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Published on: December 17, 2014
CO2 as a distending medium for gastric and small bowel MRI: a feasibility study
D J Lomas1, S H Habib, I J Joubert
1Department of Radiology, University of Cambridge and Addenbrooke's NHS Trust, Hills Road, Cambridge, CB2 2QQ, UK. djl15@radiol.cam.ac.uk
Abstract:
This work evaluates carbon dioxide as a contrast medium for magnetic resonance imaging of the stomach and small bowel. Twelve healthy volunteers underwent rapid magnetic resonance imaging after oral administration of a carbon dioxide generating agent using a combination of breath-hold and interactive fluoroscopic imaging during breathing. Diagnostic-quality images were obtained in 100% of cases for the stomach and in 92, 75, 67 and 42% of cases for the duodenal segments 1-4, respectively. Visualisation of the jejunum and ileum proved unacceptable for clinical use and anti-peristaltic agents did not significantly influence the results. Further development of fast imaging and magnetic resonance interactive fluoroscopic methods may allow the use of carbon dioxide as a contrast medium for clinical imaging of the stomach and duodenum.
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