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重新考虑下垂体微腺瘤的MRI协议:优先考虑非对比成像,以确保安全的随访

Fariba Zarei^1,2, Farideh Nematollahi², Asadolah Jalil²

¹Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 71936-35899, Iran.

Tomography (Ann Arbor, Mich.)

|September 26, 2025

概括

非对比的MRI可以可视化大多数垂体小腺瘤,排除显著的生长,并支持其在后续成像中使用. 这种方法可以降低患者使用加多对比剂的风险.

科学领域:

放射学放射学是一门学科.
神经成像是一种神经成像.
在瘤学瘤学.

背景情况:

动态对比增强型MRI (DCE-MRI) 是垂体瘤诊断和监测的标准.
基于加多的对比剂 (GBCA) 携带组织保留和不良反应的风险.
评估随访的非对比MRI序列对于减轻这些风险至关重要.

研究的目的:

评估无对比度MRI (T1W/T2W) 的灵敏度,以对 pituitary microadenoma进行随访.
将非对比MRI检测率与DCE-MRI进行比较.
评估瘤的稳定性随着时间的推移而没有对比剂.

主要方法:

对300个下垂体MRI扫描 (2020-2024) 的回顾性审查.
包括确诊微腺瘤 (≤10毫米) 的患者.
盲目放射科医生对非对比 (T1W/T2W) 和DCE-MRI序列的分析.

主要成果:

检测率:T1W (55.7%),T2W (70.9%),DCE-MRI (88.6%) 在79种微腺瘤中.
在随访期间没有观察到显著的瘤生长 (平均尺寸为4.80 ± 2.3毫米,而不是4.81 ± 2.4毫米).
p值>0.5表明没有统计学上显著的变化.

结论:

非对比的MRI可视化了大多数检测到的微腺瘤.
排除了显著的增长,支持稳定病例的对比缺失.
消除gadolinium对比度可能会降低成本和患者的风险.

关键词:

动态核磁共振成像 (MRI)卡多利尼姆 (gadolinium) 是一种电子产品.微腺瘤是一种微腺瘤.没有对比度的MRI.下垂体腺瘤的前列腺瘤.

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