CERAMIC SURGICAL-INSTRUMENTS - EX-VIVO EVALUATION OF COMPATIBILITY WITH MR-IMAGING AT 1.5 T

The purpose of this study was to evaluate the MR compatibility of cera mic instruments. Mine different ceramic instruments were tested with r espect to ferromagnetism, heating, and artifacts using previously desc ribed techniques. There was no magnetic held attraction, temperature i ncreases were less than or equal to.1 degrees C, and artifacts involve d a signal void similar to the size and shape of each instrument, The ceramic instruments were demonstrated to be compatible with MR imaging and acceptable for use during intraprocedural MR imaging.