Standardized 3T MRI Protocol for Gastrointestinal Imaging

All examinations are performed on one of four 3.0 T MR scanners (GE Discovery 750HD, GE Healthcare; Siemens MAGNETOM Skyra (2 sets), Siemens AG; uMR 780, United Imaging Healthcare). All patients underwent pre-scan preparation as recommended by the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) and European Society of Pediatric Radiology (ESPR) [17 (link)]; that is, fasting for 4–6 h before the scan and drinking 1000–1500 mL of 2.5% aqueous mannitol solution regularly within 30–45 min before the scan. To minimize bowel peristalsis, 10 mg anisodamine was orally administered 30 min before the examination to patients without contraindications, including glaucoma and prostatic hypertrophy. Additionally, routine MRE sequences were consistent with those suggested by ESGAR/ESPR, as shown in the Additional file 1: Table S1.

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Zhou Z., Xiong Z., Shen Y., Li Z., Hu X, & Hu D. (2021). Magnetic resonance imaging-based body composition is associated with nutritional and inflammatory status: a longitudinal study in patients with Crohn's disease. Insights into Imaging, 12, 178.

Publication 2021

GE Discovery 750HD uMR 780

Abdominal radiology Anisodamine Bowel European Examinations Glaucoma Mannitol Patients Peristalsis Prostatic hypertrophy Radiology Scan

Corresponding Organization :

Other organizations : Huazhong University of Science and Technology, Tongji Hospital

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Variable analysis

independent variables

3.0 T MR scanners (GE Discovery 750HD, GE Healthcare; Siemens MAGNETOM Skyra (2 sets), Siemens AG; uMR 780, United Imaging Healthcare)

dependent variables

Measured outcomes

control variables

Pre-scan preparation: fasting for 4–6 h before the scan and drinking 1000–1500 mL of 2.5% aqueous mannitol solution regularly within 30–45 min before the scan
To minimize bowel peristalsis, 10 mg anisodamine was orally administered 30 min before the examination to patients without contraindications, including glaucoma and prostatic hypertrophy
Routine MRE sequences consistent with those suggested by ESGAR/ESPR

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