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| Application of high-definition flow imaging with spatiotemporal image correlation in evaluation on normal fetal ductus venosus |
| WANG Lei, ZHANG Ying, CAI Ai-lu |
| Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang 110004, China |
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Abstract Objective: To investigate the application value of high-definition flow imaging(HDFI) and spatiotemporal image correlation(STIC) technology to identify normal fetal ductus venosus(DV). Methods: From March 2015 to September 2016, DV was detected in 155 normal fetuses at 18～37 weeks of gestation using color Doppler echocardiography and HDFI-STIC imaging. Color Doppler echocardiography was performed with an oblique transverse plane of the fetal abdomen and scanning around the midsagittal plan. HDFI pattern was used to obtain a clear fetal aortic arch or a long axial section of the ductal arch, and then the STIC program was used to collect volume data, and the 3D images of the fetal DV were obtained by the post processing software. Comparisons were made between the three methods for visualization of the normal fetal DV. Results: HDFI-STIC showed a visualization rate >90% of DV at 18～29 weeks of gestation, while the color Doppler echocardiography method did a better work than HDFI-STIC imaging in 30 weeks of pregnancy. Conclusion: HDFI-STIC technology is a new method for evaluating the DV of fetal before 30 weeks of gestation, as it can show the shape of the fetal DV and its spatial relationship with the surrounding vascular. It is possible to observe the three-dimensional morphology of fetal DV.
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Received: 20 October 2017
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