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相关概念视频

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.
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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 II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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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.
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Genomics02:02

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Imaging Studies I: CT and MRI01:14

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Computed Tomography (CT) scan:
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相关实验视频

Updated: Jul 19, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
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基于CT的放射基因组学框架用于COVID-19使用ACE2成像表示.

Tian Xia1, Xiaohang Fu2, Michael Fulham2,3

  • 1School of Computer Science, Faculty of Engineering, The University of Sydney, Sydney, NSW, 2006, Australia. Tian.Xia@sydney.edu.au.

Journal of digital imaging
|August 8, 2023
PubMed
概括
此摘要是机器生成的。

这项研究引入了ACE2-RGF,这是一种新的放射基因组学方法,使用CT成像特征来评估血管激素转化酶2 (ACE2) 的表达. ACE2-RGF有助于COVID-19的诊断和严重疾病的识别.

关键词:
在ACE2中,ACE2是ACE2.在 COVID-19 疫情中,放射基因组学是指放射基因组学.无线电学 (Radiomics) 是一种辐射学.

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科学领域:

  • 放射学 放射学是一门学科.
  • 基因组学就是基因组学.
  • 人工智能的人工智能

背景情况:

  • 冠状病毒疾病2019 (COVID-19) 病原发生涉及血管素转化酶2 (ACE2) 的表达.
  • 对ACE2的基因表达概况是侵入性的和昂贵的.
  • 医学成像,就像CT一样,为评估异常提供了一个非侵入性的替代方案.

研究的目的:

  • 开发一个放射基因组学框架 (ACE2-RGF) 来推导与ACE2表达相关的成像特征.
  • 在COVID-19患者中利用ACE2-RGF作为ACE2表达的替代生物标志物.
  • 评估ACE2-RGF在分类COVID-19和识别严重疾病方面的表现.

主要方法:

  • 使用来自肺腺癌 (LUAD) 患者的ACE2表达数据开发了一个放射基因组学框架.
  • 使用ElasticNet和LASSO识别了与ACE2表达相关的图像特征.
  • 来自ACE2-RGF的ACE2-RGF被测试了其分类COVID-19和预测严重疾病的能力.

主要成果:

  • 与传统方法相比,ACE2-RGF发现了与传统方法相比独特的图像特征.
  • 在将COVID-19从正常受试者中分类时,ACE2-RGF实现了0.92的AUC.
  • 在确定患有严重疾病的患者时,ACE2-RGF显示AUC为0.85.

结论:

  • ACE2-RGF作为ACE2表达的可行的替代生物标志物.
  • 这种放射基因组学方法为自动化COVID-19分析提供了潜力.
  • 这些发现支持进一步研究基于成像的传染病生物标志物.