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Related Concept Videos

Acute Pharyngitis01:30

Acute Pharyngitis

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Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
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Acute Pancreatitis I: Introduction01:27

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Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
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Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

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Acute respiratory failure is a condition characterized by the inability of the lungs to perform their primary function: gas exchange. This failure leads to insufficient oxygen levels (hypoxemia) in the blood, elevated carbon dioxide levels (hypercapnia), or both, causing critical impairment in organ function.
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
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Acute Respiratory Failure-II01:21

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
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Acute Respiratory Failure-V01:29

Acute Respiratory Failure-V

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The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...
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Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

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Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
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Acute Myocardial Infarction in Rats
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Acute Myocardial Infarct.

Alastair Moore1, Harold Goerne2, Prabhakar Rajiah1

  • 1Department of Radiology, Cardiothoracic Imaging, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8896, USA.

Radiologic Clinics of North America
|November 21, 2018
PubMed
Summary
This summary is machine-generated.

This review covers how acute myocardial infarction (MI) appears on computed tomography (CT) scans. It details imaging findings, pathophysiology, clinical presentation, and advanced CT techniques for diagnosing MI.

Keywords:
Acute MIAcute MI on CTAcute MI on cardiac CTCardiac CTComplications of acute MIDual-energy CT

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Last Updated: Feb 2, 2026

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Area of Science:

  • Radiology
  • Cardiology
  • Medical Imaging

Background:

  • Acute myocardial infarction (MI) is a critical cardiovascular event.
  • Understanding its imaging manifestations is crucial for timely diagnosis and management.
  • Computed tomography (CT) offers valuable insights into cardiac pathology.

Purpose of the Study:

  • To review the imaging manifestations of acute myocardial infarction (MI) using computed tomography (CT).
  • To illustrate the appearance of acute MI and its complications on various CT protocols.
  • To introduce recent advancements in cardiac CT imaging for MI detection.

Main Methods:

  • Review of existing literature on cardiac CT and myocardial infarction.
  • Presentation of case examples with detailed illustrations of MI on CT.
  • Synopsis of cardiac CT technical aspects and pathophysiology of MI.
  • Introduction to advanced techniques like dual-energy CT.

Main Results:

  • CT demonstrates characteristic imaging findings of acute MI.
  • Complications of MI, such as ventricular remodeling and thrombus formation, are visualized.
  • Dual-energy CT shows potential for enhanced tissue characterization in MI.

Conclusions:

  • Computed tomography is a versatile tool for evaluating acute myocardial infarction.
  • Familiarity with CT imaging patterns aids in diagnosing MI and its sequelae.
  • Emerging CT technologies promise improved diagnostic accuracy for cardiac conditions.