062MQA型锥束CT电子密度&成像质量模体可对集成与放射治疗设备上的锥束CT系统进行电子密度校准及图像质量评估。模体的电子校准功能实现了对自适应辐射治疗结果的增强,而其在图像质量控制上的特点解决了优化图像质量和最小化辐射剂量之间的细微平衡。
The Model 062MQA phantom provides a comprehensive tool that can be used for both electron density calibration and image quality assessment of Cone Beam CT systems integrated in radiation therapy devices. The electron calibration function of the phantom enhances the outcome of the adaptive radiation therapy while the image quality features address the fine balance between optimizing image quality while minimizing radiation dose.
062MQA型锥束CT电子密度&成像质量模体包含以下几个单元:一副100mm厚躯干插板;一副100mm厚锥束CT成像质量模体;一副50mm厚电子密度模体;Bolus(组织替代材料制成的组织波长模体)含一副37.5mm厚的均一材质插板;一副12.5mm厚均一材质插板;一副50mm厚均一材质插板。
The 062MQA CBCT Electron Density & Image Quality Phantom consists of several sections: a 100mm thick body slab, a 100 mm thick CBCT Image Quality phantom, a 50mm thick Electron Density Phantom, and a Bolus consisting of a 37.5mm thick uniform slab, a 12.5mm thick uniform slab and a 50mm thick uniform slab.
100 mm厚的主体(躯干)部分设有一个中心孔,用于与CBCT图像质量模体相连。每个小孔插板均具有钻孔,以容纳电离室插件,从而实现在图像质量插件处于任意位置时,都可以对电离室进行测量。截面具有不同厚度,使用者可以方便的在射线束中心轴位置对具有图像质量检测特性的任意层进行定位。此外,厚度不同这一特点也减少了因电子密度部分偏离中心轴而产生的误差。
The 100 mm thick body section has a central hole that receives the CBCT Image Quality Phantom. Each Bolus slab is drilled to accommodate an ion chamber insert and allow for ion chamber measurements regardless of the position of the Image Quality Insert. The thicknesses of the sections were selected to allow for positioning of any of the layers containing the Image Quality features in the central axis of the beam. Also sections of different thickness decrease the increment with which the electron density section can be offset from the central axis.
该模体标配支撑架及激光准直标记单元,以便使用者在短时间内轻松将其固定在加速器治疗床上。模体本身则被置于具有凹槽的支撑轨道上。缓冲板能够降低支撑装置所带来的伪影,并可帮助使用者接触到支撑板上面的把手。通过调整水平仪,可使模体处于水平位置。
The phantom support along with laser alignment marks allow for easy and quick positioning of the phantom on the accelerator couch. The phantom is placed on the support rails with the help of machined grooves. Buffer plates are provided to decrease the artifacts from the support device and to allow the user to access the handles on the support plates. The leveling of the support and implicitly the phantom is done by adjusting leveling feet.
产品功能&特点:
Features:
- 按美国医学物理学家协会(AAPM)1号报告的描述开展所有的图像质量保障检测
Perform all CT Image QA tests for AAPM TG Report #1
- 使用电离室进行剂量测量
Use ionization chambers for dose measurements
- 使用电离室开展剂量测量
Perform dose measurements using Ionization chambers
- 对多层CT及锥束CT进行电子密度校准
Calibrate Electron Density in multi-slice CT and Cone Beam CT
- 开展中心轴及偏离误差测量
Perform central axis and off-set measurements
- 在CT及锥束CT能量范围内的17个不同区域放置组织等效模拟物质
Position simulated tissue materials in CT & CBCT energy range at 17 different locations
- 体积成像优化
Optimized for volumetric imaging
- 快速定位及自定义填充配置
Quick positioning and customized loading confgurations
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.
配置及参数
Specifications |
整体尺寸:
OVERALL DIMENSIONS: |
330mm x 270mm x 50mm (宽 x 高 x 深)
330 mm x 270 mm x 50 mm (W x H x D) |
重量:
WEIGHT: |
18kg (40 磅)
18 kg (40 lb) |
材质:
MATERIALS: |
水及组织等效环氧树脂
Water and Tissue Equivalent Epoxy Resins |
062MA型锥束CT电子密度模体含以下部件:
Model 062MA Includes
|
数量
QTY |
部件编号
PART NUMBER |
描述
DESCRIPTION |
物理密度 (单位:g/cc)
PHYSICAL DENSITY, g/cc |
电子密度,
(单位:x 1023 电子/cc)
ELECTRON DENSITY, X1023electrons/cc |
相对电子密度 (相对于水)
RED (RELATIVE TO H2O) |
1 |
062MA-01 |
电子密度头部插件Electron Density Head Insert |
1.029 |
3.333 |
0.998 |
1 |
062MA-02 |
电子密度躯干(去除头部)插件
Electron Density Body without Head Insert |
1.029 |
3.333 |
0.998 |
2 |
062A-04 |
肺部(吸气)等效电子密度插件
Lung (Inhale) Equivalent Electron Density Plug |
0.20 |
0.634 |
0.190 |
2 |
062A-05 |
肺部(呼气)等效电子密度插件
Lung (Exhale) Equivalent Electron Density Plug |
0.50 |
1.632 |
0.489 |
2 |
062A-06 |
乳腺(50%腺体/50%脂肪)等效电子密度插件
Breast (50% Gland / 50% Adipose) Equivalent Electron Density Plug |
0.99 |
3.261 |
0.976 |
2 |
062A-08 |
致密骨小梁(200 mg/cc)等效电子密度插件
Solid Trabecular Bone (200 mg/cc HA) Equivalent Electron Density Plug |
1.16 |
3.730 |
1.117 |
2 |
062A-09 |
肝脏等效电子密度插件
Liver Equivalent Electron Density Plug |
1.07 |
3.516 |
1.052 |
2 |
062A-10 |
肌肉等效电子密度插件
Muscle Equivalent Electron Density Plug |
1.06 |
3.483 |
1.043 |
2 |
062A-11 |
脂肪等效电子密度插件
Adipose Equivalent Electron Density Plug |
0.96 |
3.171 |
0.949 |
2 |
062A-15 |
致密骨(800 mg/cc)等效电子密度插件
Solid Dense Bone (800 mg/cc HA) Equivalent Electron Density Plug |
1.53 |
4.862 |
1.456 |
1 |
062A-27 |
致密骨(1250 mg/cc)等效电子密度插件
Solid Dense Bone (1250 mg/cc HA) Equivalent Electron Density Plug |
1.82 |
5.663 |
1.695 |
1 |
062MA-39 |
充水电子密度插件, 直径1英寸(2.54cm), 内含可拆卸式小瓶 (提供真实水数据)
Water-fillable Electronic Density Plug (Real water data provided) |
1.00 |
3.340 |
1.000 |
1 |
062M-30 |
双脚式模体支架(062M型专用)
Set of 2 Feet for Model 062M |
1 |
062M-40 |
软式手提包装箱(062M型专用)
Soft Carry Case for Model 062M |
1 |
062MA-24 |
50 mm厚小孔插板
50 mm Thick Bolus Slab |
1.029 |
3.333 |
0.998 |
2 |
062MA-32 |
100 mm 长 x 直径 30 mm 本底等效插件
100 mm L x Ø 30 mm Background Equivalent Plug |
1.029 |
3.333 |
0.998 |
1 |
062MA-33 |
12.5 mm厚小孔插板
12.5 mm Thick Bolus Slab |
1.029 |
3.333 |
0.998 |
1 |
062MA-34 |
37.5 mm厚小孔插板
37.5 mm Thick Bolus Slab |
1.029 |
3.333 |
0.998 |
1 |
062MA-36 |
锥束CT电子密度模体 – 环形(100 mm厚)
CBCT Electron Density Phantom – Annulus (100 mm Thick) |
1.029 |
3.32 |
0.998 |
1 |
062MA-37 |
锥束CT电子密度模体 – 环形致密插件(100 mm厚)
CBCT Electron Density – Annulus Solid insert (100 mm Thick) |
1.029 |
3.333 |
0.998 |
1 |
062MA-30 |
模体支架套装(062M型&06MA型专用)
Holder/Support set for Model 062MA & 062MQA |
1 |
062MA-40 |
软式手提包装箱(062M型专用)
Soft Carry Case for Model 062MA |
1 |
|
使用手册
User Guide |
– |
|
48个月质保期
48 Month Warranty |
|