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相关概念视频

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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相关实验视频

Updated: Sep 17, 2025

Three-dimensional Imaging of Nociceptive Intraepidermal Nerve Fibers in Human Skin Biopsies
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扩散周围神经病变的MR成像

Swati Deshmukh1, Mona Dabiri2, Shivani Ahlawat2

  • 1Department of Radiology, NYU Langone Health, New York University Grossman School of Medicine, 530 First Avenue, New York, NY 10016, USA.

Magnetic resonance imaging clinics of North America
|July 3, 2025
PubMed
概括

磁共振 (MR) 神经学有助于诊断和管理分散的外围神经病变. 像神经扩大和信号变化这样的成像发现可以表明各种原因,但必须排除瘤状况.

关键词:
在AIDPP的帮助下.在CIDP中,我们可以看到CIDP.查尔科特-玛丽-牙在这里,我们可以看到MR MR.神经图谱 神经图谱 神经图谱周围神经的神经.

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科学领域:

  • 神经学 神经学
  • 放射学 放射学是一门学科.
  • 医疗成像医学成像

背景情况:

  • 扩散性外围神经病变源于不同的病因,包括遗传性,炎症性,传染性和全身性疾病,如糖尿病.
  • 准确的诊断对于有效管理这些神经病变至关重要.

研究的目的:

  • 突出MR神经学在诊断和管理分散的外围神经病变中的作用.
  • 描述与这些条件相关的特征性MR成像发现.
  • 强调排除瘤原因的重要性.

主要方法:

  • 在患有扩散性外围神经病变的患者中对MR神经学发现的审查.
  • 图像特征与临床和病因学数据的相关性.
  • 强调特定的成像特征,如神经扩大和信号强度.

主要成果:

  • 核磁共振神经学揭示了诸如长段 (通常>6厘米) 神经扩大和信号超强度等特征性发现.
  • 这些发现可以单一或多焦点,这取决于潜在的原因.
  • 图像检测结果有助于区分扩散性神经病变的各种病因.

结论:

  • 核磁共振神经图是诊断和管理扩散性外围神经病变的宝贵工具.
  • 典型的成像发现可以表明潜在的原因,指导进一步的调查.
  • 在解释扩散异常神经时,应仔细考虑和排除新形成过程.