摘要
目的探索不同体积ITI种植体在3.0T磁共振成像(MRI)检查中的伪影影响。方法将同一直径不同长度的两枚ITI种植体分别固定在志愿者两侧下颌骨皮肤表面,做MRI测试。磁共振仪磁场强度为3.0 T,采用TSE/EPI序列。结果两枚种植体都能在MRI检查中产生伪影,影响局部区域成像质量,其中体积较大的种植体产生的伪影更大。结论纯钛ITI种植体在MRI检查中,对其周围软组织成像有一定影响,并且伪影面积大小与种植体体积有关。
Objective To investigate the artifact influence of IT1 implants with different volumes on 3.0T MRL Methods Two ITI implants with the same diameter but different length are fixed on skin sttrfaee of the bilateral mandibular, then these volunteers are detected by MRI. The magnetic field intensity is 3.0 T, and TSE/EPI sequence is used. Results Both of implants produce artifacts on the MRI, which could affect image qualities of local area. And the implant with larger volume has bigger artifact. Conclusion Under MRI examination, the ITI implants with pure titanium has certain influence on imagings of surrounding soft tissues. And the areas of the artifacts are relate to implant volume.
出处
《中国医疗设备》
2012年第11期160-162,共3页
China Medical Devices
