使用化学交换和转移成像技术对状腺斑块进行表征
Yasuhisa Kanematsu1, Yuki Kanazawa2, Kenji Shimada3
1Department of Neurosurgery, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-Cho, Tokushima, 770-8503, Japan. yasuhisa_kanematsu@yahoo.co.jp.
Neuroradiology
|June 12, 2024
概括
使用化学交换和转移 (CEST) -MRI的胺基质子转移 (APT) 成像可以识别不稳定的頸動脈斑. 升高的APT信号与斑块内出血和患者症状相关,有助于术前评估.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 放射学 放射学是一门学科.
- 心血管研究研究心血管研究
背景情况:
- 在手术前对动脉斑块进行评估,对于安全有效的复血管化手术至关重要.
- 识别不稳定的斑块,特别是那些有斑块内出血的斑块,对于风险分层至关重要.
研究的目的:
- 评估化学交换和转移 (CEST) -MRI的实用性,特别是胺质子转移 (APT) 成像,作为手术前诊断工具,用于动脉斑块.
- 为了将APT信号强度与组织病理学发现和临床表现相关联.
主要方法:
- 胺质子转移 (APT) 信号强度测量了34名接受动脉内关节切除术的患者.
- 斑块根据APT信号强度进行分类 (A组:≥1.90E-04,B组:<1.90E-04).
- 组织病理学评估将斑块分类为斑块内出血阳性 (tVI+) 或阴性 (tVI-).
主要成果:
- 在较高的APT信号和内出血 (tVI+) 存在之间发现了显著的相关性.
- 与B组 (45%) 相比,A组 (较高的APT信号) 的tVI+斑块患病率显著更高 (100%).
- 症状患者或患有狭窄症恶化的患者在A组 (75%) 比B组 (36%) 更频繁.
结论:
- 在CEST-MRI中升高的APT信号表明心血管斑块不稳定,特别是那些有内出血的人.
- APT成像显示承诺作为一个非侵入性的手术前工具,用于评估状腺斑块的特征和识别高风险患者.
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