解剖学的肺呼吸成像用于精确的功能性肺避开辐射疗法
Zhi Chen1, Zihan Li1, Yu-Hua Huang1
1Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China, People's Republic of China.
Physics in medicine and biology
|January 31, 2025
概括
这项研究引入了一种解剖学的肺透气成像方法 (VIaw),以评估肺功能并帮助辐射规划. VIaw有效地识别肺部区域,包括那些具有可恢复功能的肺部区域,以改进治疗策略.
科学领域:
- 医疗成像医学成像
- 辐射瘤学 辐射瘤学
- 肺功能评估 肺功能评估
背景情况:
- 肺癌治疗计划需要精确评估肺膜功能.
- 由瘤引起的呼吸道堵塞使功能性肺部细分复杂化.
- 现有的方法可能无法充分区分可恢复和不可恢复的肺功能.
研究的目的:
- 提出一种创新的方法,用于生成解剖学的肺呼吸图像 (VIaw).
- 为了能够对肺膜和瘤阻塞部分进行功能评估,以便进行放射治疗规划.
- 定义功能性肺体积 (HFV,LFV,RLFV),以指导治疗优化.
主要方法:
- 使用基于超声素的方法生成初始通风图像 (VIsvd).
- 通过在VIsvd.中将阻塞段的功能设置为零来创建解剖学通风图像 (VIaw).
- 三个强度调节的光子计划 (aPlan,fPlan,rfPlan) 基于不同的功能性肺指导策略而设计.
主要成果:
- 在低功能体积 (LFV) 和瘤阻塞段之间发现了很高的重叠 (0.90 ± 0.07).
- 在VIaw和参考通风图像之间观察到中度至强度的相关性 (斯皮尔曼的 ρ = 0.72 ± 0.05).
- 可恢复功能肺部 (rLFV) 在rfPlan中获得的剂量明显低于aPlan和fPlan.
结论:
- VIaw 方法为功能性肺部评估提供了可靠的工具,与参考图像有很好的相关性.
- 在瘤阻塞段中,VIaw有效地识别可恢复的低功能体积 (rLFV).
- 这种方法支持放射治疗计划,以更好地保护整体肺功能.
相关概念视频
Radiological Investigation II: MRI and Ventilation Perfusion Scan
97
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
97
Radiological Investigation III: Pulmonary Angiogram and PET Scan
82
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
82


