This study started by thinking about how to solve the aliasing artifact, which occurs frequently during the foot and ankle MRI scan. Therefore, we conducted this study with the aim of finding out how effective it is to reduce the aliasing artifact through RF shielding performance of carbon fabric fiber and RF heating experiments and how it affects the safety of patients against thermal injury. According to the results derived in this study, it was confirmed that the carbon fabric fiber effectively shielded RF and there was no temperature increase over time as a result of the experiment on thermal damage.

Aliasing artifact acts as an element that interferes with diagnosis by creating or overlapping unnecessary illusion by appearing unwanted anatomical structures within field of view(FOV) [2]. In order to solve this problem in hardware, it was thought that it was necessary to suppress signals from anatomical structures outside the area of interest, and for this reason, RF shielding materials were found.

There are many materials that shield RF, but the reason for using carbon fabric fiber in this study is that it is low cost, convenience, and non-metal. In the case of RF shielding products that are commercialized to be used in MRI, each must be purchased according to the human body part and the cost is very high. However, carbon fabric fiber fabric can be applied to all parts of the human body including Foot and Ankle. because it can be easily obtained around it and can be easily modified and manufactured such as shape and size, and it does not cost much. In addition, although it has the property of conducting electricity, it has the advantage of little heat generation because it is a non-metal [10].The advantages of applying Self-made Carbon Fabric Fiber Tool are as follows. First, Since Aliasing artifacts can be suppressed, the number of repeated MRI scan can be reduced along with the improvement of image quality. In addition, since oversampling can be reduced in software, it is thought that it can contribute to shortening the scan time.

In conclusion, the Self-made Carbon Fabric Fiber Tool used is safe from thermal injury, can improve image quality by reducing aliasing artifacts, and is considered a useful method to reduce scan time.

The limitations of this study are as follows.In this study, there is a disadvantage that a thermometer with a probe cannot be used when measuring temperature, and only an thermographic camera was used. There was a difficulty to get  in our hospital. If its's possible in the future, We are planning to do some research later.