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基于瘦身体重的对比注射协议在肝脏CT:优化对比中量剂量的优化

Damiano Caruso¹, Domenico De Santis¹, Antonella Del Gaudio¹

¹Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome - Radiology Unit - Sant'Andrea University Hospital, Via Di Grottarossa, 1035-1039, 00189, Rome, Italy.

La Radiologia medica

|December 31, 2024

概括

700毫克/公斤低体重 (LBW) 的对比剂量在腹部CET扫描中提供了卓越的肝脏增强和图像质量. 较低的650 mgI/kg和600 mgI/kg剂量显示出可比但降低的图像质量指标.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
增强对比度的计算机断层扫描 (CECT)

背景情况:

在CECT中优化对比剂量对于诊断准确性至关重要.
基于低体重 (LBW) 的协议提供了对比剂的标准化方法.

研究的目的:

评估基于LBW的不同对比剂注射方案对肝脏增强和腹部CECT图像质量的影响.
为了确定最佳的对比剂量,以实现卓越的成像结果.

主要方法:

一项前性随机研究,涉及145名接受腹部CECT的患者.
三组接受了基于LBW的不同对比剂量:700 mgI/kg (A组),650 mgI/kg (B组) 和600 mgI/kg (C组).
定量分析包括信号与噪声比 (SNR),对比与噪声比 (CNR) 和霍恩斯菲尔德单位增强 (ΔHU);主观评估使用利克特尺度来评估图像质量.

主要成果:

与B组和C组相比,A组 (700 mgI/kg) 的SNR,CNR和ΔHU显著更高 (p <0.05).
B和C组显示了类似的定量增强指标 (p=1).
与B组和C组相比,A组在整体质量,文物和诊断信心方面获得了较高的主观图像质量分数 (p <0.05).

结论:

对比剂量为700毫克的/斤的LBW是最佳的腹部CECT.
这种较高的剂量产生了优越的肝脏增强和更好的图像质量.
较低的对比剂量 (650和600 mgI/kg) 会导致相似但降低的图像质量.

关键词:

这里是 Abdomen Abdomen 的意思.这就是为什么CTCTCTCTCTCT 相反的介质是对比的介质.肝脏肝脏肝脏肝脏

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