Small bowel MRI enteroclysis or follow through: which is optimal?

Area of Science:

• Radiology
• Gastroenterology
• Medical Imaging

Background:

• Small bowel imaging is crucial for diagnosing various gastrointestinal conditions.
• Traditional enteroclysis often requires nasojejunal intubation and specific patient positioning.
• Evaluating alternative, less invasive imaging techniques is essential.

Purpose of the Study:

• To assess the necessity of nasojejunal tubes (NJTs) for optimal enteroclysis.
• To determine if small bowel magnetic resonance imaging (MRI) can be performed solely in the supine position.
• To compare the efficacy of MR enteroclysis (MRE) and MR follow-through (MRFT) for small bowel visualization.

Main Methods:

• Retrospective analysis of 114 small bowel MRI examinations over 32 months.
• Patients underwent either MRFT or MRE exclusively in the supine position.
• Radiologists assessed proximal and distal small bowel distension, motion artifact, and overall image quality.

Main Results:

• All 108 patients were successfully imaged in the supine position, negating the need for NJT.
• Distal small bowel distension was adequate in both MRE (95.4%) and MRFT (97.8%).
• Proximal small bowel distension was significantly better with MRE (P=0.0036), especially in patients over 50.

Conclusions:

• Nasojejunal intubation is not required for effective small bowel MRI.
• Both MRE and MRFT provide comparable results for distal small bowel distension and image artifact.
• MRE is the preferred MR technique for small bowel imaging due to superior proximal distension.