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相关概念视频

Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

218
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
218
Computed Tomography01:10

Computed Tomography

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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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...
88
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

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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...
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相关实验视频

Updated: Jun 13, 2025

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
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基于CT的肺功能成像技术的进步,用于胸部放射治疗.

Suyan Bi1, Qingqing Yuan2, Zhitao Dai2

  • 1School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.

Frontiers in oncology
|September 17, 2024
PubMed
概括

基于CT的肺功能成像通过识别功能性肺部区域来增强胸部放射治疗. 这种方法可以避免额外的辐射和成本,改善治疗计划和肺损伤监测.

关键词:
基于CT的功能成像 (CTVI)四维CT (四维CT-CT) 是指四维CT (四维CT-CT) 是指四维CT (四维CT) 是指四维CT.磁共振成像 (MRI) 的使用.perfusion 图像成像技术的使用辐射疗法 辐射疗法单光子发射计算机断层扫描 (SPECT) 是一种单光子发射计算机断层扫描.通风成像仪的使用.

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科学领域:

  • 医疗成像医学成像
  • 辐射疗法 辐射疗法
  • 肺功能评估 肺功能评估

背景情况:

  • 胸部放射治疗需要精确的准,以尽量减少对健康的肺组织的损伤.
  • 评估肺功能对于优化辐射剂量和预测治疗结果至关重要.
  • 目前用于肺功能评估的方法可能涉及额外的程序或辐射暴露.

研究的目的:

  • 审查基于CT的肺功能成像在放射治疗中的好处和挑战.
  • 探索4D-CT和终吸入/终呼气CT等技术,用于功能性肺部划界.
  • 确定该领域未来研究的方向.

主要方法:

  • 对基于CT的肺功能成像技术的现有文献的审查.
  • 使用阶段解析4D-CT和静态CT扫描的研究的分类和分析.
  • 提取功能参数,如肺体积和通风分布.

主要成果:

  • 基于CT的肺功能成像利用常规CT扫描,避免额外的辐射和成本.
  • 它可以识别不同的功能性肺部区域,用于精确的放射治疗计划.
  • 这种技术有助于最大限度地减少对健康组织的辐射,并预测/检测肺损伤.

结论:

  • 基于CT的肺功能成像为胸部放射治疗提供了显著的优势.
  • 它通过允许功能性肺评估来提高治疗效率和患者安全.
  • 需要进一步的研究来克服当前的挑战,并优化临床应用.