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Related Experiment Videos

Scaphoid fractures: evaluation with high-spatial-resolution US initial results.

A M Herneth1, A Siegmeth, T R Bader

  • 1Department of Radiology, University of Vienna, Wahringer Gurtel 18-20, AKH-7F, A-1090 Vienna, Austria. andreas.herneth@univie.ac.at

Radiology
|June 27, 2001
PubMed
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High-spatial-resolution ultrasonography (US) accurately diagnoses scaphoid fractures, including occult fractures missed by conventional radiography. This imaging technique offers a reliable alternative to CT or MRI for wrist trauma evaluation.

Area of Science:

  • Radiology
  • Orthopedics
  • Medical Imaging

Background:

  • Scaphoid fractures are common after wrist trauma.
  • Conventional radiography often misses occult scaphoid fractures.
  • Advanced imaging may be needed for definitive diagnosis.

Purpose of the Study:

  • To assess the diagnostic accuracy of high-spatial-resolution ultrasonography (US) for scaphoid fractures.
  • To compare US performance against conventional radiography and MRI.

Main Methods:

  • 15 patients with suspected scaphoid fractures underwent clinical examination, conventional radiography, high-spatial-resolution US, and MRI.
  • Radiologists interpreting US were blinded to other diagnostic results.
  • US findings included cortical discontinuity and periosteal elevation.

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Main Results:

  • High-spatial-resolution US detected 78% of scaphoid fractures, compared to 56% for conventional radiography.
  • US identified 50% of radiographically occult fractures.
  • Overall diagnostic accuracy for US was 87%, versus 73% for radiography.

Conclusions:

  • High-spatial-resolution US is a reliable tool for diagnosing scaphoid fractures, especially occult ones.
  • US can serve as an effective alternative to CT or MRI in evaluating wrist trauma.
  • This modality improves early detection rates for subtle fractures.