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IMRT Head and Neck Phantom

IMRT Head and Neck Phantom
Item Number :
682-520

CIRS IMRT Head and Neck Phantom

Details

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CIRS IMRT Head and Neck Phantom.

The IMRT Head and Neck Phantom is circular in shape and approximates the size of an average patient.  Tissue equivalent interchangeable rod inserts for ionization chambers allow for point dose measurements in multiple planes in the phantom, film calibration and isodose normalization.  The phantom also supports film dosimetry with not only standard radiographic films but also GafChromic® media.  Other optional inserts are available to support a variety of other detectors including TLD’s, MOSFET, and diodes.

•  Verify heterogeneity corrections.

•  Correlate CTU to electron density.

•  Check dose distributions in sensitive areas.

•  Check depth doses and absolute dose.

•  2D and 3D isodoses.

•  Calibrate film with an ion chamber.

•  Verify individual patient treatment plans.

The IMRT Head and Neck Phantom accommodates one Ready Pack™ 10” x 12” film in transverse orientation, two radiochromic or radiographic 10 x 10 cm films in transverse orientation and a stack of thirteen radiochromic films precut to 63.5 x 63.5 mm in three different orientations.

The IMRT Head and Neck Phantom has an optional four  Electron Density reference plugs which can be interchanged in five separate locations within the phantom.  The surface of the phantom is etched with grooves to ensure proper orientation of the CT slices and accurate film to plan registration.  An optional cranial bone ring is also available.

Item 682-520 Includes the following items:
(1) Water equivalent homogeneous section drilled to accommodate rod inserts (15 cm).
(2) Film slabs, 1 cm, film cavity 10 x 10 cm with a set of CT to Film Fiducial Markers.
(1) CT to film fiducial markers in film slabs.
(1) Cavity slab, 6.34 cm, to accommodate Film Stack or Gel Cassette.
(1) Film Stack for small volume 3D image reconstruction.
(2) Spacer slabs, 1 cm.
(1) Spacer slab, 2 cm.
(2) End slabs  - 1 cm  and 1.6 cm.
(1) Water equivalent rod insert with ion chamber cavity.
(1) Bone equivalent rod insert with ion chamber cavity.
(5) Water equivalent solid rod inserts.
(1) Bone equivalent solid rod insert.
(1) Alignment base.
(1) Holding device.

Specifications
Overall Size:  17" x 13" x 8" (43.2 cm x 33 cm x 20.3 cm)
Weight:
28 lbs. (10.5 kg)

Materials:
Phantom Body:
Tissue Equivalent Epoxy Materials
Inserts:
CIRS Tissue Equivalent Materials (epoxy resin based)

Insert Options:
Customers are encouraged to complete their order with the purchase of at least one (1) each insert option listed below.  Customer must specify ion chamber and / or cavity code*.
682-533 Water Equivalent Rod Insert with Ion Chamber Cavity
682-534 Bone Equivalent Rod Insert with Ion Chamber Cavity

References:

Gershkevitsh, Eduard, et al., Dosimetric Verification of Radiotherapy Treatment Planning Systems: Results of IAEA Pilot Study. 2008 Elsevier Ireland Ltd., Radiotherapy and Oncology 89 (2009) 338-346, pgs. 338-346, March 2009.

Zhao, Y. et al., Monte Carlo evaluation of a treatment planning system for helical tomotherapy in an anthropomorphic hetergeneous phantom and for clinical treatment plans.  Med. Phys., vol. 35 (12), pgs. 5366-5374, December 2008.

Luo, W., et al., Analysis of image quality for real-time target tracking using simultaneous kV-MV imaging. Med. Phys., vol. 35 (12), pgs. 5501-5509, December 2008.

Brunckhorst E., et al., Commissioning of Radiotherapy Treatment Planning Systems: Testing for Typical External Beam Treatment Techniques. IAEA, International Atomic Energy Agency, IAEA-TECDOC-1583, pgs. 1-67, January 2008.

Altman, M., et al., A Novel Phantom for use in 3-dimensional In Vitro Cell Experiments. Med. Phys., vol. 33 (6), pgs. 2058-2059, Poster # SU-FF-T-40, June 2006.

*See Documents tab for ion chamber cavity code chart.


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