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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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Computed Tomography

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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
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Anatomy of the Ear

Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...

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Extracting the Cochlea from a Human Temporal Bone: A Cadaveric Protocol
06:42

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Published on: August 18, 2023

[Computed tomography of the normal and pathologic temporal bone].

J-M Prades1, M Elmaleh-Berges, S Chatard

  • 1Laboratoire d'anatomie, service d'ORL et de chirurgie cervico-faciale, faculté de médecine J.-Lisfranc, hôpital Nord, CHU de Saint-Étienne, 42270 Saint-Priest-en-Jarez, France. jean.michel.prades@univ-st-etienne.fr

Morphologie : Bulletin De L'Association Des Anatomistes
|November 15, 2011
PubMed
Summary
This summary is machine-generated.

High-resolution computed tomography (CT) scanning aids in visualizing temporal bone microanatomy for diagnosing congenital malformations, especially in children with hearing loss. Standardized imaging planes improve detection of these abnormalities.

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Area of Science:

  • Radiology
  • Otolaryngology
  • Pediatric Imaging

Background:

  • High-resolution computed tomography (CT) scanning is crucial for evaluating temporal bone microanatomy.
  • CT effectively detects pathologies like congenital malformations, particularly in pediatric sensorineural hearing loss.
  • Certain external, middle, and inner ear structures remain challenging to assess comprehensively.

Purpose of the Study:

  • To establish standardized coronal, axial, and oblique planes for normal temporal bone evaluation using CT.
  • To enhance the visualization and identification of congenital temporal bone malformations.
  • To reduce misinterpretation of subtle dysplasias and normal microanatomic variations in newborns.

Main Methods:

  • Utilized high-resolution computed tomography (CT) scanning.
  • Defined five key coronal planes and three key axial planes.
  • Incorporated two oblique plane reconstructions for comprehensive temporal bone assessment.

Main Results:

  • Standardized planes were identified for evaluating normal temporal bone microanatomy.
  • These planes improve the visualization of major congenital malformations.
  • The approach aids in differentiating between severe malformations and subtle dysplasias.

Conclusions:

  • Standardized CT imaging planes enhance the detection of congenital temporal bone malformations.
  • Accurate identification of microanatomic structures is vital for diagnosing hearing loss in children.
  • This method assists in avoiding misdiagnosis of congenital ear anomalies.