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Contrast medium protocols in routine chest CT: a survey study.
Mette Karen Henning1,2, Trond Mogens Aaløkken2,3, Safora Johansen1,4
1Faculty of Health Sciences, Department of Life Sciences and Health, Oslo Metropolitan University, Oslo, Norway.
Acta Radiologica (Stockholm, Sweden : 1987)
|March 2, 2021
Summary
Chest CT contrast medium (CM) administration varies widely, impacting image quality. Further research and consensus guidelines are needed for optimal chest CT protocols.
Area of Science:
- Radiology
- Medical Imaging
- Thoracic Imaging
Background:
- Contrast medium (CM) administration is crucial for computed tomography (CT) image quality in chest imaging.
- Current guidelines and evidence for optimal CM strategies in chest CT are lacking.
- A consensus approach is necessary to standardize CM administration in chest CT.
Purpose of the Study:
- To investigate the impact of varying chest CT protocols on contrast medium administration.
- To survey current practices and strategies for CM administration in chest CT.
Main Methods:
- An online survey was distributed to European Society of Thoracic Imaging (ESTI) members.
- CT protocols were collected from hospitals in Norway, Sweden, and Denmark.
- The survey focused on factors influencing CM protocols and enhancement in chest CT.
Main Results:
- A 24% response rate (170 participants) was achieved.
- Most respondents (76%) used CM concentration ≥350 mgI/mL.
- Fixed strategies for CM volume (52%), injection rate (73%), and delay (57%) were common, with delays typically 20-90s. Flexible tube potential (kV) was used by 56%.
Conclusions:
- Significant variability exists in chest CT protocols and CM administration strategies.
- These variations impact overall image quality.
- The study highlights the need for further research and consensus guidelines for chest CT CM administration.
Keywords:
Computed tomography protocolX-ray computed tomographychestcontrast mediasurveys and questionnairesMore Related Videos
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