Abstract #1400

Development of a new prototype body holder for MR examination in unanesthetized neonates

Iichiro Osawa¹, Takako Aoki¹, Takashi Ushimi¹, Kaiji Inoue¹, Junji Tanaka¹, and Mamoru Niitsu¹

¹Radiology, Saitama Medical University Hospital, Saitama, Japan

To avoid motion artifacts, neonates often require anesthesia during MRI scans. However, this procedure increases the risk of adverse events such as respiratory depression. We developed a body holding device to minimize motion without anesthesia and examined nine low-birth-weight neonates, comparing MR image quality between unanesthetized and anesthetized conditions. The device is based on a modified spinal immobilizer and is easily handled with a short setup time. We obtained structural images during natural sleep uneventfully, preserving the image quality. In summary, the body holder can reduce the motion of neonates safely and improve image quality.

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