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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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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.
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Related Experiment Video

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Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
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Analysis of mandibular structure using 3D facial computed tomography.

Su Young Jung1, Seung Youp Shin1, Kun Hee Lee1

  • 1Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|August 15, 2014
PubMed
Summary

The genial tubercle (GT) and mental foramen (MF) exhibit significant individual variations in position and dimension. These anatomical landmarks differ between genders and skeletal types, impacting mandibular structures.

Keywords:
3D facial CTgenial tuberclemandiblemental foramensurgery

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Area of Science:

  • Anatomy
  • Anthropology
  • Radiology

Background:

  • The genial tubercle (GT) and mental foramen (MF) are crucial anatomical landmarks in the mandible.
  • Understanding their precise location and dimensions is vital for various surgical and orthodontic procedures.
  • Individual variations in these structures can influence treatment outcomes.

Purpose of the Study:

  • To measure and analyze the position and dimensions of the genial tubercle (GT) and mental foramen (MF).
  • To investigate potential differences in these anatomical features based on gender and skeletal classification.

Main Methods:

  • Retrospective chart review of 210 subjects who underwent 3D facial computed tomography (CT).
  • Evaluation of seven key variables including GT height and width, and distances to the mandible and incisors.
  • Categorization of subjects into four groups based on gender and skeletal type (Class I and II).

Main Results:

  • Significant individual variations were observed in all measured parameters.
  • Class I males demonstrated greater GT height (GTH), mandibular thickness (MT), and superior border of GT to inferior border of mandible distance (SGT-IBM) compared to Class I females.
  • Class II males exhibited longer inferior border of GT to inferior border of mandible distance (IGT-IBM) and symphysis of mandible to MF distance (S-MF) than Class I females.

Conclusions:

  • Mandibular anatomical features, including the GT and MF, display considerable individual variability.
  • Specific measurements such as GTH, IGT-IBM, MT, S-MF, and SGT-IBM show statistically significant differences across gender and skeletal groups.
  • These findings underscore the importance of considering individual anatomical variations in clinical practice.