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相关概念视频

Aneurysm I: Introduction01:30

Aneurysm I: Introduction

28
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
28
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

25
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
25
Aneurysm IV: Nursing Management01:22

Aneurysm IV: Nursing Management

22
Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
22
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

29
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
29

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Updated: Sep 15, 2025

Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches
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使用深度学习进行动脉瘤分析.

Alireza Bagheri Rajeoni1, Breanna Pederson2, Susan M Lessner3

  • 1Department of Computer Science and Engineering, University of South Carolina, Columbia, SC 29201, USA.

medRxiv : the preprint server for health sciences
|July 16, 2025
PubMed
概括
此摘要是机器生成的。

本研究引入了一种使用人工智能精确测量动脉瘤体积的自动化方法. 该方法准确计算动脉瘤体积,改善患者的风险评估和治疗规划.

关键词:
动脉动脉瘤是一个动脉瘤.动脉瘤边界检测检测动脉瘤体积测量 动脉瘤体积测量计算机断层扫描,血管图.深度学习是一种深度学习.图像分割 图像细分 图像细分血管系统的细分 血管系统的细分

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Measurement of Pulse Propagation Velocity, Distensibility and Strain in an Abdominal Aortic Aneurysm Mouse Model
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Measurement of Pulse Propagation Velocity, Distensibility and Strain in an Abdominal Aortic Aneurysm Mouse Model
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科学领域:

  • 医学成像分析 医学成像分析
  • 计算生物学 计算生物学
  • 人工智能在医学中的应用

背景情况:

  • 目前对动脉瘤的临床评估依赖于手动直径测量,这是耗时的,缺乏详细的形态洞察力.
  • 动脉瘤体积测量提供了比单独的直径更好的了解疾病进展和严重程度.
  • 现有的方法缺乏有效的自动化解决方案来量化动脉瘤体积.

研究的目的:

  • 开发和验证一种自动化的方法,用于精确的动脉瘤边界划定和体积计算.
  • 在未注释的临床数据集上评估新型人工智能驱动方法的性能.
  • 在动脉瘤评估中减少依赖手动细分和观察者之间的变异性.

主要方法:

  • 使用预先训练的UNet进行自动大动脉定位.
  • 采用SAM2来通过复杂的血管结构追踪大动脉,包括动脉瘤.
  • 应用长短期记忆 (LSTM) 网络或专家系统来识别动脉瘤开始和结束点.
  • 在60名患者的数据集上计算了动脉瘤体积,没有像素智能的大动脉细分.

主要成果:

  • 在预测动脉瘤开始 (R2=71%) 和结束点 (R2=76%) 方面取得了高准确性.
  • 在动脉瘤体积预测方面表现出色,R2得分为92%.
  • 在没有注释的数据集上验证了该方法的有效性,突出了其实际适用性.

结论:

  • 拟议的自动化方法为动脉瘤体积测量提供了精确有效的解决方案.
  • 这种人工智能驱动的技术有可能显著提高大规模动脉瘤分析.
  • 这种方法有望通过提供可靠的体积数据和减少手工劳动来改善临床决策.