目的:采用磁共振扩散张量成像(MR-DTI)对腕管综合征(CTS)患者局部注射类固醇的疗效进行评价。方法:纳入本院临床确诊并接受超声引导下类固醇局部注射的CTS患者30例(30个腕管),分别于术前1周及术后1个月测量其正中神经(MN)在尺桡远端关节...目的:采用磁共振扩散张量成像(MR-DTI)对腕管综合征(CTS)患者局部注射类固醇的疗效进行评价。方法:纳入本院临床确诊并接受超声引导下类固醇局部注射的CTS患者30例(30个腕管),分别于术前1周及术后1个月测量其正中神经(MN)在尺桡远端关节(DRUJ)、豌豆骨(P)、钩状骨(H)三个层面的部分各向异性值(FA)和表观扩散系数(ADC)值,并记录其波士顿CTS问卷评分,比较其差异并进行相关性分析。结果:与治疗前[(1.46±0.13)×10-3 mm 2/s]比较,局部注射类固醇后[(1.28±0.11)×10-3 mm 2/s]豌豆骨水平的ADC值降低(P<0.05),而其FA值未见升高(0.46±0.05 vs.0.48±0.08,P>0.05)。在DRUJ和H水平,FA值(0.54±0.05 vs.0.58±0.10;0.43±0.07 vs.0.44±0.11)和ADC值[(1.22±0.15)×10-3 mm 2/s vs.(1.15±0.19)×10-3 mm 2/s;(1.46±0.15)×10-3 mm 2/s vs.(1.43±0.12)×10-3 mm 2/s]在治疗前后未见明显变化(P>0.05)。豌豆骨水平的ADC差值与BCTQ评分差值呈正相关(r=0.681,P<0.05)。结论:MR-DTI可用于CTS患者保守治疗后的影像随访,豌豆骨水平的ADC值可用于CTS患者局部类固醇注射治疗后的疗效评价。展开更多
To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the...To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the tubercle characters on lemma in Yihuang wild rice, O. rufipogon, 0. officinalis, 0. meyeriana, and O. granulata, were also observed by scanning electron microscopy. The retrieval result by genus showed that Yihuang wild rice is Leersia Soland. Ex Swartz., not Oryza L., Hygroryza Nees and Chikusichloa Koidz. The retrieval result by species showed that Yihuang wild rice is L. sayanuka Ohwi, not L. hexandra Swartz., L. japonica （Makino） Honda and L. oryzoides （L.） Swartz. The results of the SEM observation on tubercles on lemma showed that the tubercle characters on lemma of Yihuang wild rice belongs to ＂inlaid- silica-peak＂ type, which is different from the three types of wild rice existing in China, O. rufipogon, O. officinalis, O. Meyeriana, and also O. granulata, but is similar to L. tisseranti, thereby gives a proof of the above retrieval results. It could be concluded that Yihuang wild rice does not belong to Oryza L., but to Leersia sayanuka Ohwi of Leersia Soland. Ex Swartz.展开更多
文摘目的:采用磁共振扩散张量成像(MR-DTI)对腕管综合征(CTS)患者局部注射类固醇的疗效进行评价。方法:纳入本院临床确诊并接受超声引导下类固醇局部注射的CTS患者30例(30个腕管),分别于术前1周及术后1个月测量其正中神经(MN)在尺桡远端关节(DRUJ)、豌豆骨(P)、钩状骨(H)三个层面的部分各向异性值(FA)和表观扩散系数(ADC)值,并记录其波士顿CTS问卷评分,比较其差异并进行相关性分析。结果:与治疗前[(1.46±0.13)×10-3 mm 2/s]比较,局部注射类固醇后[(1.28±0.11)×10-3 mm 2/s]豌豆骨水平的ADC值降低(P<0.05),而其FA值未见升高(0.46±0.05 vs.0.48±0.08,P>0.05)。在DRUJ和H水平,FA值(0.54±0.05 vs.0.58±0.10;0.43±0.07 vs.0.44±0.11)和ADC值[(1.22±0.15)×10-3 mm 2/s vs.(1.15±0.19)×10-3 mm 2/s;(1.46±0.15)×10-3 mm 2/s vs.(1.43±0.12)×10-3 mm 2/s]在治疗前后未见明显变化(P>0.05)。豌豆骨水平的ADC差值与BCTQ评分差值呈正相关(r=0.681,P<0.05)。结论:MR-DTI可用于CTS患者保守治疗后的影像随访,豌豆骨水平的ADC值可用于CTS患者局部类固醇注射治疗后的疗效评价。
基金supported by the National Natural Science Foundation of China(30560073)the Key Technologies R&D Program of Jiangxi Province,China(200210100210).
文摘To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the tubercle characters on lemma in Yihuang wild rice, O. rufipogon, 0. officinalis, 0. meyeriana, and O. granulata, were also observed by scanning electron microscopy. The retrieval result by genus showed that Yihuang wild rice is Leersia Soland. Ex Swartz., not Oryza L., Hygroryza Nees and Chikusichloa Koidz. The retrieval result by species showed that Yihuang wild rice is L. sayanuka Ohwi, not L. hexandra Swartz., L. japonica （Makino） Honda and L. oryzoides （L.） Swartz. The results of the SEM observation on tubercles on lemma showed that the tubercle characters on lemma of Yihuang wild rice belongs to ＂inlaid- silica-peak＂ type, which is different from the three types of wild rice existing in China, O. rufipogon, O. officinalis, O. Meyeriana, and also O. granulata, but is similar to L. tisseranti, thereby gives a proof of the above retrieval results. It could be concluded that Yihuang wild rice does not belong to Oryza L., but to Leersia sayanuka Ohwi of Leersia Soland. Ex Swartz.
