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Related Concept Videos

Positron Emission Tomography01:29

Positron Emission Tomography

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.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).

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Related Experiment Video

Updated: May 17, 2026

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
03:58

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion

Published on: January 17, 2025

Cochlear implants and positron emission tomography.

R Aggarwal1, K M J Green

  • 1Department of ENT, Central Manchester University Hospitals, UK. rohiniaggarwal@hotmail.com

The Journal of Laryngology and Otology
|October 17, 2012
PubMed
Summary
This summary is machine-generated.

Cochlear implants aid hearing loss, but outcomes vary. Positron emission tomography reveals brain changes, aiding understanding of speech processing for better rehabilitation.

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Last Updated: May 17, 2026

Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
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Published on: March 23, 2022

Area of Science:

  • Neuroscience
  • Audiology
  • Medical Imaging

Background:

  • Cochlear implants treat severe sensorineural hearing loss.
  • Outcomes are variable and unpredictable.
  • Speech processing mechanisms in implantees require further elucidation.

Purpose of the Study:

  • To review current knowledge on cochlear implants and neuroplasticity.
  • To explore the role of positron emission tomography in understanding these changes.

Main Methods:

  • Systematic review of functional neuroimaging studies.
  • Focus on positron emission tomography (PET) findings.
  • Analysis of cortical changes in cochlear implant recipients.

Main Results:

  • PET studies offer insights into brain reorganization post-implantation.
  • Neuroplasticity is evident in the auditory cortex.
  • Variability in outcomes may relate to individual neuroplastic responses.

Conclusions:

  • Understanding neuroplasticity mechanisms is crucial for improving cochlear implant outcomes.
  • Targeted rehabilitation strategies can be developed based on underlying speech processing mechanisms.
  • Further research using neuroimaging is warranted.