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相关概念视频

Mutations01:35

Mutations

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Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
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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...
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相关实验视频

Updated: May 2, 2026

Stereotactic Radiosurgery for Gynecologic Cancer
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红外 - - 在立体放射性手术中高风险的正常组织.

Jun Yang1,2, Weihua Qi1,2, Lei Wang1

  • 1Junxin Precision Oncology Group Foshan Guangdong China.

Precision radiation oncology
|May 8, 2025
PubMed
概括

一个新的"红"概念量化了在立体射线手术/身体辐射疗法 (SRS/SBRT) 中正常组织损伤. 它使用生物等效剂量 (BED) 来指导治疗计划,并最大限度地减少辐射副作用.

关键词:
红色贝:红色贝是一种红色贝.生物等效剂量是生物等效剂量.正常组织的正常组织.立体的放射外科手术.毒性的毒性 毒性的毒性

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相关实验视频

Last Updated: May 2, 2026

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科学领域:

  • 辐射瘤学 辐射瘤学
  • 医学物理 医学物理
  • 放射治疗规划 放射治疗规划

背景情况:

  • 在立体射线手术/立体身体辐射疗法 (SRS/SBRT) 中,高处方剂量可以超过正常组织剂量限制.
  • 量化和理解正常组织损伤对于优化SRS/SBRT治疗至关重要.

研究的目的:

  • 引入和定义"红"概念,用于在SRS/SBRT中量化正常组织剂量.
  • 探索红概念在放射治疗规划中的临床影响.

主要方法:

  • 使用生物等效剂量 (BED) 概念来定义红.
  • 整合生物因素 (连续/并行器官) 和物理因素 (剂量梯度,分布,分化) 来解释红.

主要成果:

  • 红概念为定义和量化周围正常组织的辐射剂量提供了一个框架.
  • 该研究讨论了通过考虑各种放射生物学和剂量计参数来解释红.

结论:

  • 红概念为评估和管理SRS/SBRT中正常组织并发症概率提供了有价值的工具.
  • 实施红概念可以帮助改善治疗计划的优化和减少辐射引起的毒性.