Optimal VMAT Delivery for Elekta MLC Beam Modulator: A Study of Collimator Rotation for Head and Neck Planning

Well-optimized treatment planning parameters are vital for optimum beam delivery in advanced radiotherapy techniques. The Elekta “Beam-Modulator” (BM) is a high-resolution multileaf collimation system where each individual leaf is 4 mm wide at the isocentre, without backup diaphragms and jaws. Its maximum aperture is 21 × 16 cm2, which results in a limited clinical use for the target geometry of maximum 20 cm in lengt h. The collimator rotation provides an opportunity to treat slightly extended treatment length with optimal target coverage.
Source: Journal of Medical Imaging and Radiation Sciences - Category: Radiology Authors: Tags: Research Article Source Type: research
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