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1、 HHOLOGIC数字乳腺机配置及参数 Standard Configuration 标准配置Item条目Description描述HOLOGIC FFDMConsists of:Acquisition GantryConstant Potential High Frequency Generatorn Type: Constant Potential High Frequency Generator n kV Range: 20 kV to 39 kV in 1 kV incrementsn mAs Range: 3.0 mAs to 400 mAsHOLOGIC 数字乳腺机 配置包括:主
2、机 系 统高频高压发生器n 类型：高频恒定，逆变式n kV 范围：20kV - 39kV，1kV 递增n mAs 范围：3.0 mAs-400 mAsX-Ray Tube: Custom designed with high speed anode rotation, this tube provides significantly higher mA loading and output. This high performance tube helps to produce exceptionally high quality, high resolution images for bot
3、h full field and magnification views.n Anode Type: Molybdenum, rotatingn Anode Design: Bi-angularn Anode Speed: High Speed n Focal Spot Size: 0.1 mm (Small), 0.3 mm (Large)n Filtration Material: Molybdenum, RhodiumX-线球管：专为乳腺成像设计的高速旋转阳极。专业、独特的球管设计具有更高的负载和输出能力。可以在各种临床应用中保证得到最优质的影像。n 阳极类型-旋转钼靶n 设计：双靶角（
4、22/16）n 阳极转速：高速，9600RPMn 阳极热容量：300KHUn 焦点大小：0.1mm（小焦点），0.3mm（大焦点）n 滤过材料：钼，铑C-arm Assembly:n Vertical Travel. Motorized n +195to 150C-arm Rotationn Dual Function Footswitches (2)n Recessed face shield for patient comfortn Digital Display of C-armn Rotationn Easily accessible emergency OFF switch for
5、added safety and operator controln Dual Compression Mechanismn Digital display of AEC position, compression force and thickness on each side of compression device for easy referenceC-臂系统：n C-臂垂直运动：电动n 等中心旋转，角度+195- 150n 垂直移动距离 67-140cmn SID66CMn 双功能脚踏板（2付）n 可移动病人防护面罩n C-臂旋转角度的数字显示n 紧急关机按钮，保证操作更安全n 双
6、重压迫机制n C-臂压迫系统两侧均有AEC位置、压力、厚度的数字显示 Standard Configuration（continued） 标准配置（续）Item条目Description描述Automatic Exposure Modes: The system provides selectable exposure modes from fully automated to totally operator selected techniques. This ensures optimum image quality and consistent performance for all i
7、maging requirements.n Auto-Filter Mode - system determines filter, kV, and mAs;n Auto-kV Mode - system determines kV and mAs; operator selects filtern Auto-Time Mode - system determines mAs; operator selects filter, kVn TEC - Operator selects breast densityn Manual - all technique factors selected b
8、y operator自动曝光模式：系统提供四种曝光模式，从全自动至全手动设置曝光条件，确保最佳的影像质量，同时对于各种成像要求都保证了影像的稳定性。n 自动滤过模式：系统自动选定kV、滤过和mAs。n 自动kV模式：系统选定kV和mAs，操作者选定滤过。n 自动时间模式：系统自动选定mAs，操作者选择滤过、kV。n TEC：操作者选择乳房密度n 手动模式：手动设置所有曝光技术参数。Automatic Exposure Control: Choose between an Auto AEC function that allows the entire field of view to dete
9、rmine the densest area of the breast or a manual seven-position AEC virtual sensor.n 7 positionn Entire field of view自动曝光控制：采用整板探测器最为自动曝光控制探测单元，可以更为精确的决定曝光参数。同时具有7个手动可选AEC位置。 n 7 个手动可选AEC位置n 采用整板作为探测单元Compression Paddles (Smart Paddle System): The Smart paddle system controls the movement of the Aut
10、omatic Exposure Control (AEC) position and automatic collimator function. The integrated FAST paddle technology accommodates the natural contour of the breast, tiltingfor more uniform compression and exposure, and improved patient comfort.n 24 x 30 cm FAST Paddle, n 18 x 24 cm FAST Paddle, n 7.5 cm
11、Spot Contact Paddle, 压迫板(只能压迫系统)：智能压迫系统控制AEC的位置和自动准直功能。FAST全自动子适应性压迫板可以根据乳房的外型轮廓，进行一定角度的倾斜，可以实现更均匀的压迫，同时使得整个检查过程更加舒适。n 24 x 30 cm FAST 压迫板n 18 x 24 cm FAST压迫板n 7.5 cm点压迫板 Standard Configuration（continued） 标准配置（续）Item条目Description描述Magnification Package:n Magnification Platformn 7.5 cm Spot Magnifica
12、tion Paddle放大系统n 放大摄影平台, n 7.5 cm 局部放大压迫板Digital Image Receptor: Uses a direct conversion detector, which eliminates the need to convert x-rays to light. The result is an exceptionally sharp digital image and better contrast with greater consistency. The 24 x 29 cm field of view allows you to image
13、a wider range of patients without requiring additional exposures.n Amorphous Selenium TFT Detector,n LORAD Anti-scatter Grid, n Grid AutoRetractor Mechanism for Geometric Magnification Views, n 24 x 29 cm Effective Imaging Arean 3328 x 4096 Image Matrix Sizesn 70 m Pixel Sizen 7 lp/mm Limiting Spati
14、al Resolutionn MTF Nyquist Frequency 0.40n DQE at 0 cycles/mm 50% 数字化探测器：采用直接转化探测器，避免了将X光转换成可见光的过程，减少了能量丢失。从而能够得到更加锐利和清晰的影像。24 x 29 cm的影像板可以满足各种情况的临床应用。n 非晶硒TFT探测器 n 滤线栅n 滤线栅自动撤回机制n 24 x 29 cm 影像板n 影像矩阵3328 x 4096n 像素大小70 mn 极限空间分辨率7.14 lp/mm n MTF Nyquist Frequency 0.40n DQE 0 cycles/mm 60% Standard Configuration（continued） 标准配置（续）Item
