摘要
目的通过对比主动脉根部(AoR)的经食管三维超声心动图(3D‐T EE)和计算机断层扫描(CT )两种医学数字成像和通信(DICOM )数据3D打印模型,初步探讨3D‐T EE作为影像数据源3D打印AoR模型的可行性.方法选取15例于本院拟行外科主动脉瓣置换术患者,围手术期获取AoR的3D‐T EE 、 CT DICOM 数据,导入M imics软件,处理后生成数字模型标准镶嵌语言文件,应用3D打印机打印AoR模型.定性评估3D‐TEE模型和CT模型的结构形态,定量评估两种影像原始数据、数字模型、模型、置换瓣的主瓣环相关参数,包括瓣环面积、周长、最长径、最短径,对比分析各参数值的一致性;计算3D‐TEE模型、 CT模型主瓣环内径均值,分析内径均值与置换瓣型号的相关性.结果①3D‐T EE 、 CT 数据源均成功3D打印两种模型,其中瓣膜结构的阳性显示率分别为 93 .3%(14/15)、 80 .0%(12/15);②3D‐TEE及其对应数字模型的主瓣环各参数测量值均分别小于CT 及其数字模型和置换瓣环( P <0 .05),各组参数测量一致性高;③3D‐TEE模型的各参数值均小于CT 模型(P<0.05),各测值均在一致性范围内;两种模型的内径均值与置换瓣型号相关性极强(r >0.95,P <0 .05).结论基于3D‐TEE影像数据,3D打印AoR模型具有较高的可行性.
Objective To preliminary explore the feasibility of three-dimensional transesophageal echocardiography (3D-TEE) as images data source for 3D printing model by comparing the 3D-TEE with CT of the aortic root Digital Imaging and Communications in Medicine(DICOM) data into 3D printing models respectively. Methods Fifteen patients who underwent surgical aortic valve replacement in the hospital were enrolled, and the aortic root 3D-TEE and CT DICOM data were obtained in perioperative. The images were imported into Mimics software to generate digital model standard tessellation language file, and to print the aortic root models by 3D printer. The structural morphology of both 3D-TEE and CT models were qualitatively evaluated respectively. The aortic annular area, perimeter, maximal diameter and minimal diameter of the original data, digital model, model and aortic valve replacement were quantitatively evaluated, and the consistency of each parameter value were analyzed. The mean diameter of 3D-TEE and CT model were calculated. The correlation of mean diameter with the number of replacement was analyzed. Results ①Both 3D-TEE and CT images data were successfully printed into 3D models, and the positive rate of aortic valve structure were 93.3%(14/15) and 80.0%(12/15) respectively.②The measured values of the aortic annular 3D-TEE and digital model were smaller than CT, CTdigital model and replacement (P<0.05), and the measurement consistency among groups was high.③The parameter values of 3D-TEE model were smaller than CT model (P<0.05), and the measured values were all within the consistency range. The mean diameters were highly correlated with the replacement values (r>0.95, P<0.05). Conclusions 3D printing aortic root model based on 3D-TEE image data is of high feasibility.
作者
宋弯弯
杨远婷
周青
宋宏宁
胡波
郭娟
夏军
闵心平
彭宙锋
郭瑞强
Song Wanwan;Yang Yuanting;Zhou Qing;Song Hongning;Hu Bo;Guo Juan;Xia Jun;Min Xinping;Peng Zhoufeng;Guo Ruiqiang(Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan 430060, China;Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China;Department of Radiology, Renmin Hospital of Wuhan University, Wuhan 430060, China)
出处
《中华超声影像学杂志》
CSCD
北大核心
2019年第10期842-848,共7页
Chinese Journal of Ultrasonography
基金
国家自然科学基金项目(81771849)
中央高校基本科研业务费专项资金(2042018kf0099).
