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相关概念视频

Computed Tomography01:10

Computed Tomography

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...
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Imaging Studies for Cardiovascular System IV: CMRI01:21

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 for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...

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相关实验视频

Updated: Jul 23, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
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基于乳房镜的深度学习模型用于冠状动脉化.

Sangil Ahn1, Yoosoo Chang2,3,4, Ria Kwon2,5

  • 1Department of Electrical and Computer Engineering, Sungkyunkwan University, 2066, Seobu-Ro, Jangan-Gu, Suwon 16149, Republic of Korea.

European heart journal. Cardiovascular Imaging
|November 21, 2023
PubMed
概括

乳房镜可以使用深度学习模型预测心血管疾病风险. 这些模型对双重风险评估有希望,可与传统方法相比较.

关键词:
心血管疾病心血管疾病卷积神经网络是一种卷积神经网络.冠状动脉 冠状动脉深度学习是一种深度学习.乳房学 乳房学 乳房学

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相关实验视频

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科学领域:

  • 放射学 放射学是一门学科.
  • 心脏病学 心脏病学
  • 人工智能的人工智能

背景情况:

  • 乳房摄影主要用于乳腺癌查.
  • 乳房影像有可能预测心血管疾病 (CVD) 风险.
  • 冠状动脉 (CAC) 评分是冠状动脉事件的既定预测指标.

研究的目的:

  • 开发和评估深度学习模型,利用乳房图像来预测CAC分数.
  • 评估这些模型在识别有心血管事件风险的个体方面的表现.

主要方法:

  • 一个卷积神经网络 (CNN) 是使用一组训练数据集开发的 5235 韩国妇女接受了乳房扫描和 CAC 计算机断层扫描.
  • 使用了Resnet18模型,增强了对比学习策略.
  • 用灵敏度,特异性,AUROC和精度来评估模型性能.
  • 纳入年龄和更年期状态以评估它们对模型性能的影响.

主要成果:

  • 基于CNN的深度学习模型实现了0.761.76的AUROC.
  • 考虑到年龄和更年期状态,该模型的AUROC提高到0.776.
  • 深度学习模型的表现与弗雷明汉风险评分 (AUROC 0.736) 相当.

结论:

  • 基于乳房影像的深度学习模型显示了预测CAC分数的巨大潜力.
  • 这些模型为乳腺癌和心血管疾病的双重风险评估提供了有希望的方法.
  • 建议在不同人群中进行进一步验证,并与国家查计划进行整合.