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相关概念视频

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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...
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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...
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...

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相关实验视频

Updated: May 13, 2026

3D Modeling of the Lateral Ventricles and Histological Characterization of Periventricular Tissue in Humans and Mouse
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使用多器官成像和机器学习来描述脑心血管衰老.

Yalda Amirmoezzi1, Vanessa Cropley2,3, Sina Mansour L4,5

  • 1Systems Lab, Department of Psychiatry, The University of Melbourne, Melbourne, Victoria 3010, Australia yamirmoezzij@student.unimelb.edu.au.

The Journal of neuroscience : the official journal of the Society for Neuroscience
|February 19, 2025
PubMed
概括
此摘要是机器生成的。

心血管衰老与健康成年人的特定大脑网络变化有关. 这项研究探讨了大脑与心脏的关系,以了解衰老疾病.

关键词:
这就是为什么MRI是MRI.大脑年龄 大脑年龄大脑网络 大脑网络大脑心脏的心脏.心脏年龄 年龄 心脏

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科学领域:

  • 神经科学是一个神经科学.
  • 心脏病学 心脏病学
  • 老年学是一门学科.

背景情况:

  • 大脑和心血管系统经历与年龄相关的变化.
  • 了解这些变化之间的联系对于健康衰老至关重要.
  • 大脑和心脏疾病的同时发生随着年龄的增长而增加.

研究的目的:

  • 为了确定与年龄相关的大脑和心血管变化之间的联系的程度.
  • 研究心脏的生物衰老与大脑的生物衰老的关系.
  • 提供关于老龄化中的脑心关系的见解.

主要方法:

  • 使用了规范模型和来自2,904名健康成年人的英国生物库数据.
  • 使用成像数据估计大脑和心脏的生物年龄.
  • 从大脑和心血管成像中分析了结构,形态和功能特征.

主要成果:

  • 心血管衰老选择性地与特定大脑网络的衰老有关.
  • 功能性和生理性心血管衰老与突出,默认模式和体力运动网络的衰老相关.
  • 皮下衰老也显示出与心血管衰老的关联.

结论:

  • 心血管衰老会影响特定的大脑网络和皮层下结构.
  • 这些发现为大脑和心脏衰老的相互联系提供了洞察力.
  • 可能改善对老年人脑部和心脏疾病的增加流行程度的理解.