Erschienen in:
25.01.2020 | Hollow Organ GI
Computed tomography and magnetic resonance enterography protocols and techniques: survey of the Society of Abdominal Radiology Crohn’s Disease Disease-Focused Panel
verfasst von:
Namita S. Gandhi, Jonathan R. Dillman, David J. Grand, Chenchan Huang, Joel G. Fletcher, Mahmoud M. Al-Hawary, Sudha A. Anupindi, Mark E. Baker, David H. Bruining, Manjil Chatterji, Jeff L. Fidler, Michael S. Gee, Joseph R. Grajo, Flavius F. Guglielmo, Tracy A. Jaffe, Seong Ho Park, Jordi Rimola, Bachir Taouli, Stuart A. Taylor, Benjamin Yeh
Erschienen in:
Abdominal Radiology
|
Ausgabe 4/2020
Einloggen, um Zugang zu erhalten
Abstract
Purpose
To survey Society of Abdominal Radiology Crohn’s Disease (CD) Disease-Focused Panel (DFP) members to understand state-of-the-art CT/MR enterography (CTE/MRE) protocols and variability between institutions.
Methods
This study was determined by an institutional review board to be “exempt” research. The survey consisted of 70 questions about CTE/MRE patient preparation, administration of contrast materials, imaging techniques, and other protocol details. The survey was administered to DFP members using SurveyMonkey® (Surveymonkey.com). Descriptive statistical analyses were performed.
Results
Responses were received from 16 DFP institutions (3 non-USA, 2 pediatric); 15 (94%) were academic/university-based. 10 (63%) Institutions image most CD patients with MRE; 4 (25%) use CTE and MRE equally. Hypoperistaltic medication is given for MRE at 13 (81%) institutions versus only 2 (13%) institutions for CTE. Most institutions have a technologist or nurse monitor oral contrast material drinking (n = 12 for CTE, 75%; n = 11 for MRE, 69%). 2 (13%) institutions use only dual-energy capable scanners for CTE, while 9 (56%) use either a single-energy or dual-energy scanner based on availability. Axial CTE images are reconstructed at 2–3 mm thickness at 8 (50%) institutions, > 3 mm at 5 (31%), and < 2 mm at 3 (19%) institutions. 13 (81%) institutions perform MRE on either 1.5 or 3T scanners without preference. All institutions perform MRE multiphase postcontrast imaging (median = 4 phases), ranging from 20 to 600 s after contrast material injection.
Conclusion
CTE and MRE protocol knowledge from DFP institutions can help radiology practices optimize/standardize protocols, potentially improving image quality and patient outcomes, permitting objective comparisons between examinations, and facilitating research.