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固定速率与固定注射时间在单通道对比增强腹部多探测器CT:对血管增强的影响

Luigi Camera¹, Vincenzo D'Ambrosio¹, Lorenzo Pinto

¹Department of Advanced Biomedical Sciences-Section of Radiology, University "Federico II", Via S. Pansini 5 - 80131 Naples, Italy.

The British journal of radiology

|October 7, 2024

概括

固定的注射时间 (FID) 与固定的速率 (FR) 相比,在单通道 (SP) 对比增强多探测器CT (CE-MDCT) 中改善了血管增强. 这种方法推用于优化腹部CT协议.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
CT CT 技术技术技术

背景情况:

单通道 (SP) 增强对比的多探测器CT (CE-MDCT) 通过结合血管和内脏增强来优化成像.
优化对比介质注入对于CE-MDCT的诊断图像质量至关重要.

研究的目的:

为了比较固定注射时间 (FID) 与固定速率 (FR) 的有效性,在SP CE-MDCT中提供对比介质.
评估这些注射方法对腹部CT血管增强的影响.

主要方法:

99名患有急性腹部疾病的患者接受了SP CE-MDCT.
对比介质被静脉注射使用固定速率 (2cc/s) 或固定注射持续时间 (55秒).
信号与噪声比 (SNR) 和对比与噪声比 (CNR) 为肝脏,腹腔大动脉和主门静脉计算.

主要成果:

在固定利率和固定期限组之间没有观察到显著的人口差异.
在固定注射持续时间组中,在腹腔大动脉和主门静脉中观察到更高的SNR和CNR,特别是在更高的体重类别中.
在较低的体重类别中没有发现任何显著差异,尽管固定时间组的注射率较低.

结论:

固定注射时间 (FID) 提供优越的血管增强相比固定速率 (FR) 在单通道腹部CE-MDCT.
在SP CE-MDCT协议中,FID应被认为是优化血管增强的首选注射方法.

关键词:

这是CT协议,CT协议,CT协议.相反的注射注射对比度.图像质量图像质量的质量的交付速度是多少扫描延迟时间扫描延迟时间

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