Ultrasound vector flow mapping in left ventricle: A do it yourself study

Document Type

Conference Proceeding

Publication Date

8-20-2021

Abstract

Ultrasound-based vector flow mapping (VFM) has drawn considerable interest and may impact how left ventricular (LV) function is assessed in the clinical workflow. However, VFM is yet widely available. Only a few ultrasound vendors (e.g. BK Ultrasound, Hitachi Aloka, and Mindray) offer VFM packages on their systems. Furthermore, some research VFM packages require non-standard clinical equipment (e.g. unfocused plane wave transmit) or proprietary software (e.g. access to raw Doppler and speckle tracking data). This study is motivated to re-implement a published VFM method without any vendor's technical support and proprietary software while using standard clinical equipment and its output. Initial validation of our do-it-yourself (DYI) VFM implementation was done by qualitatively comparing 2D VFM measurements of our system with those of a clinical system (Aloka, Hitachi, Japan) for 4 human subjects. In particular, flow measurements obtained by our DIY methods were assessed by two board-certified ultrasound radiologists. Both radiologists agreed that streamlines generated by the proposed DIY approach were visually consistent with gross hemodynamic patterns produced by the above-mentioned clinical VFM workstation. Further developments of the proposed method may accelerate the translation of VFM into the clinical workflow.

Publication Title

2021 4th International Conference on Pattern Recognition and Artificial Intelligence, PRAI 2021

ISBN

9781665413220

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