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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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Updated: Jun 20, 2026

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
05:49

Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images

Published on: February 23, 2024

Is Cone-Beam CT Reliable for Apical Foramen Assessment? A Micro-CT-Referenced Study.

João Pedro de Lima1, Guilherme Nilson Alves Dos Santos1, Manoel Damião Sousa-Neto1

  • 1Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil.

Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc
|June 19, 2026
PubMed
Summary
This summary is machine-generated.

Cone-beam CT (CBCT) showed limited accuracy in identifying apical foramen number and trajectory deviation compared to micro-CT. Diagnostic performance was not significantly affected by CBCT dose protocols or root characteristics.

Keywords:
cone‐beam computed tomographydiagnostic imagingendodonticsradiological protection

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High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
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High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

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Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
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High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
08:57

High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

Published on: June 21, 2011

Area of Science:

  • Dentistry
  • Radiology
  • Endodontics

Background:

  • Accurate identification of apical foramen number and trajectory is crucial for successful endodontic treatment and implant placement.
  • Cone-beam computed tomography (CBCT) is a common imaging modality in dentistry, but its diagnostic accuracy for fine anatomical details needs evaluation.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of two cone-beam CT (CBCT) dose protocols for identifying the number and trajectory deviation of apical foramina.
  • To compare CBCT diagnostic performance against micro-CT as a gold standard.

Main Methods:

  • Forty lower molars were scanned using micro-CT.
  • Teeth were placed in mandible sockets with adjacent titanium implants and endodontically treated teeth.
  • CBCT scans were performed using two different dose protocols, and images were assessed for apical foramen characteristics.
  • Agreement with micro-CT was assessed using kappa statistics; accuracy, sensitivity, and specificity were calculated.

Main Results:

  • Kappa values indicated poor-to-acceptable agreement between CBCT and micro-CT for assessing apical foramina.
  • Neither the CBCT dose protocol, root type, nor the presence of high-density materials significantly influenced diagnostic performance.
  • CBCT demonstrated limited agreement with micro-CT in evaluating the number and trajectory deviation of apical foramina under ex vivo conditions.

Conclusions:

  • CBCT exhibits limited diagnostic accuracy for evaluating the number and trajectory deviation of apical foramina when compared to micro-CT.
  • Current CBCT protocols and imaging conditions do not significantly enhance diagnostic performance for these specific anatomical features.
  • Further advancements in CBCT technology or imaging protocols may be necessary to improve the assessment of apical foramen morphology.