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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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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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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.
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Positron Emission Tomography01:29

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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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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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Electron Microscope Tomography and Single-particle Reconstruction01:07

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
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Cone beam computed tomography - know its secrets.

Mohan Kumar1, Muhammad Shanavas2, Ashwin Sidappa3

  • 1Professor & Head, Department of Prosthodontics, Mahe Institute of Dental Sciences, Mahe, Pondicherry, India.

Journal of International Oral Health : JIOH
|April 11, 2015
PubMed
Summary
This summary is machine-generated.

Cone-beam computed tomography (CBCT) offers advanced 3D dental imaging with significantly lower radiation than conventional CT scans. This technique is highly accurate for maxillofacial and dental diagnostics.

Keywords:
Cone-beam computed tomographyX-raydiagnostic imagingspiral computed tomography

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Area of Science:

  • Dentistry
  • Radiology
  • Medical Imaging

Background:

  • Cone-beam computed tomography (CBCT) is an advanced imaging modality with significant clinical applications in dentistry.
  • CBCT has emerged as a successful investigative tool for dental and maxillofacial imaging.
  • Compared to conventional CT scans, CBCT delivers approximately 10 times less radiation dose during maxillofacial exposure.

Purpose of the Study:

  • To describe the basic technique of CBCT.
  • To differentiate CBCT from conventional CT scans.
  • To outline the main clinical applications of CBCT in dentistry.

Main Methods:

  • Review of CBCT technology and its principles.
  • Comparative analysis of CBCT and conventional CT imaging characteristics.
  • Compilation of established clinical uses of CBCT in dental and maxillofacial fields.

Main Results:

  • CBCT provides highly accurate three-dimensional volumetric data.
  • Image data can be reconstructed in axial, sagittal, and coronal planes.
  • CBCT offers a reduced radiation exposure compared to conventional CT.

Conclusions:

  • CBCT is a valuable and accurate imaging modality for dental and maxillofacial applications.
  • Its lower radiation dose makes it a preferable choice for certain diagnostic procedures.
  • Understanding CBCT's technique and applications is crucial for modern dentistry.