CIRS 610 AAPM CT性能模體，CIRS 610模體
CIRS 610 AAPM CT性能模體，CIRS 610模體為用戶提供了一個測量十個不同CT性能參數的單一測試對象。模體設計基于美國醫學物理學家協會CT掃描儀Phantoms的報告＃1中提出的指南。報告＃1的目標是“（1）定義CT掃描儀的”性能“，（2）描述通過使用特定的模體進行性能測試的方法。
CT號線性插入物，高對比分辨率插入物和切片寬度插入物被容納在8.5“直徑的PMMA水箱中，其具有快速斷開閥，以便于在使用之間填充和排出。
對比測試物體粘附在包括兩排直徑為1至0.125“的腔體的罐底部。空腔可以填充各種解決方案進行對比評估。一個鋁排列的插入物被納入坦克的蓋子，并且可以互換與一個聚苯乙烯TLD插入物為劑量測量。
CIRS 610 AAPM CT性能模體，CIRS 610模體測量能力
噪聲
大小獨立
靈敏度/可檢測性
輻射劑量
機械對齊
空間均勻性
光束硬化
HU線性
切片厚度
空間分辨率和線傳播功能
CIRS 610 AAPM CT性能模體，CIRS 610模體包括的材料
具有骨骼結構的組織等效軀干腔
可移動的肺，心臟，肝臟，胰腺，脾臟和腎臟
管道，耦合器，真空泵和硬件
泡沫襯里的手提箱
技術手冊
CIRS 610 AAPM CT性能模體，CIRS 610模體保修信息
4年保修
CIRS 610 AAPM CT性能模體，CIRS 610模體英文介紹：
The CIRS Model 610 AAPM CT Performance Phantom offers the user a single test object that measures ten distinct CT performance parameters. The phantom design is based on the guidelines presented in Report #1 of the American Association of Physicists in Medicine Task Force on CT Scanner Phantoms. The goals of report #1 were to “(1) define ‘performance’ of a CT scanner and (2) describe methods of performance testing through utilization of particular phantoms.”
A CT number linearity insert, high contrast resolution insert and slice width insert are housed in an 8.5 “ diameter PMMA water tank with quick disconnect valves for ease of filling and draining between use. Also included is a 0.25” bone equivalent ring that can be fit over the inserts to evaluate the effects of beam hardening.
A contrast test object is adhered to the bottom of the tank that includes two rows of cavities from 1 to 0.125” diameter. The cavities can be filled with various solutions for contrast evaluation. An aluminum alignment insert is incorporated in the lid of the tank and can be interchanged with a polystyrene TLD insert for dose measurements. A user’s manual, holding cradle, filling tubes and other accessories are included.
Noise
Size Independence
Sensitivity / Detectability
Radiation Dose
Mechanical Alignment
Spatial Uniformity
Beam Hardening
HU Linearity
Slice Thickness
Spatial Resolution and line spread function
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