在MR引导激光间歇性热疗法后的成像变化和临床结果
Lottem Bergman1, Ariel Agur2, Segev Gabay2
1Department of Neurosurgery, Tel Aviv Medical Center, Tel Aviv, Israel, lottemb@gmail.com.
Stereotactic and functional neurosurgery
|October 27, 2025
概括
导向MR激光间歇性热疗法 (MRgLITT) 显示在切除后的初始病变扩大,其次是减少. 用MRgLITT治疗的转移性脑病变实现了良好的局部控制,特别是当小于4cc时.
科学领域:
- 神经外科 神经外科
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 磁力共振导向激光间歇热疗法 (MRgLITT) 是对大脑深层病变的一种微创治疗方法.
- 废除后的成像变化和MRgLITT的长期结果尚未完全理解.
研究的目的:
- 为了评估脑瘤MRgLITT后的临床结果和时间体积变化.
- 为了描述MRgLITT程序后的成像动态.
主要方法:
- 对从2020年1月到2024年6月接受MRgLITT治疗的大脑瘤 (原发性和转移性) 的成年患者的回顾性分析.
- 使用Brainlab Elements在对比后T1加权MRI上测量的损伤体积和直径.
- 在最后一次随访时对本地控制的评估.
主要成果:
- 在29名患者中分析了32种病变 (21种转移,11种结质瘤),平均随访时间为23.4个月.
- 损伤量在消去后的第一个月增加了约250%,然后逐渐下降.
- 在76%的转移性病变中实现了局部控制,特别是那些<4cc和<16mm的病变;在3个月后结节增强预测了局部衰竭.
结论:
- MRgLITT为转移性脑病变提供了有效的局部控制,因此需要考虑早期的随访.
- 典型的剥离后成像包括最初的扩大,然后是收缩.
- 在MRgLITT后3个月内持续扩大或结节增强表明潜在的局部衰竭.
相关概念视频
Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies I: CT and MRI
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...


