type-s imrt reinforced style 20 mask  (CIVCO Medical Instruments Co Inc)

Journal: Journal of Radiosurgery and SBRT

Article Title: Intrafractional positioning accuracy during stereotactic brain radiotherapy with a modified thermoplastic mask system, on-board cone-beam CT, and a six-degrees-of-freedom couch

doi:

Figure Lengend Snippet: (a) The modified thermoplastic mask system with an accompanying vacuum cushion, and (b) an enlarged photograph of the modified mask, where a portion of the thermoplastic shell (in the red circle) is pushed into a patient mouth (see arrow) so that the patient can byte it with lips and teeth.

Article Snippet: In this letter, a more practical mask system without employing a mouthpiece is proposed by modifying a commercial thermoplastic mask, Type-S IMRT Reinforced Style 20 Mask (CIVCO, Iowa, USA) with a thickness of 3.5 mm, in such a way that a portion of the thermoplastic shell is pushed into a patient mouth by 2 cm using a ruler so that the patient can byte it with lips and teeth. shows the modified mask system with an accompanying vacuum cushion, and figure 1(b) indicates an enlarged photograph of the modified mask described above. fig ft0 fig mode=article f1 fig/graphic|fig/alternatives/graphic mode="anchored" m1 Open in a separate window Figure 1 caption a7 (a) The modified thermoplastic mask system with an accompanying vacuum cushion, and (b) an enlarged photograph of the modified mask, where a portion of the thermoplastic shell (in the red circle) is pushed into a patient mouth (see arrow) so that the patient can byte it with lips and teeth. shows intrafractional positioning accuracy for consecutive 13 brain tumor patients who underwent four-fraction stereotactic radiotherapy.

Techniques: Modification