Saxsons Group — India's trusted nuclear medicine, radiotherapy, oncosurgery, dosimetry and cyclotron supplier since 1986

Thermoplastic Immobilization Mask Family — what the literature says.

Five real anchor citations across the primary workflows the thermoplastic mask family is bought for — daily H&N 6D setup, CBCT-verified positioning across immobilisation classes, the AAPM TG-176 dosimetric framework, SRS intrafractional 6D motion under mask fixation, and hybrid MR-linac immobilisation. Covers SKUs RT-001 (S-Frame H&N), RT-002 (full-face cranial / SRS) and RT-003 (body shell).

≤ 2.24 mm6D translational setup error under H&N TP mask (You 2024)
99.4 %CBCT alignment within 2 mm — best-in-class TP-mask system (Mail 2024)
0.53 mmintrafractional drift plateau at 10 min under SRS mask (Mangesius 2019)
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Product page — Thermoplastic Immobilization Mask Family

Thermoplastic Immobilization Mask Family specifications, brochure and quote request

Technical specifications, application notes, AERB compliance documentation and direct quote request for Thermoplastic Immobilization Mask Family. Ships from Saxsons Group — 1,000+ Indian hospitals for 40 years.

Review the Thermoplastic Immobilization Mask Family specifications
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H&N 6D setup accuracy under TP mask — You 2024
0.32 mm
X-axis mean (SD ± 1.22)
−1.09 mm
Y-axis mean (SD ± 1.63)
2.24 mm
Z-axis mean (SD ± 1.72)
Rotational errors below 0.4° on every axis (Yaw −0.12° · Pitch 0.22° · Roll 0.35°). Contact-force distribution across the mask (forehead 3.97 N · cheekbones ~4.5 N · chin 8.8 N) quantifies the 3D stress-test framework for pre-treatment mask acceptance.
Daily H&N setup2024
≤ 2.24 mmMean 6D translational setup error under thermoplastic H&N mask across 30 patients / 40 masks / 920 daily MVCT images — well inside the CTV-to-PTV 3-5 mm margin used in standard H&N IMRT

Quantifying thermoplastic mask quality for precision radiotherapy in head and neck cancer — a 3D stress test and 6D-axis error analysis

Medicine (Baltimore) 103(44):e40365 — You, Chen, Chu, Yau, Liu, Lai, Chen, Chen, Tsai, Hsieh

Setup accuracy within 2 mm — 3-arm comparison
90 / 90 / 92.7 %
Conventional (n = 39, 125 CBCTs)
baseline TP mask, standard headrest
vs
99.4 / 100 / 98.7 %
Custom + mouth-bite (n = 19, 158 CBCTs)
sub-2 mm alignment across AP / SI / RL
CBCT comparison2024
99.4 % / 100 % / 98.7 %Alignment within 2 mm on AP / SI / RL axes for the best-in-class custom-headrest + mouth-bite thermoplastic-mask system — measured on 158 CBCT scans across 19 patients

Evaluation of positioning accuracy in head-and-neck cancer treatment — a cone-beam CT assessment of three immobilization devices with VMAT

Journal of Biological Methods 11(3):e99010025 — Mail, Alshamrani, Lodhi, Khawandanh, Saleem, Khan, Alghamdi, Nadershah, Althaqafy, Subahi, Alghamdi

AAPM TG-176 — scope for immobilization devices
↓
target-dose loss from device attenuation
↑
skin-dose increase from build-up loss
TPS
device inclusion in the dose calculation
Peer-reviewed framework endorsed by AAPM for indexing devices between the beam and the patient. The reference the mask family's attenuation performance is measured against for planning-system commissioning.
Dosimetric framework2014
TG-176The AAPM Task Group report that establishes the modern framework for accounting for the dosimetric impact of immobilisation devices — attenuation, skin-dose build-up loss and shifted dose distribution — inside the treatment-planning system

Dosimetric effects caused by couch tops and immobilization devices — Report of AAPM Task Group 176

Medical Physics 41(6):061501 — Olch, Gerig, Li, Mihaylov, Morgan (AAPM Radiation Therapy Committee)

SRS intrafractional drift under TP mask — Mangesius 2019
0.21 mm ± 0.26
0 - 2 min under mask
setup-verification window
vs
0.53 mm ± 0.31
≥ 10 min under mask
plateau — motion levels off at 8-10 min
SRS intrafraction2019
0.21 → 0.53 mmMean 3D head displacement grows from 0.21 mm (0-2 min under mask) to 0.53 mm (10 min) — 453 ExacTrac measurements across 96 SRS fractions. Bounds the intra-fraction margin decision and the SRS beam-on ceiling per fraction

Intrafractional 6D head movement increases with time of mask fixation during stereotactic intracranial RT-sessions

Radiation Oncology 14:231 — Mangesius, Seppi, Weigel, Arnold, Vasiljevic, Goebel, Lukas, Ganswindt, Nevinny-Stickel

MR-linac TP-mask workflow — Cuccia 2021 review
H&N
gold-standard immobilisation modality
MRI-safe
no ferromagnetic hardware
< 1 mm
systematic translational error
Establishes MRI-compatible thermoplastic-mask + head-STEP-style indexed positioning as the standard-of-care immobilisation approach for brain and head-and-neck patients on 0.35 T + 1.5 T MR-linac systems.
MR-linac hybrid2021
Gold standardEuropean multi-centre review that anchors thermoplastic masks as the gold standard for brain and H&N immobilisation on MR-linac systems — mask + MR receive-coil + hearing protection coexisting inside the bore is the workflow the family plugs into

Patient positioning and immobilization procedures for hybrid MR-Linac systems

Radiation Oncology 16:183 — Cuccia, Alongi, Belka, Boldrini, Hörner-Rieber, McNair, Rigo, Schoenmakers, Niyazi, Slagter, Votta, Corradini

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Thermoplastic Mask Family

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Literature Radar · auto-updated daily

Latest thermoplastic-mask research

Fresh peer-reviewed papers on thermoplastic-mask immobilisation for radiotherapy — setup reproducibility, intrafractional motion, SRS + MR-linac workflows, mask-quality metrics. Auto-updated from Europe PMC.

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