目的观察高度近视并发性白内障患者植入AT LISA tri 839 MP三焦点人工晶状体术后视力,视觉质量和满意度。方法回顾性病例研究。选取我院高度近视并发性白内障患者30例(46只眼),所有术眼均行飞秒激光辅助白内障超声乳化吸除+囊袋张力环+...目的观察高度近视并发性白内障患者植入AT LISA tri 839 MP三焦点人工晶状体术后视力,视觉质量和满意度。方法回顾性病例研究。选取我院高度近视并发性白内障患者30例(46只眼),所有术眼均行飞秒激光辅助白内障超声乳化吸除+囊袋张力环+三焦点人工晶状体植入术。记录术前、术后1 d、1周、1个月、3个月、6个月未矫正远视力(UDVA)、未矫正中视力(UIVA)、未矫正近视力(UNVA),以及术后6个月离焦曲线、对比敏感度,并进行满意度,脱镜率及VF-14-CN视功能量表的问卷调查。结果术后1 d、1周、1个月、3个月、6个月的UDVA、UIVA、UNVA均较术前提高,差异有统计学意义(P<0.01);术后6个月,离焦曲线0~-3.0 D范围内,视力均>0.2 logMAR,且较为平缓;术后6个月明环境和暗+眩光环境下不同空间频率(3、6、12、18 cpd)的对比敏感度均在同年龄段正常范围;术后满意度100%,远、中、近距离脱镜率分别为100%、100%、89.13%,VF-14-CN视功能量表得分(97.98±1.55)分,所有患者均愿意再次选择和向周围亲戚朋友推荐同款人工晶状体。结论AT LISA tri 839MP三焦点人工晶状体可为高度近视并发性白内障患者带来良好的远、中、近全程视力,且脱镜率及满意度高,视觉质量较好。展开更多
IM To compare the proliferating activity between HBVrelated small hepatocellular carcinoma (HCC) and HCVrelated small HCC.METHODS Sixty liver biopsy specimens from patients with small HCC (≤3cm in diameter) were ex...IM To compare the proliferating activity between HBVrelated small hepatocellular carcinoma (HCC) and HCVrelated small HCC.METHODS Sixty liver biopsy specimens from patients with small HCC (≤3cm in diameter) were examined immunohistochemically using antiproliferating cell nuclear antigen monoclonal antibody, of them 30 were HBVrelated HCC and 30 HCVrelated HCC with matched sex and morphologic features.RESULTS The labeling index of proliferating cell nuclear antigen was 79% in HBVrelated HCC and 125% in HCVrelated HCC. There was no statistically significant differences between the two groups (P>005).CONCLUSION In the early phase or small stage of hepatocellular carcinoma, HBVrelated HCC showed similar proliferating activity to that of HCVrelated HCC which suggested that in the early phase, HBVrelated HCC has similar malignancy to HCVrelated HCC.展开更多
现有宽带单脉冲测向方法适用的波束指向角偏差范围小,且基本未考虑分子阵情况,并忽略了匹配滤波对信号的影响。针对这些问题,对宽带线性调频(linear frequency modulation,LFM)信号,提出一种基于子阵内部补相、子阵之间补时延的宽带波...现有宽带单脉冲测向方法适用的波束指向角偏差范围小,且基本未考虑分子阵情况,并忽略了匹配滤波对信号的影响。针对这些问题,对宽带线性调频(linear frequency modulation,LFM)信号,提出一种基于子阵内部补相、子阵之间补时延的宽带波束形成的单脉冲测向方法。所提方法通过子阵级处理减少计算复杂度,降低成本,并且分析了匹配滤波对和/差波束的影响,由此推导与实际和/差波束比更为吻合的单脉冲比鉴角曲线表达式,接着提出一种适用波束指向角偏差范围更宽的角度估计方法。与常规单脉冲角度测量方法相比,所提方法具有在低信噪比条件下可测角、测角精确度高,对指向偏差角不敏感,且对大/小型阵列均适用等特点。展开更多
文摘目的观察高度近视并发性白内障患者植入AT LISA tri 839 MP三焦点人工晶状体术后视力,视觉质量和满意度。方法回顾性病例研究。选取我院高度近视并发性白内障患者30例(46只眼),所有术眼均行飞秒激光辅助白内障超声乳化吸除+囊袋张力环+三焦点人工晶状体植入术。记录术前、术后1 d、1周、1个月、3个月、6个月未矫正远视力(UDVA)、未矫正中视力(UIVA)、未矫正近视力(UNVA),以及术后6个月离焦曲线、对比敏感度,并进行满意度,脱镜率及VF-14-CN视功能量表的问卷调查。结果术后1 d、1周、1个月、3个月、6个月的UDVA、UIVA、UNVA均较术前提高,差异有统计学意义(P<0.01);术后6个月,离焦曲线0~-3.0 D范围内,视力均>0.2 logMAR,且较为平缓;术后6个月明环境和暗+眩光环境下不同空间频率(3、6、12、18 cpd)的对比敏感度均在同年龄段正常范围;术后满意度100%,远、中、近距离脱镜率分别为100%、100%、89.13%,VF-14-CN视功能量表得分(97.98±1.55)分,所有患者均愿意再次选择和向周围亲戚朋友推荐同款人工晶状体。结论AT LISA tri 839MP三焦点人工晶状体可为高度近视并发性白内障患者带来良好的远、中、近全程视力,且脱镜率及满意度高,视觉质量较好。
文摘IM To compare the proliferating activity between HBVrelated small hepatocellular carcinoma (HCC) and HCVrelated small HCC.METHODS Sixty liver biopsy specimens from patients with small HCC (≤3cm in diameter) were examined immunohistochemically using antiproliferating cell nuclear antigen monoclonal antibody, of them 30 were HBVrelated HCC and 30 HCVrelated HCC with matched sex and morphologic features.RESULTS The labeling index of proliferating cell nuclear antigen was 79% in HBVrelated HCC and 125% in HCVrelated HCC. There was no statistically significant differences between the two groups (P>005).CONCLUSION In the early phase or small stage of hepatocellular carcinoma, HBVrelated HCC showed similar proliferating activity to that of HCVrelated HCC which suggested that in the early phase, HBVrelated HCC has similar malignancy to HCVrelated HCC.
文摘现有宽带单脉冲测向方法适用的波束指向角偏差范围小,且基本未考虑分子阵情况,并忽略了匹配滤波对信号的影响。针对这些问题,对宽带线性调频(linear frequency modulation,LFM)信号,提出一种基于子阵内部补相、子阵之间补时延的宽带波束形成的单脉冲测向方法。所提方法通过子阵级处理减少计算复杂度,降低成本,并且分析了匹配滤波对和/差波束的影响,由此推导与实际和/差波束比更为吻合的单脉冲比鉴角曲线表达式,接着提出一种适用波束指向角偏差范围更宽的角度估计方法。与常规单脉冲角度测量方法相比,所提方法具有在低信噪比条件下可测角、测角精确度高,对指向偏差角不敏感,且对大/小型阵列均适用等特点。