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Related Experiment Videos

Reducing motion artifacts during hepatic DSA

T Katsuda1, T Nakajima, M Fujita

  • 1Radiological Technology Section, Center for Adult Disease in Osaka, Japan.

Radiologic Technology
|March 1, 1994
PubMed
Summary
This summary is machine-generated.

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Diaphragmatic motion artifacts in hepatic digital subtraction angiography (DSA) can hinder lesion diagnosis. Exhaling and holding breath during hepatic DSA significantly reduces these artifacts, improving image quality compared to inhaling and holding.

Area of Science:

  • Medical Imaging
  • Radiology
  • Hepatobiliary Imaging

Background:

  • Diaphragmatic motion during hepatic digital subtraction angiography (DSA) can cause artifacts.
  • These artifacts may impede accurate diagnosis of hepatic lesions.

Purpose of the Study:

  • To evaluate the feasibility of the exhalation holding method for reducing diaphragmatic motion artifacts in hepatic DSA.
  • To compare the effectiveness of exhalation holding versus inhalation holding techniques.

Main Methods:

  • Thirty patients undergoing hepatic DSA were included.
  • Two respiratory holding methods (exhalation hold and inhalation hold) were compared.
  • A blinded assessment of diaphragmatic motion artifacts was performed on the acquired images.

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Main Results:

  • The exhalation holding method yielded superior images in 20 out of 30 cases (66.7%).
  • This technique demonstrated a significant reduction in diaphragmatic motion artifacts compared to inhalation holding.

Conclusions:

  • The exhalation holding method is a feasible and effective technique for minimizing diaphragmatic motion artifacts in hepatic DSA.
  • Implementing this method can improve diagnostic accuracy for hepatic lesions.