CIRS 610 AAPM CT性能模體,CIRS 610模體詳細介紹:
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(shù)的單一測試對象。模體設(shè)計基于美國醫(yī)學物理學家協(xié)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??涨豢梢蕴畛涓鞣N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(jié)構(gòu)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(shù)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