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Pleural Effusion I: Introduction01:25

Pleural Effusion I: Introduction

3.8K
Pleural effusion is an abnormal fluid accumulation in the pleural cavity, a narrow space between the lungs and the chest wall. It is not a disease per se but rather a symptom or indication of an underlying disease. In normal circumstances, this space contains a small amount of fluid (5 to 15 mL), a lubricant facilitating the non-frictional movement of the pleural surfaces.
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's...
3.8K
Pleural Effusion II: Symptoms and Management01:28

Pleural Effusion II: Symptoms and Management

604
Pleural Effusion Overview
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
604
Respiratory System Abnormal Finding II: Palpation and Auscultation01:31

Respiratory System Abnormal Finding II: Palpation and Auscultation

1.3K
In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
1.3K
Physical Assessment of the Respiratory Tract II: Palpation01:24

Physical Assessment of the Respiratory Tract II: Palpation

1.6K
Physical assessment of the respiratory tract is critical in identifying potential health issues. One key component of this assessment is palpation, a technique healthcare providers use to assess the body for abnormalities. This content explores the method of palpation in evaluating the respiratory tract, focusing on thoracic palpation and tactile fremitus.
Thoracic Palpation
Thoracic palpation detects tenderness, masses, lesions, respiratory excursions, and vocal fremitus. The nurse assesses...
1.6K
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

602
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...
602

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Updated: Jan 8, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
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Point-of-Care Lung Ultrasound in Adults: Image Acquisition

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胸水の液性エコー源性を用いた漏出性から滲出性胸水の鑑別に関する定量的評価

Alaa A El-Dakkak1, Mona El-Hoshy1, Maged Hassan1

  • 1Pulmonology Department, Faculty of Medicine, Alexandria University, Alexandria, EGY.

Cureus
|December 22, 2025
PubMed
まとめ

新規の胸水相対エコー源性（PFRE）指数は、胸部超音波検査を用いて、漏出性胸水と滲出性胸水の鑑別に有用である。この非侵襲的診断法は、胸水のタイプを鑑別する上で中程度の精度を示す。

科学分野:

  • 医用画像処理
  • 診断用超音波検査
  • 肺病学

背景:

  • 胸部超音波検査（TUS）は、胸部X線撮影よりも胸水を特定する感度が高い。
  • 漏出液と滲出液の鑑別は、患者管理において極めて重要である。
  • 現在の方法は、侵襲的な手技または感度の低い画像診断技術に依存している。

研究 の 目的:

  • 新規の胸水相対エコー源性（PFRE）指数を用いて、滲出液と漏出液を非侵襲的に鑑別する有効性を評価すること。
  • 胸部超音波検査（TUS）を用いた胸水の定量的エコー源性評価を検討すること。
  • PFREと生化学的マーカーおよびLightの基準を比較すること。

主な方法:

  • 140名の胸水患者を募集した。
  • TUS画像は、新規指数（PFRE）を用いてエコー源性を定量化するために分析され、胸水を肝臓のエコー源性と比較した。
  • PFREのLightの基準に対する予測能力を評価した。

主要な成果:

  • PFREは漏出液（中央値0.26）と滲出液（中央値0.55）の間で有意差が認められた（p<0.001）。
  • PFREは、胸水タンパク質濃度と正の相関、胸水グルコース濃度と負の相関を示した。
キーワード:
エコー源性滲出液胸水胸部超音波検査漏出液

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A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica
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A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica

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The Application of Point-of-Care Ultrasonography (POCUS) in the Management of Acute Respiratory Distress Syndrome (ARDS) in the Intensive Care Unit
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The Application of Point-of-Care Ultrasonography (POCUS) in the Management of Acute Respiratory Distress Syndrome (ARDS) in the Intensive Care Unit

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関連する実験動画

Last Updated: Jan 8, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
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Point-of-Care Lung Ultrasound in Adults: Image Acquisition

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A Pleural Effusion Model in Rats by Intratracheal Instillation of Polyacrylate/Nanosilica
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The Application of Point-of-Care Ultrasonography (POCUS) in the Management of Acute Respiratory Distress Syndrome (ARDS) in the Intensive Care Unit
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  • PFREの曲線下面積（AUC）は0.77であり、カットオフ値≤0.236は、漏出性胸水に対して47.73%の感度と90.62%の特異度を示した。

    • 結論:

    • 胸水相対エコー源性（PFRE）は、漏出性胸水と滲出性胸水を鑑別するための非侵襲的な方法を提供する。
    • TUSベースのPFRE指数は、胸水のタイプを鑑別する上で中程度の精度を示す。
    • この定量的アプローチは、胸水の臨床的意思決定に役立つ可能性がある。