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| Design of an MRI quadrature-data acquisition card | |
| 引用本文： | JIANG Zhongde,ZU Donglin,GU Xiaofang. Design of an MRI quadrature-data acquisition card[J]. 自然科学进展(英文版), 2006, 16(3): 255-259 |
| 作者姓名： | JIANG Zhongde ZU Donglin GU Xiaofang |
| 作者单位： | Institute of Heavy Ion Physics, Beijing Key Laboratory of Medical Physics & Engineering, School of Physics, Peking University, Beijing 100871, China |
| 基金项目： | Supported by National Natural Science Foundation of China (Grant No. 19675005) |
| 摘 要： | A design of a quadrature-data acquisition card based on peripheral component interconnect (PCI) bus for mini-type magnetic resonance imaging (MRI) system is reported. It uses two high speed analog-to-digital converters (ADCs) to sample the MRI signals and two static random access memories (SRAMs) to store the data which will be read to the computer by PCI bus after sampling. All the logic control signals on the card are generated by the field programmable gate array (FPGA). The software Foundation3.1 is used to design the FPGA and achieve useful result after simulating and implementing. The card has some merits that normal commercial cards do not have. For example, the sampling parameters can be varied according to different pulse sequences. |
| 关 键 词： | MRI data acquisition FPGA PCI bus. |
Design of an MRI quadrature-data acquisition card |
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| JIANG Zhongde,ZU Donglin,GU Xiaofang. Design of an MRI quadrature-data acquisition card[J]. Progress in Natural Science, 2006, 16(3): 255-259 | |
| Authors: | JIANG Zhongde ZU Donglin GU Xiaofang |
| Affiliation: | Institute of Heavy Ion Physics,Beijing Key Laboratory of Medical Physics & Engineering,School of Physics,Peking University,Beijing 100871,China |
| Abstract: | A design of a quadrature-data acquisition card based on peripheral component interconnect (PCI) bus for mini-type magnetic resonance imaging (MRI) system is reported. It uses two high speed analog-to-digital converters (ADCs) to sample the MRI signals and two static random access memories (SRAMs) to store the data which will be read to the computer by PCI bus after sampling. All the logic control signals on the card are generated by the field programmable gate array (FPGA). The software Foundation3.1 is used to design the FPGA and achieve useful result after simulating and implementing. The card has some merits that normal commercial cards do not have. For example, the sampling parameters can be varied according to different pulse sequences. |
| Keywords: | MRI data acquisition FPGA PCI bus |
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