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                                美國CIRS 731-HN頭部模體主要用于頭部放療測試。
美國CIRS 731-HN頭部模體產(chǎn)品簡介:
The CIRS Proton Therapy Dosimetry Head is an anthropomorphic head phantom 
designed for commissioning and treatment planning system (TPS) verification with 
any conformal or IMRT Proton Therapy system1.
The phantom is constructed of CIRS tissue-equivalent materials, which mimic 
reference tissues within 1.5% for protons and within 1% for photons from 50 KeV 
to 15 MeV. The Proton Therapy Head can be used during all standard IMRT 
procedures from CT image acquisition to proton beam delivery 
verification1,3.
Tissue equivalency of detailed internal structures makes the phantom ideal 
for treatment plan evaluation in high density-gradient locations, which are 
specifically important in proton therapy2, such as air cavity vs. bone 
structures. Internal structures include brain, bone with cortical and trabecular 
distinction, larynx, trachea, fully-open sinus cavities, nasal and mouth 
cavities, and teeth with distinct dentine, enamel and root structure.
Model 731-HN approximates the average male human head in both size and 
structure to allow for intuitive set up with any patient positioning or fixation 
device.
One half of the phantom is sectioned in 2cm increments for three film 
locations in the cranio-caudal direction starting from the approximate center of 
the sagittal plane. Because slices are orthogonal to the CT axial plane, 
artifacts caused by residual air gaps are noticeably reduced compared to 
standard axial slices.
Proton system commissioning is enhanced by placement of a tungsten BB in a 
molar and a titanium prosthesis attached by two screws at C3 and C5 
vertebra.
美國CIRS 731-HN頭部模體產(chǎn)品特點(diǎn):
Detailed internal anatomy including bone and air
Three film locations in sagittal direction
Tissue Equivalent for protons and photons
Dental filling and spine prothesis