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相关概念视频

Correlations02:20

Correlations

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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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Correlation and Causation01:27

Correlation and Causation

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Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
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Correlation01:09

Correlation

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In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
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Radiological Investigation I: X-ray and CT01:30

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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...
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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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Correlation and Regression00:53

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In statistics, correlation describes the degree of association between two variables. In the subfield of linear regression, correlation is mathematically expressed by the correlation coefficient, which describes the strength and direction of the relationship between two variables. The coefficient is symbolically represented by 'r' and ranges from -1 to +1. A positive value indicates a positive correlation where the two variables move in the same direction. A negative value suggests a...
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相关实验视频

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Initiation of Metastatic Breast Carcinoma by Targeting of the Ductal Epithelium with Adenovirus-Cre: A Novel Transgenic Mouse Model of Breast Cancer
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转移性乳腺癌:放射学-病理学相关性

Ashley C Bragg1, Ravinder S Legha1, Qingqing Ding2

  • 1Department of Breast Imaging, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA.

Journal of breast imaging
|February 10, 2026
PubMed
概括

转移性乳腺癌 (MBC) 是一种罕见的,激进的三重受体阴性乳腺癌. 图像检测结果是不特定的,经常模仿良性瘤,需要仔细的放射和病理评估.

关键词:
乳房 美国 乳房乳腺病理学 乳腺病理学乳房学 乳房学 乳房学转塑性乳腺癌 (metaplastic breast carcinoma) 是一种乳腺癌.三重阴性乳腺癌是什么

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科学领域:

  • 在瘤学瘤学.
  • 放射学 放射学是一门学科.
  • 病理学 病理学 病理学

背景情况:

  • 转移性乳腺癌 (MBC) 是一种罕见的,具有攻击性的恶性瘤,其特点是表皮分化成介质细胞和/或状元件.
  • 它通常是一种三重受体阴性侵入性乳腺癌 (TNBC),具有非特异性成像发现.
  • 在绝经后的妇女中,MBC通常呈现为较大的质量,远程转移的发病率较高,但关节干扰的频率较低.

研究的目的:

  • 综述转移性乳腺癌的病理定义,临床表现和成像特征.
  • 突出MBC的差异诊断,强调其模仿良性乳腺病变的潜力.
  • 强调在差异诊断中考虑MBC的重要性,特别是在特定的临床发现中.

主要方法:

  • 审查定义MBC的病理特征.
  • 分析特征性成像检测结果,包括乳房影像,超声波 (美国) 和磁共振成像 (MRI).
  • 讨论临床表现和与非MBC乳腺癌的比较.

主要成果:

  • 乳房摄影通常显示有界面的质量;尖的特征比非MBC更少.
  • 超声波经常显示有囊空间的固体质量 ().
  • 核磁共振可能会显示T2高强度质量与边缘增强;发现可以模仿良性瘤.

结论:

  • 放射科医生应将MBC纳入具有非特异性成像特征的乳腺质量的差异诊断中,特别是在有明显发现的绝经后妇女中.
  • 在核心活检上准确地进行病理诊断可能是具有挑战性的,因为MBC的异质性.
  • 与其他侵入性乳腺癌 (包括其他TNBCs) 相比,转移性乳腺癌与更糟糕的长期预后有关.