实施一种高分辨率,高对比度的磁共振成像协议,用于腹膜间皮瘤延迟相延长
Milica Medved1, Hunter D D Witmer2, Ankit Dhiman2
1Department of Radiology, the University of Chicago, Chicago, IL, USA.
Quantitative imaging in medicine and surgery
|March 28, 2024
概括
高分辨率的磁共振成像 (MRI) 有效地描绘了腹间皮瘤. 最佳对比增强时间因瘤等级而异,需要延长的延迟成像阶段进行准确的评估.
科学领域:
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 围恶性瘤的传统成像具有挑战性.
- 精确评估腹膜疾病负担对于外科选择至关重要.
- 腹膜间皮瘤在使用标准成像技术时存在诊断困难.
研究的目的:
- 为了证明高分辨率,高对比度的MRI对腹膜间皮瘤的可行性.
- 探索延迟后对比成像在腹膜间皮瘤的最佳时机.
- 为了将MRI发现与瘤等级相关联.
主要方法:
- 来自14名患有恶性腹膜间皮瘤 (MPM) 的住院患者的MRI数据的前性分析.
- 使用了一种新的MRI协议,包括前对比冠状元高分辨率T2加权和后对比冠状元高分辨率3DT1加权的迪克森序列.
- 以五次延迟时间获得的对比后图像,延迟时间长达20分钟,对对比增强的定量和定性分析.
主要成果:
- 损伤对比增强率与瘤等级有很强的相关性 (r=-0.65,P<0.02).
- 早期延迟阶段 (12分钟) 对更高度瘤来说是最佳的.
- 晚期延迟阶段 (19分钟) 对较低度瘤是最佳的,与定性评估保持一致.
结论:
- 高分辨率,高对比度的MRI与延长后对比度成像对于腹膜间皮质瘤是可行的.
- 多重,延长的延迟MRI阶段 (长达20分钟) 是必要的,以获得最佳的成像.
- 最佳的成像时间取决于腹膜间皮瘤的具体程度.
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