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KMID : 1151820130070010057
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Journal of the Korean Society of Radiology
2013 Volume.7 No. 1 p.57 ~ p.62
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Quantitative evaluation of MRI distortion using orthopedic prosthetic metal
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Kim Hyong-Gyun
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Abstract
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Despite the many advantages of magnetic resonance imaging in orthopedic prosthetic body image distortion to the differences in the magnetic susceptibility occurs. Attached to the phantom and pork produced by the same 65x15x2mm stainless steel and titanium specimen examined the relationship between magnetic resonance imaging and phantom images, the signal intensity changes of the subcutaneous tissue, fat-suppressed quantitative assessment of the degree through the length of image distortion and pig bones. Stainless steel to titanium to 2.8 times 4.4 times in the longitudinal direction than in the direction of the height of large image distortion, signal strength is relatively low 58.5%. Normal 56.2% compared to the subcutaneous tissue, fat-suppressed, were stainless steel 16.04%, 54.53% titanium. Experimental results than the diagnostic value of magnetic resonance imaging (MRI) images of stainless steel with a titanium metal if better could see.
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KEYWORD
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MRI, Orthopedic prosthetic, Image Distortion, Implant Metal, T2WI, T1WI
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