使用四维计算机断层扫描来评估关节肌长度
Takuya Mori1,2, Satoshi Matsushita3, Terumasa Morita1
1Department of Cardiovascular Surgery, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.
World journal of cardiology
|May 31, 2024
概括
四维CT (4D-CT) 准确地测量了关节肌长度 (CL) 和缩期间的行为. 这种成像技术有助于规划使用人造带肌的 mitra valvuloplasty 程序.
科学领域:
- 心血管成像 - 心血管成像
- 医疗工程 医学工程
- 心脏外科手术 心脏外科手术
背景情况:
- mitrale 吐可以通过使用人工 chordae tendineae 的 mitrale valvuloplasty 来治疗.
- 精确测量人造肌长度 (CL) 是至关重要的,但缺乏客观指数.
- 四维X射线微型计算机断层扫描 (4D-CT) 提供动态的3D评估,用于准确的CL测量.
研究的目的:
- 通过使用4D-CT. 调查缩期间的关节肌的动态行为和长度.
- 建立一个准确的手术前评估方法,用于手术规划的肌长度.
主要方法:
- 70岁以上的11名成年人没有心交病,接受了4D-CT,包括20个心脏阶段.
- 关节肌 (cA和cP) 的长度从早期心缩到早期心缩进行测量.
- 评估了最大肌长度 (cA (max),cP (max)) 与身体表面积 (BSA) 的相关性.
主要成果:
- 在所有受试者中, 4D-CT 启用了对额头前侧叶片 chordae tendineae (cA 和 cP) 的测量.
- 平均最大长度为cA (max) = 20.2mm和cP (max) = 23.5mm,其中cP (max) 显著更长.
- 肌的长度在缩期间有所变化,cP显示了延长的平原,并且观察到与BSA的相关性 (cA的r=0.60,cP的r=0.78).
结论:
- 4D-CT是精确测量关节肌长度和行为的一个有价值的工具.
- 这种技术支持改善了对心肌膜整形手术的手术规划.
- 使用4D-CT动态评估chordea tendineae增强了对中枢功能的理解.
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