CBCT Electron Density Phantom CIRS 062MA Cone Beam CT

— 提升自适应放疗的CT值(亨斯菲尔德单位) 准确率–
Increase HU value Confidence for Adaptive RT

产品功能&特点：
Features:

• 快速评估距离配准
  Quick assessment of distance registration
• 适用于于多层螺旋CT及锥束CT
  Can be used for multi-slice CT and Cone Beam CT
• Can be configured for central axis and off-set measurements
  可设置为中心轴及偏心测量模式
• Manufactured from durable epoxy
  模体由耐用环氧树脂制成
• Tissue equivalent inserts can be positioned at 17 different locations
  组织等效插件可设置在17个不同位置
• Special marker inserts enable quick assessment of distance registration
  特制标记插件可确保快速评估距离配准
• All materials accurately simulate indicated tissue within CT and Cone beam CT energy range
  所有模体材料均可精确模拟CT和锥束CT能量范围内的标志性组织

CIRS 062MA型锥束CT电子密度模体是CIRS 062M型电子密度模体的升级版本，专门应用于kV及MV级CBCT成像系统。早期数据显示，诊断CT和锥束CT的亨斯菲尔德单位(HU)度数可能存在差异。对于锥束CT几何形状的确认需要额外的支持材料、并建议采用偏离中心轴的测量方法。
The Cone Beam (CBCT) Electron Density Phantom is an extended version of the CIRS Model 062M Electron Density Phantom and specifically designed for Cone Beam CT Imaging systems. Preliminary data shows that there may be differences between the HU readings for Diagnostic CT and Cone Beam CT. The geometry of the Cone Beam CT requires additional material and suggests that off central axis measurements should be taken.

该模体由美国CIRS公司与Peter H. Cossmann博士联合开发，是体积成像中CT值与电子密度校准的可靠工具。可靠的CT电子密度校准曲线有助于直接通过CT值开展放疗计划。该模体亦可搭配各种类型的电离室，从而实现剂量测量，并可基于校正后的CT校准曲线进行异质性校正的验证。The phantom was designed in collaboration with Dr. Peter H. Cossmann, PhD to provide a reliable tool for CT number to electron density calibration in volumetric imaging. Reliable CT calibration curves help enable treatment plan adaptation directly from Cone Beam CT data. Additionally, the phantom can accommodate any ion chamber for dose measurements and validation of heterogeneity correction based on the corrected CT calibration curve.

062MA型锥束CT电子密度模体面积上可覆盖尺寸为40 cm x 40 cm范围内成像系统。它由塑料水等效环氧树脂制成，与标准的062M型电子密度模体具有相同的组织等效电子密度插件。此外，该模体具有可互换的插板，可在步进2.5cm状态下，对离轴的电子密度部分进行重新定位。
The Model 062MA CBCT Electron Density Phantom’s size covers geometries for imagers with dimensions of up to 40 cm x 40 cm. It is made of Plastic Water^® and contains the same set of tissue equivalent electron density inserts as the standard Model 062. Additional interchangeable slabs allow for repositioning of the electron density section with an increment of 2.5 cm.

注：062MA型只是完整的锥束CT电子密度&图像质量模体系统三种配置之一。
The 062MA is just one of three configurations available as a part of the Cone Beam CT Electron Density & Image Quality Phantom System.