CIRS 603A頭部模體由可用X射線，計算機斷層掃描和磁共振成像技術成像的材料制成。它能很好地描述迄今為止所有測試的MRI序列，包括T1加權，T2加權，3D飛行時間，MPRAGE和CISS序列。
CIRS 603A頭部模體的頭骨是由塑料基組織替代品制造的，而間質和周圍的軟組織是由專有的水基聚合物制成的。整個模型裝在一個清晰的真空成型塑料外殼中，以防止凝膠干燥。
CIRS 603A頭部模體的顱骨體的整個顱骨部分填充有間距為1.5cm的3mm直徑桿的正交三維網格。五個擴展的軸桿在網格的參考原點相交。每個擴展軸的末端都配有CT和MR標記，可以準確對準激光以及圖像配準。
CIRS 603A頭部模體包括一個6.35毫米直徑的丙烯酸棒，每個耳道有一個3毫米直徑和17毫米長的空氣空隙。
CIRS 603A頭部模體特點和好處
T1，T2和3D TOF MRI采集的圖像良好
CT掃描的圖像很好
與立體定向框架一起使用的保護墊
圖像可以導入立體定位程序
CT掃描可以用來評估MRI的準確性
包括的材料
3D擬人頭骨幽靈
ABS真空成型搖籃
5立體框架墊
定制攜帶案例
用戶指南
保修信息
4年保修
CIRS 603A was designed for assessment of MR image distortion in Stereotactic Radiosurgery Planning. It is also a useful tool for verifying image fusion and deformable image registration algorithms used in various treatment planning systems. The tissue equivalent, anthropomorphic design provides the closest conditions to a clinical imaging scenario. The phantom can be imaged using X-ray, Computed Tomography and Magnetic Resonance. It images well with all MRI sequences tested to date, including T1 weighted, T2 weighted, 3D Time of Flight, MPRAGE and CISS.
The skull is manufactured from a plastic-based bone substitute, and the interstitial and surrounding soft tissues are made from a proprietary signal generating water-based polymer. The entire phantom is encased in a clear plastic shell to protect gel from desiccation. The phantom is supplied with specially designed pads that allow fixation with any stereotactic frame or mounting for end-to-end testing. The phantom is also suitable for frameless SRS QA.
The entire inter-cranial portion of the skull volume is filled with an orthogonal 3D grid of 3mm diameter rods spaced 15 mm apart. Five extended axis-rods intersect at the reference origin of the grid. The end of each extended axis is fitted with CT/MR markers allowing for accurate positioning with lasers and co-registration of CT and MR image sets.
The phantom includes right and left air voids, 3 mm in diameter by 17 mm long to simulate each ear canal for evaluation of potential distortions commonly found in clinical settings.
To accommodate image fusion techniques, CIRS can offer value added services such as phantom specific CMM, reference CT or MRI data sets, attachment of customer specific registration devices and inclusion of special point markers.
Features:
Images well on T1, T2 and 3D TOF MRI acquisitions
Images well on CT scans
Protective pad for use with Stereotactic Frame
Images can be imported into stereotactic localization program
CT scans can be used to assess MRI accuracy
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