Four-dimensional ultrasonography of the fetal heart with spatiotemporal image correlation
Four-dimensional ultrasonography of the fetal heart with spatiotemporal image correlation
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DOI：
10.1016/s0002-9378(03)00913-x
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发表时间：
2003-12-01
影响因子：
9.8
通讯作者：
Romero, R
中科院分区：
文献类型：
--
作者：
Gonçalves, LF;Lee, W;Romero, R
目的：本研究进行描述一种新的技术，用于检查胎儿心脏使用四维超声与时空图像相关（STIC）。研究设计：体积数据集的胎儿心脏获得了一个新的心脏门控技术（STIC），它使用自动化的横向和纵向扫描的前胸壁。这些体积来自69个胎儿：35个正常，16个先天性异常不影响心血管系统，18个心脏异常。对心脏结构进行动态多平面切片和表面绘制。为了说明STIC技术，将正常胎儿的两个代表性体积与以下先天性心脏病胎儿的体积进行比较：房室间隔缺损，三尖瓣狭窄，三尖瓣闭锁，下腔静脉中断伴静脉引流异常。使用横向扫描获得的体积数据集来显示心腔、调节带，房间隔和室间隔、房室瓣、肺静脉和流出道。通过使用参考点导航四腔视图，可以在三个正交平面上同时研究心内结构。使用相同的体积数据集进行房室瓣的表面渲染。当原始采集平面为矢状面时，主动脉和导管弓的可视化效果最好。除了主动脉弓和导管弓之外，还可以交互式地操纵MRI以同时可视化两个流出道。生成了特定结构的新视图。例如，室间隔缺损的位置和程度在室间隔的矢状面成像。此外，表面渲染图像的房室瓣被用来区分正常和病理条件。有代表性的视频剪辑被张贴在杂志的网站上，以证明这种新technology.CONCLUSION的诊断能力：动态多平面切片和表面渲染的胎儿心脏是可行的STIC技术。从横向扫描获得的一个高质量的体积数据集可用于检查四腔视图和流出道。这种新的方法可能有助于胎儿心脏解剖的评价。
OBJECTIVE: This study was undertaken to describe a new technique for the examination of the fetal heart using four-dimensional ultrasonography with spatiotemporal image correlation (STIC).STUDY DESIGN: Volume data sets of the fetal heart were acquired with a new cardiac gating technique (STIC), which uses automated transverse and longitudinal sweeps of the anterior chest wall. These volumes were obtained from 69 fetuses: 35 normal, 16 with congenital anomalies not affecting the cardiovascular system, and 18 with cardiac abnormalities. Dynamic multiplanar slicing and surface rendering of cardiac structures were performed. To illustrate the STIC technique, two representative volumes from a normal fetus were compared with volumes obtained from fetuses with the following congenital heart anomalies: atrioventricular septal defect, tricuspid stenosis, tricuspid atresia, and interrupted inferior vena cava with abnormal venous drainage.RESULTS: Volume datasets obtained with a transverse sweep were utilized to demonstrate the cardiac chambers, moderator band, interatrial and interventricular septae, atrioventricular valves, pulmonary veins, and outflow tracts. With the use of a reference dot to navigate the four-chamber view, intracardiac structures could be simultaneously studied in three orthogonal planes. The same volume dataset was used for surface rendering of the atrioventricular valves. The aortic and ductal arches were best visualized when the original plane of acquisition was sagittal. Volumes could be interactively manipulated to simultaneously visualize both outflow tracts, in addition to the aortic and ductal arches. Novel views of specific structures were generated. For example, the location and extent of a ventricular septal defect was imaged in a sagittal view of the interventricular septum. Furthermore, surface-rendered images of the atrioventricular valves were employed to distinguish between normal and pathologic conditions. Representative video clips were posted on the Journal's Web site to demonstrate the diagnostic capabilities of this new technique.CONCLUSION: Dynamic multiplanar slicing and surface rendering of the fetal heart are feasible with STIC technology. One good quality volume dataset, obtained from a transverse sweep, can be used to examine the four-chamber view and the outflow tracts. This novel method may assist in the evaluation of fetal cardiac anatomy.