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Related Concept Videos

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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...
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...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...

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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

Computerized tomography used as a routine procedure at postmortem investigations.

Peter Mygind Leth1

  • 1Department of Forensic Pathology, Institute of Forensic Medicine, University of Southern Denmark, Odense, Denmark. pleth@health.sdu.dk

The American Journal of Forensic Medicine and Pathology
|August 22, 2009
PubMed
Summary

Computerized tomography (CT) scanning is a valuable supplement to autopsy, improving the identification of causes of death, especially in trauma cases. While autopsy remains definitive, CT offers unique insights and digital documentation benefits.

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Area of Science:

  • Forensic Pathology
  • Medical Imaging
  • Legal Medicine

Background:

  • Autopsy is the gold standard for determining cause of death.
  • Limitations exist in traditional autopsy, particularly in visualizing certain injuries or conditions 'in situ'.
  • Computerized Tomography (CT) offers non-invasive imaging capabilities.

Purpose of the Study:

  • To prospectively evaluate the utility of CT scanning as a supplement to autopsy.
  • To compare the diagnostic yield of CT scanning versus autopsy in deceased individuals.
  • To assess the cost-effectiveness and practical benefits of CT in forensic investigations.

Main Methods:

  • Prospective study of 250 consecutive deceased individuals.
  • All individuals underwent both CT scanning and autopsy.
  • Comparison of findings between CT scans and autopsy reports, and correlation with cause of death.

Main Results:

  • Significant discrepancies noted: 13% of important CT findings missed at autopsy, 48% of important autopsy findings missed by CT.
  • CT established cause of death in 31% of cases, autopsy in 74%, and toxicology in 22%.
  • CT combined with inquest data improved cause of death determination in trauma but not disease or poisoning.

Conclusions:

  • CT scanning is a cost-effective, quick, and valuable supplement to routine autopsy.
  • CT is particularly useful for identifications, gunshot lesions, traffic accidents, and visualizing 'in situ' anatomy.
  • Digital documentation from CT offers advantages for storage, review, and court presentation.