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Methods used for liver computed tomography scanning in community radiology practice
C L Sistrom1, S B Gay, C A Holder
1Department of Radiology, Medical University of South Carolina, Charleston 29425-0720.
Investigative Radiology
|December 1, 1993
Summary
Less than half of radiologists use dynamic enhanced computed tomography (CT) for liver imaging, despite its recognized benefits. Cost and convenience may influence technique selection over optimal diagnostic performance.
Area of Science:
- Radiology
- Medical Imaging
Background:
- Dynamic enhanced scanning is the preferred CT method for liver mass detection in imaging literature.
- A 1987 survey indicated only 36% of academic radiologists used this technique.
Purpose of the Study:
- To assess current trends in computed tomography (CT) liver imaging techniques among private practice radiologists.
- To compare current practices with historical data on dynamic enhanced CT utilization.
Main Methods:
- An 18-item questionnaire was distributed to 260 members of the American College of Radiology.
- Ninety-eight usable responses were collected and analyzed to determine CT technique preferences.
Main Results:
- Forty-six percent of surveyed radiologists currently employ dynamic enhanced CT for liver imaging.
- Thirty-three percent continue to use ionic contrast agents.
- Nonionic contrast agents were associated with significantly lower iodine doses.
Conclusions:
- Despite literature consensus, less than 50% of radiologists utilize dynamic enhanced CT for liver masses.
- Cost and convenience are speculated as primary factors influencing technique choice over diagnostic superiority.