Prenatal Diagnosis of Fetal Interrupted Aortic Arch Type A by Two‐Dimensional Echocardiography and Four‐Dimensional Echocardiography with B‐Flow Imaging and Spatiotemporal Image Correlation

• DOI: 10.1111/echo.12996
• Publication Date: 2015-06-23T05:09:15Z
• Authors: Dongyu Zhang; Ying Zhang; Weidong Ren; Feifei Sun; Yajun Guo; Wei Sun; Yu Wang; Liping Huang; Ailu Cai
• Keywords: Fetal echocardiography

Background Fetal interrupted aortic arch (IAA) is a rare cardiac anomaly and its prenatal diagnosis challenging. The purpose of our report to evaluate the use two‐dimensional echocardiography (2 DE ) 4D with B‐flow imaging spatiotemporal image correlation (4D BF ‐ STIC in detecting IAA type A ( ‐A). Materials & Methods Twenty‐three cases confirmed ‐A identified by fetal were involved study. data reviewed analyze ratio right ventricle left RV / LV diameter, main pulmonary artery ascending aorta MPA AAO diameter size ventricular septal defect VSD ). was performed 21 fetuses using sagittal view ‐sagittal) four‐chamber ‐4 CV as initial planes view. An additional 183 normal also included ratios calculated compared that fetuses. 2 , ‐sagittal, used visualize associated neck vessels. Six subgroups evaluated according gestational age. Results made correct 19/23 (82.6%), 14/21 (66.7%), 19/21 (90.5%) patients, respectively. significantly enlarged combined symmetric ventricles found fetuses, while negatively correlated ratio. ‐sagittal better than traditional 2D ultrasound vessels between 17 28 weeks 29 40 Conclusion It demonstrated could be diagnosed echocardiography, technique display anatomic structure spatial relationships great arteries. Use volume reconstruction may promote clinical usage help diagnosis.