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X-ray Imaging01:24

X-ray Imaging

German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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 I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

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Related Experiment Video

Updated: Jun 20, 2026

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
12:32

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

Published on: September 27, 2020

Diagnostic contrast radiography in fish.

David Eshar1, La'Toya Latney, Nicole R Wyre

  • 1Department of Clinical Studies, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA, USA. dreshard@gmail.com

Lab Animal
|September 24, 2009
PubMed
Summary
This summary is machine-generated.

Contrast radiography is an accessible diagnostic tool for fish diseases, adaptable from techniques used in other animals. This method aids in identifying fish health issues, despite limited specialized diagnostic options.

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Area of Science:

  • Veterinary Radiology
  • Aquatic Animal Medicine
  • Comparative Diagnostic Imaging

Background:

  • Fish are crucial research models, yet specialized diagnostic techniques for their diseases remain limited.
  • Existing diagnostic tools for other animals can be adapted for fish with appropriate handling accommodations.
  • Contrast radiography offers a viable imaging modality for fish diagnostics.

Purpose of the Study:

  • To describe the indications for using contrast radiography in fish.
  • To outline the preparation procedures for contrast radiography in fish.
  • To detail the techniques involved in performing contrast radiography on fish.

Main Methods:

  • Adaptation of standard contrast radiography principles for piscine anatomy and physiology.
  • Discussion of necessary equipment and contrast agents suitable for fish.
  • Step-by-step procedural guide for contrast radiography in fish, including handling and restraint.

Main Results:

  • Contrast radiography can effectively visualize internal structures and abnormalities in fish.
  • The procedure is feasible with modifications to standard veterinary radiography techniques.
  • Provides valuable diagnostic information for a range of fish conditions.

Conclusions:

  • Contrast radiography is a practical and underutilized diagnostic technique for fish.
  • Veterinary professionals can implement this method to improve fish disease diagnosis.
  • Further application of contrast radiography will enhance the understanding and management of fish health.