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1

医用磁共振成像设备

1台

一、设备名称： 医用磁共振成像设备1台。 二、技术参数： *1、场强种类: 1.5T磁体超导 1.1 屏蔽方式: 主动屏蔽 1.2 抗外界移动物体干扰: 具备抗干扰屏蔽 1.3 匀场方式:被动匀场+主动匀场 1.4 匀场时间≤5s 1.5 五高斯线范围(m)(X,Y)×(Z) ≤3.8×2.4m 1.6 磁场稳定度≤0.1ppm/h 1.7 磁场均匀度(VRMS) 1.7.1 50cmDSV≤0.5ppm 1.7.2 40cmDSV≤0.20ppm 1.7.3 30cmDSV≤0.07ppm 1.7.3 20cmDSV≤0.03ppm 1.7.5 10cmDSV≤0.01ppm *2、磁体重量(包括液氦) ≤2900KG 2.1 磁体长度≤160cm 2.2 病人检查通道最窄孔径≥60cm 2.3 病人检查通道长度≤60cm 2.4 两端喇叭型开口直径≥110cm 2.5 液氦消耗率≤0.03L/hr 3、梯度系统 3.1 梯度工作方式:非共振式 3.2 屏蔽方式:主动屏蔽 *3.3 最高梯度场强(单轴非有效值): 三轴同时皆可达≥33mT/m 3.4 最高梯度切换率(单轴非有效值): 三轴同时皆可达≥122T/m/s 3.5 工作周期:100% *3.6 最大FOV≥53厘米 3.7 梯度线性度(最大扫描视野，V-RMS) ≤1.4%，必须提供Datasheet相关证明 3.8 梯度减噪系统:特殊梯度减噪设计,有效减低梯度噪声 3.9 冷却方式:水冷 4、病人检查环境 4.1 具备双向病人通话系统 4.2 具备提供防磁耳机 4.3 具备磁体内可调节病人通风系统 4.4 具备磁孔内病人照明系统 4.5 具备磁体内病人双向通话麦克风及扩音器系统 4.6 检查床最大承重≥250KG 4.7 检查床最低位置≤52cm 4.8 扫描床移动扫描范围≥215cm 4.9 扫描床水平进床最大速度≥180mm/sec 5、射频系统 5.1 射频功率≤18kw 5.2 射频发射带宽≥610kHz 5.3 射频噪声水平≤0.5dB 5.4 具备所有线圈皆有前置放大器 5.5 具备所有线圈免调谐 5.6 具备并行采集射频通道平台(SENSE或EXCITE iPATPLUS) 5.7 射频通道数 5.8 Tim技术≥32通道 5.9 非TIM技术≥8通道 *6、各射频通道同时接收带宽≥3MHz 7、高密度线圈（非TIM技术），要求配置 7.1 具备一体化体部多功能正交线圈 7.2 神经血管相控阵线圈 7.3 全脊柱相控阵线圈 7.4 体部相控阵线圈 7.5 多功能柔性线圈 7.6 头相控阵线圈 7.7 膝关节线圈 7.8 乳腺成像装置 8、如果为TIM技术，要求配齐76线圈单元 8.1 体部正交线圈≥2单元 8.2 头矩阵线圈≥12单元 8.3 颈矩阵线圈≥4单元 8.4 脊柱矩阵线圈≥24单元 8.5 体部矩阵线圈×3个:每个线圈≥6单元 8.6 外周血管矩阵线圈≥16单元 8.7 膝足下肢关节线圈≥4通道 8.8 具备多通道通用柔性相控阵线圈 8.9 具备环形表面线圈 8.10 膝关节线圈 8.11 乳腺线圈 9、计算机 9.1 四核CPU，主频≥2.6G 9.2 主内存≥8G 9.3 硬盘容量 9.3.1 图像硬盘容量≥140G 9.3.2 数据硬盘容量≥140G 9.3.3 硬盘图像存储量≥250,000幅(256×256) 9.3.4 DVD图像存储≥4.7G 9.3.5 DVD图像存储量:40,000幅图像(256×256矩阵,未压缩) 9.3.6 具备图像重建处理器 9.3.7 图像重建器主频:四核，≥2.6G 9.3.8 图像重建器内存≥8G 9.3.9 图像重建速度(幅/秒)(256X256矩阵全FOV) ≥1300幅/秒 9.3.10 同步扫描重建功能 9.3.11 扫描,采集,重建时可同时进行阅片,后处理,照相和存盘功能 9.3.12 显示器:23寸彩色LCD率液晶显示器 9.3.13 显示图像分辨率: 1900 × 1200 10、后处理接口 10.1 具备软件控制照相技术 10.2 具备DICOM3.0接口及与PACS网络连接（包括打印，传输，接收，查询等功能） 10.3 具备标准激光相机数字接口 11、扫描参数 11.1 最大采集重建矩阵≥1024×1024 11.2 3D GRE最短TR时间(256矩阵) ≤1.42ms 11.3 3D GRE最短TE时间(256矩阵) ≤0.55ms 11.4 3D GRE最短TR时间(128矩阵) ≤1.02ms 11.5 3D GRE最短TE时间(128矩阵) ≤0.4ms 11.6 EPI(128X128，常规成像视野)最短回波间隔≤0.49ms 11.7 采集弥散加权系数B值≥10000 11.8 最小扫描视野≤0.50cm 11.9 3D最薄扫描层厚≤0.05mm 11.1 2D最薄扫描层厚≤0.5mm 11.11 FSE序列最大回波链≥256 11.12 EPI序列最大回波链≥255 12、扫描技术与序列（文字描述如与各厂商不一致，请按相对应功能加以描述） 12.1 自旋回波序列，包括 12.1.1 具备2D/3D自旋回波序列 12.1.2 具备组织弛豫时间测量自旋回波序列 12.1.3 具备可选择角度的自旋回波 12.1.4 具备反转恢复序列 12.1.5 具备脂肪抑制序列 12.1.6 具备频谱特异式大范围脂肪抑制 12.2 快速自由水抑制序列,包括有： 12.2.1 具备快速自由水抑制T2W成像技术 12.2.2 具备快速自由水抑制T1W成像技术 12.3 具备快速反转恢复序列（脂肪,水抑制） 12.4 具备单独灰质或白质成像技术 12.5 梯度回波序列（2D/3D）,包括： 12.5.1 具备亚秒T1加权技术 12.5.2 具备亚秒T2加权技术 12.6 具备2D平衡式梯度回波序列（B-FFE、True-FISP、FIESTA） 12.7 具备3D平衡式梯度回波序列（B-FFE、True-FISP、FIESTA） 12.8 具备超快速场回波序列 12.9 具备3D动态增强技术（3D VIBE或LAVA-XV或e-THRIVE） 12.1 具备匙孔成像技术 12.11 具备三维成像 12.12 具备多块三维 12.13 具备多叠三维 12.14 具备智能化K空间快门成像 12.15 具备磁化转移对比 12.16 具备单次激发EPI技术 12.17 具备多次激发EPI技术 12.18 具备流入法血管造影 12.19 具备快速流入法血管造影 12.2 具备造影剂增强MRA 12.21 具备倾角优化非饱和激发技术 12.22 具备相位对比血管造影 12.23 具备快速相位对比血管造影 12.24 伪影消除技术,包括： 12.24.1 具备BLADE或MultiVane或PROPELLER 12.24.2 具备恒定信号技术 12.24.3 具备流动校正梯度波形技术 12.24.4 具备区域饱和技术 12.24.5 具备卷积伪影去除技术 12.24.6 具备呼吸门控 12.24.7 具备外周门控 12.24.8 具备心电相量门控技术 12.24.9 具备智能伪影消除技术 12.24.10 具备Manual-Start/Stop 12.25 节时技术，包括： 12.25.1 具备半扫描技术 12.25.2 具备部分扫描采集技术 12.25.3 具备矩形视野采集技术 12.25.4 具备三维重叠连续采集技术 12.25.5 具备预备相位极小化扫描技术 13、神经系统成像技术,包括： 13.1 具备自动移床全脊柱成像 13.2 具备脊髓成像、神经根成像 13.3 具备脑脊液抑制技术 13.4 具备脂肪抑制 13.5 具备灰,白质最佳显示成像 13.6 弥散成像技术，包括： 13.6.1 具备ADC成像 13.6.2 具备各向同性采集 13.6.3 具备各向异性采集 13.6.4 具备一次扫描完成三弥散方向采集最多≥3个方向 14、心血管成像技术,包括： 14.1 具备2D/3D时飞法技术 14.2 具备连续多层3D时飞法技术 14.3 具备门控流入技术 14.4 具备2D/3D相位对比技术 14.5 具备相位对比MRA技术 14.6 具备磁化传递（MTC法）血管造影 14.7 具备超快速血管成像技术 14.8 具备3D多层重叠成像技术 14.9 具备可变反转角度射频技术 15、具备血管选择技术 15.1 具备最大强度投影技术 15.2 具备多层面重建技术 15.3 具备实时交互式血管图像处理 15.4 具备智能化造影剂跟踪透视增强血管造影成像技术（Bolus Trak或Fluro Trigger或Care Bolus或Visual prep） 15.5 具备移床血管造影剂跟踪技术（Smart Step或Tim CT Angiography或MobiFlex） 15.6 具备区域饱和技术 15.7 具备心脏成像白血、黑血技术 16、具备并行采集技术成像(SENSE /ASSET /iPAT) *17、并行采集最大加速因子≥8 18、具备并行采集技术成像可与现有任何快速成像技术合并使用(如:FSE,EPI,FGE) 19、具备并行采集技术成像可与3DPCA血管成像技术结合使用 20、具备双侧乳腺同时增强矢状面成像（VIEWS或VIBRANT-XV或BLISS） 21、具备多站式全身成像图像自动无缝拼接软件（Tim Workflow Suite或MobiView或MR Pasting） 22、具备全身弥散成像技术（类PET） 23、具备信/噪指示器 24、具备预扫描技术 25、设备安装条件 25.1 最小磁体间安装面积≤20平方米 25.2 使用电压:三相380V 25.3 使用电流频率:50Hz或60Hz 25.4 电能消耗 25.4.1 待机状态≤9kW 25.4.2 工作状态时平均消耗≤15kW 25.4.3 最大峰值≤27kW 26、附属设备 26.1 病人监视器 26.2 病人观察摄影机 26.3 水冷机 26.4 计算机UPS

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Product Name

Quantity

Main Technical Data

Remarks

1

Magnetic Resonance imaging

one set

Ⅰ. Equipment Name： Magnetic Resonance imaging one set. Ⅱ. technical parameters: *1. Magnet field strength：1.5T 1.1 Magnet shielding：Active shielding 1.2 External Interference shielding: External Interference shielding 1.3 Shim type :active + passive + dynamic 1.4 Auto-Shim time≤5s 1.5 5 Gauss Fringe fields Axial:axial x radial: ≤3.8 x 2.4 m 1.6 Temporal field stability：≤0.1ppm/h 1.7 Homogeneity specifications：V－RMS Method 1.7.1 50cmDSV≤0.5ppm 1.7.2 40cmDSV≤0.20ppm 1.7.3 30cmDSV≤0.07ppm 1.7.4 20cmDSV≤0.03ppm 1.7.5 10cmDSV≤0.01ppm *2. magnet weight（include liquid helium）≤2900KG 2.1 magnet length≤160cm 2.2 The patient examination Channel narrowest aperture≥60cm 2.3 Patient check channel length≤60cm 2.4 At both ends of the trumpet-shaped opening diameter≥110cm 2.5 Liquid helium consumption rate≤0.03L/hr 3. Gradient system 3.1 Gradient operation mode：no-resonance mode 3.2 Magnet shielding：Active shielding *3.3 Max amplitude≥33mT/m ( for all three axes) 3.4 Max slewrate≥122T/m/s ( for all three axes) 3.5 System duty cycle:100% *3.6 Max FOV≥53cm 3.7 Gradient linearity (maximum scan field of view, V-RMS): ≤ 1.4%, must provide Datasheet prove. 3.8 Gradient Noise Reduction System :Special the gradient noise abatement design, effectively reduce the gradient noise 3.9 Cooling method: Water-cooled 4. Patient examination environment 4.1 provided Bi-patient call system 4.2 provided Antimagnetic headphones 4.3 Provided Magnetic body can adjust the patients ventilation system 4.4 provided The magnetic holes patients lighting system 4.5 provided Magnetic body patients double-talk microphone and loudspeaker system 4.6 Check-bed maximum load-bearing≥250KG 4.7 Check bed lowest position≤52cm 4.8 Mobile scanning range of the scanning bed≥215cm 4.9 Maximum speed of the scanning bed level into bed≥180mm/sec 5.1 RF amplifier capability≤18kw 5.2 Transmitting bandwidth≥610kHz 5.3 Noise rating≤0.5dB 5.4 provided All coil have their respective preamplifiers 5.5 provided All coils are free of tuning 5.6 provided Parallel acquisition technique platform (SENSE /ASSET/IPAT) 5.7 Number of simutaneous parallel terminal transmit channel of phased array RF 5.8 Tim system≥32 5.9 non Tim system≥8 *6. Receiving bandwidth≥3MHz 7. High density coil (non TIM system), requires configuration 7.1 provided The integration body multifunctional orthogonal coil 7.2 Neurovascular phased array coil 7.3 Spine phased array coil 7.4 Body phased array coil 7.5 Multi-purpose Flex Coil 7.6 Head phased array coil 7.7 Knee Coil 7.8 Breast imaging support 8. If it have tim system ,it must be deliver the Tim system, and need match:the number of coil units to cover the whole body during one scanning ≥76, which includes: 8.1 Body coil≥2units 8.2 Head coil≥12units 8.3 Neck coil≥4units 8.4 spine coil≥24units 8.5 body coil totally 24 units each one≥6units 8.6 Peripheral vascular matrix coil≥16units 8.7 The knee foot lower limb joint coil≥4units 8.8 provided Multi-channel universal flexible phased array coil 8.9 provided Circular surface coil 8.10 Knee Coil 8.11 Breast Coil 9. Computer systems 9.1 Main CPU primary frequency≥2.6G 9.2 Host memory≥8G 9.3 hard disk capacity 9.3.1 Image storage hard disk capacity≥140G 9.3.2 data storage hard disk capacity≥140G 9.3.3 Image storage capacity≥250,000 (256×256) 9.3.4 DVD image storage≥ 4.7G 9.3.5 DVD image storage capacity:40,000 images (256 × 256 matrix, uncompressed) 9.3.6 provided Image reconstruction processor 9.3.7 Image reconstruction frequency Quad-Core, ≥ 2.6G 9.3.8 Image reconstruction memory≥ 8G 9.3.9 Image reconstruction speed (frames / sec) (256X256 matrix full FOV) ≥ 1300 frames / sec. 9.3.10 Synchronous scan reconstruction 9.3.11 Scanning, acquisition, reconstruction can read the piece, post-processing, photographic and archiving functions 9.3.12 Monitor: 23-inch color LCD monitor 9.3.13 Image resolution is displayed: 1900 × 1200 10. Interface for post-procession 10.1 provided Software control print technology 10.2 provided DICOM3.0 interface for network connection to RIS/PACS (including DICOM print, send, receive, storage, query, worklist and so on） 10.3 provided Standard DICOM3.0 digital interface for laser camera 11. Scanning parameters 11.1 Largest acquisition reconstruction matrix≥1024×1024 11.2 The 3D GRE shortest TR time (256 matrix) ≤1.42ms 11.3 The 3D GRE shortest TE time (256 matrix) ≤0.55ms 11.4 The 3D GRE shortest TR time (128 matrix) ≤1.02ms 11.5 The 3D GRE shortest TE time (128 matrix) ≤0.4ms 11.6 EPI (128X128, conventional imaging field of view) the shortest echo spacing≤0.49ms 11.7 Collected diffusion-weighted coefficient B value≥10000 11.8 Minimum scan field of view≤0.50cm 11.9 3D thinnest slice thickness≤0.05mm 11.1 2D thinnest slice thickness≤0.5mm 11.11 The FSE sequence biggest echo train≥256 11.12 The EPI sequences largest echo chain≥255 12. Scan sequence (text descriptions, such as inconsistent with vendors, corresponding to the function to be described) 12.1 Scanning technology and sequence 12.1.1 provided Spin Echo，including: 12.1.2 provided 2D/3D Fast Spin Echo (FSE) 12.1.3 provided Single Shot Fast Spin Echo (SSFSE) 12.1.4 provided Angle Select (SE) 12.1.5 provided Inversion Recovery (IR) 12.1.6 provided Fat Saturation 12.2 provided Spectral Spatial Fat Suppress 12.2.1 Fluid Attenuated Inversion Recovery (FLAIR), including: 12.2.2 provided FLAIR-T1W 12.3 provided FLAIR-T2W 12.4 provided FRFSE (fat, water saturation) 12.5 provided GRE（2D/3D） 12.5.1 provided Short TR T1W sequence 12.5.2 provided Short TR T2W sequence 12.6 provided 2D balanced gradient echo sequence (B-FFE, True-FISP, FIESTA) 12.7 provided 3D balanced gradient echo sequence (B-FFE, True-FISP, FIESTA) 12.8 provided Ultra Fast Gradient Echo 12.9 provided 3D dynamic contrast-enhanced technology (3D VIBE or LAVA-XV or the e-THRIVE) 12.1 provided Key-Hole 12.11 provided 3D imaging 12.12 provided Multi-Slab 3D 12.13 provided Overlapped Multi-Slab 3D 12.14 provided Fast K-space optimized sequence 12.15 provided Magnetic Transfer Contrast 12.16 provided Single Shot EPI 12.17 provided Multi Shot EPI 12.18 provided TOF angiography 12.19 provided Fast TOF angiography 12.2 provided CE-MRA 12.21 provided Flip Angle Optimized sequence 12.22 provided Phase Contrast angiography 12.23 provided Fast Phase Contrast angiography 12.24 Artifact reduction technique, includes: 12.24.1 provided The BLADE or MultiVane or PROPELLER 12.24.2 provided Stable Signal technology 12.24.3 provided Flow Compensation 12.24.4 provided Regional Saturation 12.24.5 provided Convolutional artifact eliminating 12.24.6 provided Respiratory gating 12.24.7 Peripheral gating 12.24.8 provided ECG phasor gating technology 12.24.9 provided Smart artifact reduction technique 12.24.1 provided Manual-Start/Stop 12.25 provided Half scanning technique 12.25.1 provided Fractional scanning acquisition technique 12.25.2 provided Partial FOV 12.25.3 provided 3D Multi-slab overlapping technique 12.25.4 provided Minimal phase-preparation scanning technique 12.25.5 provided Flip Angle Optimized sequence 13. provided Neurology software package 13.1 provided Automatically shift bed full spine imaging 13.2 provided Spinal cord imaging, imaging of nerve root 13.3 provided Cerebrospinal fluid suppression technology 13.4 provided Fat suppression 13.5 provided Imaging of gray and white matter best display 13.6 provided Diffusion weighted imaging, including: 13.6.1 provided Apparent Diffusion Coefficient imaging 13.6.2 provided Isotropic Acquision 13.6.3 provided Anisotropic Acquision 13.6.4 provided Three direction diffusion acquision simultaneously 14. provided Cardiovascular imaging technique, including: 14.1 provided 2D/3D TOF 14.2 provided Continuous multi-slab TOF 14.3 provided Gated 2D TOF 14.4 provided 2D/3D phase contrast 14.5 provided Phase contrast MRA 14.6 provided The magnetization transfer the (MTC Act) angiography 14.7 provided Super fast vascular imaging 14.8 provided 3D slab overlapping 14.9 provided Variable flip angle RF technique 15. provided Blood vessel selction (Artery Vein Seperation) 15.1 provided Maximum Intensity Projection 15.2 provided Multi-plane reconstruction 15.3 provided interactive vascular imaging 15.4 provided Smart contrast-agent tracing with automatic bed moving 15.5 provided The systemic vascular contrast agent tracking moving bed technology (Smart Step or Tim CT Angiography or MobiFlex) 15.6 provided Local saturation 15.7 provided The cardiac imaging white blood, black blood Technical 16. provided Parallel Acquisition Techniques imaging (SENSE / ASSET / iPAT) *17. The parallel acquisition maximum acceleration factor≥ 8 18. provided Parallel imaging（SENSE/ASSET/IPAT） can be used in all sequence（et:FSE, EPI, FGE） 19. provided Parallel Acquisition Techniques imaging can be used in conjunction with 3DPCA vascular imaging technology 20. provided The bilateral breast at the same time enhanced sagittal imaging (VIEWS VIBRANT-XV or BLISS) 21. provided Multi-station automatic seamless stitching of body imaging image software (Tim Workflow Suite or MobiView or MR Pasting) 22. provided Systemic diffusion imaging (class PET) 23. provided Signal / noise indicator 24. provided Pre-scanning technology 25. Equipment installation conditions 25.1 Minimum magnet mounting area≤20square meter 25.2 Using the voltage:380V 25.3 Using the current frequency:50Hzor60Hz 25.4 Power consumption 25.4.1 Standby≤9kW 25.4.2 The work state average consumption≤15kW 25.4.3 Maximum peak≤27kW 26. Accessories 26.1 PATIENT OBSERVATION MONITOR 26.2 PATIENT OBSERVATION CAMERA 26.3 Waterchiller 26.4 Computer UPS