Interactive neonatal gastrointestinal magnetic resonance imaging using fruit juice as an oral contrast media

Area of Science:

• Medical Imaging
• Gastroenterology
• Biophysics

Background:

• Evaluating fruit juice as an oral contrast agent for gastrointestinal visualization.
• Utilizing interactive inversion recovery (IR) MR pulse sequences.

Purpose of the Study:

• To assess the efficacy of fruit juice as an oral contrast agent for MR imaging of the GI tract.
• To identify suitable fruit juices based on their relaxation properties.
• To optimize MR pulse sequences for enhanced visualization.

Main Methods:

• Investigated relaxation properties (T1 and T2) of 12 natural fruit juices in vitro.
• Administered pineapple juice orally to volunteers (3 adults, 1 child).
• Employed an interactive inversion recovery MR pulse sequence with variable TI.

Main Results:

• Pineapple juice exhibited the shortest T1 (243 ms) and T2 (48 ms) among tested juices.
• Optimal signal differentiation between bowel contents and pineapple juice achieved with TIs of 900-1100 ms.
• Successful suppression of pre-existing bowel fluid signals.

Conclusions:

• Fruit juice, particularly pineapple juice, can function as a positive oral contrast agent.
• Inversion recovery preparation effectively suppresses long T1 bowel contents.
• Pineapple juice shows potential for neonatal gastrointestinal MRI.