摘要
目的:探讨不同噪声指数(Noise Index,NI)行双下肢全长CT检查,对人工智能辅助全髋关节置换术(total hip arthroplasty,THA)三维规划关节的假体型号匹配度及辐射剂量的影响。方法:纳入50例拟行全髋关节置换手术患者,随机分为两组,每组各25例。观察组NI=16和对照组NI=8,其余扫描参数一致。比较两组规划关节型号与实际运用符合率及辐射剂量结果差异。结果:与对照组相比,观察组CT容积剂量指数降低了67%、剂量长度乘积和有效剂量降低了75%,差异均有统计学意义(P<0.05)。两组规划关节假体型号与实际运用一致性,差异无统计学意义(P>0.05)。结论:在人工智能辅助髋关节置换术三维规划中,低剂量CT扫描可在保证规划关节的假体型号匹配度情况下显著降低辐射剂量。
Objective:To investigate the effect of various Noise Index(NI)on the prosthesis is size matching and radiation dose of bilateral lower extremity full-length CT examination during the three-dimensional planning process of total hip arthroplasty(THA).Methods:50 patients scheduled for THA were divided into two groups at random,with 25 cases in each group.The NI values were set to 16 in the observation group and 8 in the control group,and the other scanning parameters were consistent.The difference in radiation dose and the coincidence rate between the planned joint model and actual applications were compared between the two groups.Results:When compared to the control group,the volume CT dose index was decreased by 67%,while dose length product and effective dose were decreased by 75%in observation group,and these differences were statistically significant(P<0.05).The planning and actual implementation of joint prostheses did not differ significantly between the two groups(P<0.05).Conclusions:Low-dose CT scanning can significantly decrease the radiation dose while ensuring the matching degree of the planned joint prosthesis in artificial intelligence-assisted three-dimensional planning of THA.
作者
裴锦奎
汪禾青
谢安杰
黄晋旺
张进慧
PEI Jin-kui;WANG He-qing;XIE An-jie;HUANG Jin-wang;ZHANG Jin-hui(Department of Radiology,Zhongshan Hospital(Xiamen),Fudan University,Fujian Xiamen 361015)
出处
《中国医疗器械信息》
2023年第22期4-7,共4页
China Medical Device Information
关键词
全髋关节置换手术
人工智能
术前计划
低剂量CT
total hip arthroplasty
artificial intelligence
preoperative planning
low dose CT
