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Related Concept Videos

Brain Imaging01:14

Brain Imaging

225
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...
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Positron Emission Tomography01:29

Positron Emission Tomography

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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.
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...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

106
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
106

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Whole-body PET/MRI of Pediatric Patients: The Details That Matter
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Performance Characteristics of the NeuroEXPLORER, a Next-Generation Human Brain PET/CT Imager.

Hongdi Li1, Ramsey D Badawi2, Simon R Cherry2

  • 1United Imaging Healthcare North America, Houston, Texas.

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
|June 13, 2024
PubMed
Summary

The NeuroEXPLORER, a new human brain PET imager, offers high sensitivity and spatial resolution for advanced brain imaging. Its capabilities will expand clinical research applications in neurology and neuroscience.

Keywords:
DOINEMANeuroEXPLORERbrain PEThigh resolution

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Area of Science:

  • Medical Imaging
  • Nuclear Medicine
  • Neuroscience

Background:

  • Positron Emission Tomography (PET) is crucial for human brain research.
  • Existing PET imagers face limitations in resolution, sensitivity, and motion tracking.
  • Advancements are needed to improve the detail and accuracy of brain imaging studies.

Purpose of the Study:

  • To introduce the NeuroEXPLORER, a novel dedicated human brain PET imager.
  • To present its physical characterization and performance evaluation.
  • To demonstrate its capabilities with initial human imaging results.

Main Methods:

  • Adherence to National Electrical Manufacturers Association (NEMA) NU 2-2018 standards for measurements.
  • Evaluation of spatial resolution, sensitivity, count rate performance, and image quality.
  • Imaging of phantoms and initial 18F-FDG scans in a healthy volunteer.

Main Results:

  • Achieved average radial/tangential spatial resolutions of 1.64-2.51 mm and axial resolutions of 2.73-2.93 mm.
  • Demonstrated high sensitivity (46.0-47.6 kcps/MBq) and excellent time-of-flight resolution (236 ps).
  • Initial human brain 18F-FDG images showed high resolution, capturing detailed cortical and subcortical structures.

Conclusions:

  • NeuroEXPLORER provides high sensitivity and spatial resolution for brain PET imaging.
  • Its extended axial field-of-view supports spinal cord imaging and image-derived input functions.
  • The system's performance is expected to significantly broaden the scope of human brain PET research and clinical applications.