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Related Concept Videos

Echo01:06

Echo

The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...
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...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...

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Related Experiment Video

Updated: May 28, 2026

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
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Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography

Published on: January 27, 2023

Contrast echo: really safe after all?

C Aggeli1, L G Raftopoulos, C Kazazaki

  • 1Department of Cardiology, University of Athens, Athens, Greece.

Minerva Cardioangiologica
|October 11, 2011
PubMed
Summary
This summary is machine-generated.

Contrast echocardiography offers superior cardiovascular imaging but faced safety concerns. Extensive clinical trials demonstrate its excellent safety profile, leading regulatory bodies to reinstate its use in various patient settings.

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Area of Science:

  • Cardiovascular Imaging
  • Medical Technology
  • Diagnostic Tools

Background:

  • Echocardiography is vital for patient management, offering diagnostic and prognostic insights.
  • Contrast echocardiography represents a significant advancement, enhancing image quality and expanding clinical applications.
  • Initial safety concerns arose from animal studies suggesting risks like inertial cavitation.

Purpose of the Study:

  • To evaluate the safety and efficacy of contrast agents in echocardiography.
  • To address regulatory concerns and clinical trial data regarding contrast echocardiography.
  • To provide an updated perspective on the role of contrast echocardiography in clinical practice.

Main Methods:

  • Review of experimental studies and post-market surveillance data.
  • Analysis of multiple large-scale clinical trials across diverse patient populations.
  • Examination of regulatory agency statements (EMEA, FDA) and professional consensus (ASE).

Main Results:

  • Early concerns linked contrast agents to adverse events, prompting regulatory warnings.
  • Numerous clinical trials have established an excellent safety profile for contrast echocardiography.
  • Efficacy has been demonstrated in critical care and stress echocardiography settings.

Conclusions:

  • Despite initial safety concerns, contrast echocardiography has proven safe and effective.
  • Regulatory bodies have revised their stances, recommending broader use of contrast agents.
  • Contrast echocardiography is now widely accepted, with expanded applications supported by expert consensus.