| 杨宝军,席建平,赵春丽,等.低剂量容积螺旋穿梭技术 4D运动轨迹成像在髌股关节紊乱检查中的优势[J].安徽医药,2020,24(6):1138-1141. |
| 低剂量容积螺旋穿梭技术 4D运动轨迹成像在髌股关节紊乱检查中的优势 |
| Advantage of 4D tracking imaging with low?dose volume helical shuttle in the examination of patellofemoral joint disorder |
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| DOI：10.3969/j.issn.1009?6469.2020.06.019 |
| 中文关键词: 髌股关节/放射摄影术 体层摄影术，螺旋计算机 四维计算机体层摄影术 容积螺旋穿梭 运动轨迹 |
| 英文关键词: Patellofemoral joint/radiography Tomography,spiral computed Four?dimensional computed tomography Volume helical shuttle Motion tracking |
| 基金项目:陕西省宝鸡市卫计局2017年科研招标课题( 2017?15) |
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| 中文摘要: |
| 目的探讨低剂量容积螺旋穿梭技术( VHS)4D运动轨迹成像在髌股关节紊乱检查中的优势及应用价值。方法选择 2017年 1月至 2019年 3月经宝鸡市中医医院临床确诊的 48例髌股关节紊乱病人，采用随机数字表法分为常规组及 VHS组，每组各 24例。 VHS组使用低剂量 VHS扫描模式，扫描后对图像进行自适应统计迭代重建( ASiR)；常规组采用常规扫描方案及常规剂量参数。两组图像分别测量反映髌股关节咬合关系的指标， VHS组并重建髌骨 4D运动轨迹。统计指标异常关节，比较两种方法对髌股关节紊乱的检出率，并对两组病例的图像质量、辐射剂量进行比较，对 VHS组髌骨运动轨迹质量进行评分。结VHS组对病膝的检出率为 100.0%，常规组为 78.1%，VHS组的检出率明显高于常规组，差异有统计学意义( P＝0.001)； VHS组果剂量长度乘积( DLP)为( 175.69±15.61)mGy·cm，较常规组 DLP(281.33±20.47)mGy·cm辐射量减少了 37.6%(t＝3.667，P＝ 0.001)。VHS组图像满意率为 91.7%，常规组为 95.8%，满意率差异无统计学意义(P＝0.500)。VHS组轨迹合格率为 95.8%。结论髌股关节 VHS低剂量 4D运动轨迹成像技术，在髌股关节紊乱诊断中较常规检查方法具有明显的优势，值得推广应用。 |
| 英文摘要: |
| Objective To explore the advantages and application value of 4D tracking by low?dose volume helical shuttle(VHS) technique in the examination of patellofemoral joint disorder.Methods Forty?eight patients with clinically diagnosed patellofemoraljoint disorder in Baoji Tradition Chinese Medicine Hospital from January 2017 to March 2019 were randomly assigned into routinegroup and VHS group according to random numbers，with 24 cases in each group.The VHS group used VHS scan mode with low? dose，and the image was reconstructed by adaptive statistical iterative reconstruction(ASiR)after scanning while the routine groupused standard scanning protocol and dose parameter.The indicators of the two groups were measured that reflect the relationship be?tween the patellofemoral joints，the 4D tracking of the tibia was reconstructed in the VHS group，and all the abnormal joints werestatistically and analyzed.The detection rate of the patellofemoral joint disorder was compared between the two methods.The imagequality and radiation dose of the two groups were compared，and the tracking quality of the tibia was scored in the VHS group.Re? sults The detection rate of sick knees in the VHS group was 100.0%，and that in the routine group was 78.1%.The detection rateof the VHS group was significantly higher than that of the routine group，and there was statistical difference(P＝0.001).The dose length product(DLP) of the VHS group was(175.69±15.61) mGy·cm，which was 37.6% less than that of the routine group(281.33±20.47)mGy·cm(t＝3.667，P＝0.001).The image satisfaction rate of the VHS group was 91.7%，and that of the routine group was 95.8%，there was no significant difference(P＝0.500).The tracking pass rate was 95.8% of the VHS group.Conclusion The VHS with low?dose technique has obvious advantages over the conventional examination methods in the diagnosis of patellofem?oral joint disorders，and it is worthy of popularization and application. |
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