羟基磷灰石义眼座血管化的MRI量化数据分析

Analysis of MRI quantitative data of the vascularization of hydroxyapatite orbital implant

目的:在以往研究的基础上,运用MRI量化数椐分析帽式巩膜瓣覆盖法植入羟基磷灰石(HA)义眼座血管化情况,评价该术式的优越性。方法:回顾性分析26例眼眶内植入HA义眼座MRI表现,术后1～10mo至少行一次MRI平扫及增强检查,计算出义眼座的VE/VHA比值,VE为义眼座强化区体积,VHA为义眼座体积。结果:患者26例眼眶内植入HA义眼座均未出现手术并发症。收集到VE/VHA比值分布为术后1mo3例,术后2mo5例,术后3mo5例,术后4mo7例,术后5～10mo6例,经统计学处理后显示前5moHA内血管变化明显,5mo后则不再发生变化。结论:MRI增强扫描可以精确量化观测义眼座血管化程度和范围,帽式巩膜瓣覆盖法植入HA义眼座完全血管化的时间是术后5mo左右。

AIM：Using MRI quantitative data analysis to study the vascularization of scleral cap-style of hydroxyapatite（HA） orbital implant on the basis of past research, and to evaluate the superiority of this operation.METHODS：Retrospectively analyzed the MRI manifestation of 26 cases of intraorbital HA orbital implantation. MRI （plain and enhanced） examination were performed at least once in 1-10 months after operation, and calculated the ratio of MRI（VE/VHA）. VE is the volume of enhanced area of orbital implant,and VHA is the volume of orbital implant.RESULTS：No surgical complications occurred in the 26 cases of intraorbital HA orbital implantation, with 3 cases collected after 1 month, 5 cases after 2 months, 5 cases after 3 months, 7 cases after 4 months, and 6 cases after 5-10 months. Statistic processing shows that vascularization was obvious in the previous 5 months, but unchanged 5 months later.CONCLUSION：Enhanced MRI can precisely and quantitatively observe the degree and range of vascularization of orbital implant, the fully vascularization time of scleral cap-style of HA orbital implant is 5 months after operation.