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相关概念视频

Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...

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相关实验视频

Updated: Jul 10, 2026

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats
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气球血管造形术对大腿动脉的影响,通过血管内超声波成像评估.

S H The1, E J Gussenhoven, Y Zhong

  • 1Thoraxcenter, Rotterdam, The Netherlands.

Circulation
|August 1, 1992
PubMed
概括
此摘要是机器生成的。

气球血管整形扩大了表面的股骨动脉,主要是通过拉伸动脉壁,而不是通过减少病变体积. 这种过度伸展往往会导致剖析和斑块破裂.

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Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting
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Quantifying Inferior Vena Cava Compliance and Distensibility in an In Vivo Ovine Model Using 3D Angiography
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Last Updated: Jul 10, 2026

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Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting
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科学领域:

  • 血管外科 血管外科
  • 干预心脏病学 干预心脏病学
  • 医疗成像医学成像

背景情况:

  • 表面大腿动脉 (SFA) 疾病往往需要干预.
  • 气球血管整形是SFA病变的常见治疗方法.
  • 评估血管整形手术的直接影响对于了解结果至关重要.

研究的目的:

  • 为了评估气球血管造形术对表面大腿动脉的直接影响.
  • 为了比较血管内超声波的发现与血管造影的结果.
  • 在血管造形术后对动脉变化进行定量和定性分析.

主要方法:

  • 血管内超声波 (IVUS) 在16名患者中使用.
  • 血管塑性手术前后的截面 (n=72) 被分析.
  • 定性和定量IVUS数据与血管学相关联.

主要成果:

  • IVUS证实了血管学发现和差异化的损伤类型 (软/硬,偏心/集中).
  • 血管形成术后,IVUS检测了剖析,斑块破裂和内膜破裂.
  • 观察到光膜面积和直径的显著增加,损伤面积的变化最小. 中部稀薄表示动脉壁延伸.

结论:

  • 亮面扩大主要是由于动脉壁过度拉伸.
  • 在气球血管造形术后,损伤体积基本保持不变.
  • 过度伸展经常与剖析和斑块破裂有关.