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基于MRI的伪CT序列作为产科骨盆测试中CT的无辐射替代方案:一项概念验证研究

Caroline Chabot¹, Mathilde Haegeman¹, Eya Chaouch¹

¹Department of Medical Imaging, Institut de Recherche Expérimentale et Clinique (IREC), Institut du Cancer Roi Albert II, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain (UCL), Brussels, Belgium.

European radiology experimental

|May 19, 2025

概括

无辐射的MRI序列,包括零回声时间 (ZTE) 和黑骨 (BB),提供可靠的产科骨盆测量测量. 这些伪CT-MRI技术与CT扫描显示出良好的一致性,为骨盆直径评估提供了一个有希望的替代方案.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
产科产科产科产科产科

背景情况:

盆腔测量对于产科分娩规划至关重要.
计算机断层扫描 (CT) 是标准的,但涉及辐射.
磁共振成像 (MRI) 使用专门的序列提供了一个无辐射的替代方案.

研究的目的:

评估MRI零回声时间 (ZTE) 和黑骨 (BB) 序列的可靠性.
评估这些MRI序列与基于CT的骨盆测量的一致性.
在一个以老年女性为主的女性人口中调查可行性.

主要方法:

对21名接受3T全身MRI的女性患者进行回顾性分析,采用ZTE和BB序列.
与18F-FDG PET/CT的低剂量CT进行比较.
由五名放射科医生测量产科联合直径 (OCD),脊间直径 (ISD) 和横横直径 (MTD).
评估使用ICC和可重复性/可重复性系数的读者内部,读者间和技术间的协议.

主要成果:

对CT,BB和ZTE序列的良好的读取器内部协议 (ICC ≥0.90).
跨序列的良好的读者间一致性 (ICC ≥ 0.88).
对于盆腔测量,ZTE和BB序列与CT表现出很好的一致性,与CT自身的重复性相当.

结论:

基于MRI的伪CT序列 (ZTE和BB) 为产科骨盆测量提供了可靠和可重复的测量.
这些无辐射的MRI技术与CT显示出良好的一致性,这表明了可行的替代方案.
建议在孕妇人群中进行进一步的验证.

关键词:

磁共振成像技术磁共振成像技术产科产科产科产科产科皮层测量皮层测量皮层测量结果的可复制性结果的可复制性断层扫描 (X射线计算) 的使用

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