化学疗法患者个性化低流速腹部对比增强计算机断层扫描的可行性分析:双源计算机断层扫描与低管电压
Yicun Zhang1, Dian Yuan1, Ke Qi1
1From the The Department of Radiology, The First Affiliated Hospital of Zhengzhou, University, Zhengzhou.
Journal of computer assisted tomography
|May 1, 2024
概括
低管电压计算机断层扫描 (CT) 使用减少对比剂流量为癌症患者提供有效的化疗后成像. 这种方法保持了诊断信心,同时提高了图像质量和降低了对比剂量.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 在瘤学瘤学.
背景情况:
- 癌症患者的化疗后成像通常面临由于危害血管的挑战.
- 双源计算机断层扫描 (CT) 是评估治疗反应的宝贵工具.
研究的目的:
- 评估使用低流速和低管电压的双源CT用于化疗后图像评估的可行性.
- 为了确定降低的参数是否会影响图像质量和诊断信心.
主要方法:
- 90名患者接受了腹部上部的对比增强CT扫描.
- 患者被随机分配到三个组,接受120kVp,100kVp或70kVp的扫描,并给予相应的对比剂量.
- 评估了定量和主观图像质量指标.
主要成果:
- 两组之间没有观察到主观图像得分的显著差异,除了脏.
- 70kVp组 (C组) 显示出优异的CT值,较低的噪声和更高的信号与噪声比和对比与噪声比.
- 与120kVp组相比,C组实现了对比剂量减少46%,注射速率减少22%.
结论:
- 使用70kVp的管电压与低流速是有效的化疗后瘤成像.
- 这种方法解决了受损血管系统的挑战,而不影响图像质量或诊断信心.
- 优化CT参数可以导致减少对比剂的使用.
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