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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 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...

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Comparative dental radiographic identification using flat panel CT.

Christoph G Birngruber1, Martin Obert, Frank Ramsthaler

  • 1Department of Legal Medicine, University of Giessen, Giessen, Germany.

Forensic Science International
|May 20, 2011
PubMed
Summary
This summary is machine-generated.

Forensic identification of a missing person was achieved using advanced dental radiography techniques. High-resolution eXplore Locus Ultra flat panel CT (eLU-CT) enabled accurate comparison of postmortem and antemortem dental records.

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Area of Science:

  • Forensic Anthropology
  • Radiology
  • Odontology

Background:

  • Comparative dental radiography is crucial for identifying unknown human remains.
  • Challenges arise when antemortem radiographic data is limited or of poor quality.

Observation:

  • A skull lacking a lower jaw was presented for identification, suspected to be a man missing for five years.
  • Antemortem dental records were available but did not perfectly match the required angulation for direct comparison.
  • Initial attempts using multislice computed tomography (MSCT) generated virtual radiographs with artifacts and insufficient resolution.

Findings:

  • High-resolution eXplore Locus Ultra flat panel CT (eLU-CT) successfully generated virtual radiographs from the postmortem skull.
  • These eLU-CT derived radiographs, visualized with maximum intensity projection (MIP), allowed for accurate superimposition with antemortem dental films.
  • Positive identification was confirmed by matching dental features between antemortem and postmortem images.

Implications:

  • eLU-CT represents a novel and effective tool for forensic dental identification.
  • This technology overcomes limitations of traditional radiography and MSCT in challenging identification cases.
  • The successful application of eLU-CT enhances the capabilities of forensic science in establishing identity from skeletal remains.