基于MRI的在体足月胎儿体表数字化三维模型的构建

发布时间：2018-04-21 06:27

本文选题：胎儿 + 磁共振成像　；参考：《中国医学影像学杂志》2015年01期

【摘要】：目的探讨利用MRI原始数据集构建在体胎儿体表数字化三维模型的方法及意义。资料与方法选择3例有强烈自然分娩愿望并自愿在南方医科大学南方医院行下腹盆腔MRI检查的足月孕妇,用二维稳态快速采集成像序列进行扫描,采集其原始Dicom数据集并导入Mimics 10.01软件中行胎儿数字化三维重建。结果在二维图像上,胎儿体表组织呈低信号,羊水及肺、膀胱、脑脊液等含水多的器官呈高信号,胎盘及子宫壁呈中等偏低信号,胎儿体表边界清晰;成功构建出在体胎儿体表的数字化三维模型,该模型可以清晰、立体、直观地显示胎儿整体体表解剖结构,并可以从任意角度观察胎儿的形态及胎儿宫内姿势。结论基于MRI数据集可以构建在体胎儿体表数字化三维模型,具有立体感强、视野大、可任意角度观察等优点,为后期胎儿的形态学分析、生物测量及生长发育评估提供新的方法。
[Abstract]:Objective to explore the method and significance of using the original data set of MRI to construct the digital three-dimensional model of body surface of the body fetus. Data and methods selected 3 full-term pregnant women who had a strong desire for natural childbirth and volunteered at the lower abdominal pelvic MRI examination in the Southern Hospital of Southern Medical University. The Dicom data set was introduced and introduced into the digital three-dimensional reconstruction of the fetus in the Mimics 10.01 software. Results in the two-dimensional image, the fetal body surface tissue was low signal, the hydramnio and lung, the bladder, cerebrospinal fluid and other organs were high signal, the placenta and the uterus wall showed medium low signal and the fetal surface boundary was clear; the fetal body surface was successfully constructed. Digital three-dimensional model, the model can clearly, stereoscopic and intuitively display the fetal overall body surface anatomical structure, and can observe fetal morphology and fetal intrauterine posture from any angle. Conclusion based on MRI data set, it can be constructed in the digital three-dimensional model of the body fetal body surface, which has the advantages of strong stereo sense, large field of vision, and arbitrary angle observation. It provides a new method for morphological analysis, biometrics and growth assessment of later fetuses.

【作者单位】：南方医科大学南方医院妇产科;南方医科大学南方医院影像科;
【基金】：国家自然科学基金项目(81370736);国家自然科学基金重大项目(61190120,61190122)
【分类号】：R714.5;R445.2

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