Journal
PEDIATRIC RADIOLOGY
Volume 44, Issue 2, Pages 181-186Publisher
SPRINGER
DOI: 10.1007/s00247-013-2798-7
Keywords
MRI; Diffusion-weighted imaging; Sedation-free; Sedation; Mock scanner; Behavioral preparation; Children; Diabetes
Funding
- Jaeb Center for Health Research
- National Institutes of Health [DIRECNET U01 HD41890, HD41890-10, HD41906-10, HD41908-10, HD41915, HD41918, HD56526, UL1 RR024992]
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The ability to lie still in an MRI scanner is essential for obtaining usable image data. To reduce motion, young children are often sedated, adding significant cost and risk. We assessed the feasibility of using a simple and affordable behavioral desensitization program to yield high-quality brain MRI scans in sedation-free children. 222 children (4-9.9 years), 147 with type 1 diabetes and 75 age-matched non-diabetic controls, participated in a multi-site study focused on effects of type 1 diabetes on the developing brain. T1-weighted and diffusion-weighted imaging (DWI) MRI scans were performed. All children underwent behavioral training and practice MRI sessions using either a commercial MRI simulator or an inexpensive mock scanner consisting of a toy tunnel, vibrating mat, and video player to simulate the sounds and feel of the MRI scanner. 205 children (92.3%), mean age 7 +/- 1.7 years had high-quality T1-W scans and 174 (78.4%) had high-quality diffusion-weighted scans after the first scan session. With a second scan session, success rates were 100% and 92.5% for T1-and diffusion-weighted scans, respectively. Success rates did not differ between children with type 1 diabetes and children without diabetes, or between centers using a commercial MRI scan simulator and those using the inexpensive mock scanner. Behavioral training can lead to a high success rate for obtaining high-quality T1-and diffusion-weighted brain images from a young population without sedation.
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