中圖分類號： TN709
文獻標識碼： A
DOI：10.16157/j.issn.0258-7998.212022
中文引用格式： 朱炯，李康，徐亦飛. 基于FPGA的心臟掃描自動管電流調制控制系統設計與分析[J].電子技術應用，2021，47(12)：31-34，38.
英文引用格式： Zhu Jiong，Li Kang，Xu Yifei. Design and analysis of cardiac scans use dose of modulation control system based on FPGA[J]. Application of Electronic Technique，2021，47(12)：31-34，38.

Design and analysis of cardiac scans use dose of modulation control system based on FPGA

Abstract： When applying a cardiac scan, the image reconstruction only needs the expose data that sampled in the cardiac diastolic phase, and other periods sampled data are discarded. Therefore, the forward-looking scan pattern can be used in order to reduce the radiation dose. Due to the different cross sections of the scanning plane, the dose of modulation(DOM) can be used to reduce the radiation dose further. According to the attenuation difference of the cross section of the scanned object at different angles, the DOM adjusts the mA value based on the angles in real time, so the DOM can improve the xray efficiency and reduce the radiation dose. By combining the characteristics of the two, a forward-looking automatic tube current modulation control system for cardiac scanning is designed, which realizes the effect of reducing cardiac scanning radiation and getting good image quality.

Key words : FPGA；cardiac scan；DOM