The Development and Application of a New Surface Soft Coil Fixing Device for MR
To improve the efficiency of MR positioning,enhance the fixation effect of magnetic resonance surface phased array coils(MRspac),expand the coil collection range,and increase the comfort of the examinee during the examination process,a new type of MR surface soft coil fixing device(hereinafter referred to as the device)was designed in this study.The device was composed of a coil bracket,a back pad,a fixed belt and a sponge filling block.The surrounding bundling method was adopted to stably fix the coil and the examinee on the examination bed.Through the test,with 42 pregnant women in the late stage of pregnancy lying on their side on the MR examination bed,the device could quickly fix the coil and the inspected person on the examination bed with only 4 operations within the range of 0°-180°for the angle between the long axis of the coil and the long axis of the examination bed,which improved the work efficiency of MR Operation positioning.In addition,pregnant women did not experience any discomfort,which increased the comfort of the MR examination process for pregnant women,significantly reduced image artifacts caused by movement,improved the current fixation effect of MRspac,and expanded the image collection range.In the MR examination of the uterus and fetus of pregnant women in the late stage of pregnancy,the use of this device could shorten the examination time by 61%and significantly reduce the random motion artifacts of the fetus.
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