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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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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...
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Imaging Studies III: Computed Tomography01:27

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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...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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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Imaging Studies for Cardiovascular System V: CT01:28

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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...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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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...
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Related Experiment Video

Updated: Dec 30, 2025

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
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Research Progress on Postmortem Changes of Computed Tomography Imaging Characteristics on Corpses.

H W Dong1, Y Sun2, H Qian3

  • 1Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.

Fa Yi Xue Za Zhi
|January 24, 2020
PubMed
Summary

Computed tomography (CT) imaging reveals postmortem changes that can mimic injuries or diseases on corpses. Understanding these changes is crucial for accurate forensic pathology identification and virtopsy applications.

Keywords:
forensic pathology; postmortem changes; computed tomography; virtual autopsy; review

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Area of Science:

  • Forensic Radiology
  • Postmortem Imaging
  • Medical Imaging

Background:

  • Postmortem changes begin immediately after death.
  • These changes alter the body's structure and imaging characteristics.
  • Computed tomography (CT) imaging can be affected by postmortem changes, leading to potential misinterpretations.

Purpose of the Study:

  • To systematically summarize CT imaging characteristics of postmortem changes.
  • To enhance the application of virtopsy in forensic pathology.
  • To provide a reference for identifying injuries, diseases, and normal postmortem changes.

Main Methods:

  • Systematic review of literature on postmortem CT imaging.
  • Analysis of characteristic changes observed in CT scans of deceased individuals.
  • Correlation of imaging findings with known postmortem processes.

Main Results:

  • Postmortem changes present distinct patterns on CT scans.
  • These changes can lead to false positives and false negatives in injury and disease identification.
  • Specific CT findings are associated with different stages of decomposition and postmortem intervals.

Conclusions:

  • Accurate interpretation of postmortem CT requires understanding of postmortem changes.
  • Virtopsy, utilizing CT imaging, can be a valuable tool in forensic investigations.
  • This systematic summary aids forensic pathologists in differentiating postmortem changes from antemortem pathology.