目的:测量中国人的角膜后弹力层厚度并分析其与年龄的关系。方法:收集27例角膜标本,年龄范围从0.2岁到78岁,所有标本经HE染色后行组织切片并通过400倍光学显微镜行显微照相,于每张相片中选取四个测量点并人工标记后弹力层的边界,通过软...目的:测量中国人的角膜后弹力层厚度并分析其与年龄的关系。方法:收集27例角膜标本,年龄范围从0.2岁到78岁,所有标本经HE染色后行组织切片并通过400倍光学显微镜行显微照相,于每张相片中选取四个测量点并人工标记后弹力层的边界,通过软件Motic Images Plus 2.0自动计算其厚度并取平均值。采用线性回归方法分析角膜后弹力层厚度与年龄的关系。结果:所有标本的角膜后弹力层厚度为1.78μm到9.30μm,平均4.63±2.00μm。角膜后弹力层厚度与年龄具有高正相关性(r=0.776,P=0.000),线性回归方程可描述为:角膜后弹力层厚度(μm)=2.010+0.063年龄(岁)。结论:中国人的角膜后弹力层厚度与年龄之间具有显著正相关性。展开更多
The clinical application of orbital magnetic resonance（MR） T2-mapping imaging in detecting the disease activity of Graves＇ ophthalmopathy（GO）, and the predictive values of therapy response to intravenous glucocor...The clinical application of orbital magnetic resonance（MR） T2-mapping imaging in detecting the disease activity of Graves＇ ophthalmopathy（GO）, and the predictive values of therapy response to intravenous glucocorticoid（iv GC） were investigated. Approved by the local institutional review board（IRB）, 106 consecutive patients with GO were included in this prospective study. All subjects were divided into two groups according to the patients＇ clinical activity score（CAS）： the CAS positive group（CAS ≥3） or the CAS negative group（CAS 〈3）. T2 relaxation time of extraocular muscles（T2RT; ms） and the areas of four extra-ocular muscles（AEOMs; mm2） were measured by 3D T2-mapping MR sequence before and after methylprednisolone treatment, so as the CAS and some ophthalmic examinations including visual acuity, intra-ocular pressure, eyeball movement, diplopia and proptosis. In addition, 24 healthy volunteers were recruited as the control group. The mean T2RT and AEOMs in CAS positive group were higher than those in CAS negative group. Both CAS positive and negative groups had significantly higher mean T2RT and AEOMs than the control group（P〈0.01）. There was a positive correlation between T2RT and AEOMs values in GO patients, both of them had a positive correlation with CAS and the ophthalmic examinations. It was concluded that to evaluate the activity of GO, CAS was mostly related to inflammation symptoms of ocular surface, more than that, T2RT and AEOMs were also related to abnormal findings of the ophthalmic examinations including high ocular pressure, impaired eyeball movement, diplopia and proptosis. T2RT and AEOMs can reflex the inflammation state of ocular muscles better. CAS combined with 3D T2-mapping MR imaging could improve the sensitivity of detection of active GO so as the prediction and evaluation of the response to methylprednisolone treatment.展开更多
基金The National Natural Science Foundation of China(No.8120066181470606)+1 种基金The Nature Science Foundation of Hubei Province(No.2014CFB9732014CFB442)~~
文摘目的:测量中国人的角膜后弹力层厚度并分析其与年龄的关系。方法:收集27例角膜标本,年龄范围从0.2岁到78岁,所有标本经HE染色后行组织切片并通过400倍光学显微镜行显微照相,于每张相片中选取四个测量点并人工标记后弹力层的边界,通过软件Motic Images Plus 2.0自动计算其厚度并取平均值。采用线性回归方法分析角膜后弹力层厚度与年龄的关系。结果:所有标本的角膜后弹力层厚度为1.78μm到9.30μm,平均4.63±2.00μm。角膜后弹力层厚度与年龄具有高正相关性(r=0.776,P=0.000),线性回归方程可描述为:角膜后弹力层厚度(μm)=2.010+0.063年龄(岁)。结论:中国人的角膜后弹力层厚度与年龄之间具有显著正相关性。
基金supported by National Natural Sciences Foundation of China(No.81501552,and No.81401388)
文摘The clinical application of orbital magnetic resonance（MR） T2-mapping imaging in detecting the disease activity of Graves＇ ophthalmopathy（GO）, and the predictive values of therapy response to intravenous glucocorticoid（iv GC） were investigated. Approved by the local institutional review board（IRB）, 106 consecutive patients with GO were included in this prospective study. All subjects were divided into two groups according to the patients＇ clinical activity score（CAS）： the CAS positive group（CAS ≥3） or the CAS negative group（CAS 〈3）. T2 relaxation time of extraocular muscles（T2RT; ms） and the areas of four extra-ocular muscles（AEOMs; mm2） were measured by 3D T2-mapping MR sequence before and after methylprednisolone treatment, so as the CAS and some ophthalmic examinations including visual acuity, intra-ocular pressure, eyeball movement, diplopia and proptosis. In addition, 24 healthy volunteers were recruited as the control group. The mean T2RT and AEOMs in CAS positive group were higher than those in CAS negative group. Both CAS positive and negative groups had significantly higher mean T2RT and AEOMs than the control group（P〈0.01）. There was a positive correlation between T2RT and AEOMs values in GO patients, both of them had a positive correlation with CAS and the ophthalmic examinations. It was concluded that to evaluate the activity of GO, CAS was mostly related to inflammation symptoms of ocular surface, more than that, T2RT and AEOMs were also related to abnormal findings of the ophthalmic examinations including high ocular pressure, impaired eyeball movement, diplopia and proptosis. T2RT and AEOMs can reflex the inflammation state of ocular muscles better. CAS combined with 3D T2-mapping MR imaging could improve the sensitivity of detection of active GO so as the prediction and evaluation of the response to methylprednisolone treatment.
