str_mv | AT chengyushi evaluationofthenewrespiratorygatingsystem AT xiaolitang evaluationofthenewrespiratorygatingsystem AT mariachan evaluationofthenewrespiratorygatingsystem |