Assessment of monitor unit limiting strategy using volumetric modulated arc therapy for cancer of hypopharynx

Highlights • MU limiting strategy for VMAT planning of hypopharyngeal cancer is evaluated. • Influence of MU tool and intermediate dose feature on PRO3 is studied. • Dose rate and MLC aperture area changes are quantified and related to resultant MU. • Plan merit is established to assist in choosing...

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Veröffentlicht in:	Physica medica 2017-03, Vol.35, p.73-80
Hauptverfasser:	Ahamed, Shabbir, Singh, Navin, Gudipudi, Deleep, Mulinti, Suneetha, Talluri, Anil, Soubhagya, Bhudevi, Sresty, Madhusudhana
Format:	Artikel
Sprache:	eng
Schlagworte:	Carcinoma - diagnostic imaging Carcinoma - radiotherapy Humans Hypopharynx - diagnostic imaging Imaging, Three-Dimensional MU objective tool Pharyngeal Neoplasms - diagnostic imaging Pharyngeal Neoplasms - radiotherapy Progressive resolution optimizer Radiology Radiotherapy Dosage Radiotherapy Planning, Computer-Assisted - methods Radiotherapy, Intensity-Modulated - methods RapidArc Retrospective Studies Volumetric modulated arc therapy
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Zusammenfassung:	Highlights • MU limiting strategy for VMAT planning of hypopharyngeal cancer is evaluated. • Influence of MU tool and intermediate dose feature on PRO3 is studied. • Dose rate and MLC aperture area changes are quantified and related to resultant MU. • Plan merit is established to assist in choosing the best possible planning strategy.
ISSN:	1120-1797 1724-191X
DOI:	10.1016/j.ejmp.2017.01.016