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经过修改的呼吸触发的SPACE序列用于磁共振胆血管细胞造影

Dayong Jin¹, Xin Li¹, Yifan Qian¹

¹Department of Radiology, Xi'an Daxing Hospital, Xi'an, China.

European journal of radiology open

|April 29, 2024

概括

修改的呼吸触发空间 (RT-SPACE) 显著减少磁共振胆血管细胞造影 (MRCP) 扫描时间,而不会影响图像质量. 这种优化的MRCP技术提高了胰腺和胆道疾病的诊断效率.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
胃肠病学胃肠病学

背景情况:

磁共振胆血管细胞造影 (MRCP) 通常使用呼吸触发 (RT) 和屏息技术.
优化MRCP获取对于诊断胰腺和胆道系统疾病至关重要.

研究的目的:

为了比较三种MRCP获取模式:传统的RT-SPACE,修改的RT-SPACE和喘息 (BH) -SPACE.
评估扫描时间和图像质量,以优化胰腺和胆道疾病患者的MRCP使用.

主要方法:

从58名怀疑胰腺和胆道疾病的患者获得MRCP数据,使用1.5TMR扫描仪.
在传统RT-SPACE,修改RT-SPACE和BH-SPACE协议中比较扫描时间,信号噪声比 (SNR),对比噪声比 (CNR) 和图像质量.
使用弗里德曼测试与后期分析进行统计比较.

主要成果:

平均获取时间有很大的差异:传统的RT-SPACE (167.4s),修改的RT-SPACE (50.8s) 和BH-SPACE (18.0s) (P <0.001).
与BH-SPACE相比,RT-SPACE中的SNR和CNR显著更高 (P <0.05).与BH-SPACE相比,RT-SPACE中的SNR和CNR显著更高 (P <0.05).
在这三种模式中,在整体图像质量,清晰度,背景抑制或胰腺胆道系统可视化方面没有发现显著差异 (P >0.05).

结论:

修改后的RT-SPACE显著缩短了MRCP获取时间,同时保持了可比的图像质量.
根据患者的病情调整MRCP获取模式,可以提高检查成功率和诊断图像质量.

关键词:

屏住呼吸的方法磁共振胆血管细胞造影学磁共振胆血管细胞造影学磁共振成像技术磁共振成像技术呼吸系统触发的呼吸系统触发的

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