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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
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...

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Related Experiment Video

Updated: May 29, 2026

X-ray Diffraction of Intact Murine Skeletal Muscle as a Tool for Studying the Structural Basis of Muscle Disease
08:26

X-ray Diffraction of Intact Murine Skeletal Muscle as a Tool for Studying the Structural Basis of Muscle Disease

Published on: July 18, 2019

Musculoskeletal imaging with a prototype photon-counting detector.

M Gruber1, P Homolka, M Chmeissani

  • 1Department of Radiology, Medical University of Vienna, Waehringer Guertel 18-20, AT-1090 Vienna, Austria. michael.gruber@meduniwien.ac.at

European Radiology
|August 30, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces a new photon-counting digital X-ray detector for musculoskeletal imaging. The novel system demonstrates superior image quality at low radiation doses compared to conventional detectors.

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A Novel Application of Musculoskeletal Ultrasound Imaging
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Published on: September 17, 2013

Area of Science:

  • Medical Imaging
  • Digital Radiology
  • Photon Counting Detectors

Background:

  • Digital radiography (DR) systems are widely used for medical imaging.
  • Direct X-ray photon capture with pixel detectors and photon-counting electronics offers potential for improved imaging performance.
  • Evaluating novel detector technologies is crucial for advancing diagnostic imaging.

Purpose of the Study:

  • To evaluate a novel digital X-ray imaging device utilizing direct X-ray photon capture with pixel detectors and photon-counting readout electronics.
  • To compare the performance of this new system against a conventional flat-panel detector for musculoskeletal imaging.

Main Methods:

  • A photon-counting detector chip with a 256x256 pixel matrix (55 μm pixel pitch) was employed.
  • Monolithic images were acquired using a consecutive displacement approach.
  • Human hand specimens were imaged at four dose levels (2.4, 6, 12, 25 μGy) and compared with a flat-panel detector.

Main Results:

  • The photon-counting system achieved higher image quality scores at lower dose levels (2.4 and 6 μGy) compared to the flat-panel detector.
  • At higher dose levels (12 and 25 μGy), no significant performance difference was observed between the systems.
  • Image quality ratings for the photon-counting system increased with dose, from 5.23 to 6.99.

Conclusions:

  • The photon-counting detector shows significant potential for high-quality musculoskeletal imaging at reduced radiation doses.
  • This technology may offer advantages in dose-sensitive imaging applications.
  • Further research can explore its clinical utility in various anatomical regions.