Effective bowel motion reduction in mouse abdominal MRI using hyoscine butylbromide
نویسندگان
چکیده
Purpose: Bowel motion is a significant source of artifacts in mouse abdominal MRI. Fasting and administration hyoscine butylbromide (BUSC) have been proposed for bowel reduction, but with inconsistent results limited efficacy assessments. Here, we evaluate these regimes MRI at high field. Methods: Thirty-two adult C57BL/6J mice were imaged on 9.4T scanner FLASH sequence, acquired over 90 minutes ~19s temporal resolution. During acquisition, eight injected low-dose high-dose bolus BUSC (0.5 5 mg/kg, respectively). Eight food deprived 4.5-6.5h before another group 8 was saline during acquisition. Two expert readers reviewed the images classified motion, quantitative voxel-wise analyses performed identification moving regions. After defining most effective protocol, high-resolution T2-weighted diffusion-weighted from four mice. Results: High-dose protocol up to 45 minutes. protocols not suppressing motion. High-resolution clearly demonstrated improved image quality ADC quantification protocol. Conclusion: Our data show that advantageous mouse. Specifically, it endows relatively short onset timings after injection (~8.5 minutes) long duration effect (~45 minutes). These features improve abdomen.
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2021
ISSN: ['0740-3194', '1522-2594']
DOI: https://doi.org/10.1002/mrm.28824