Comparing the Non-Quiver and Quiver Techniques for Identification of the Endocardial Borders Used for Speckle-Tracking Analysis of the Ventricles of the Fetal Heart

J Ultrasound Med. 2021 Sep;40(9):1955-1961. doi: 10.1002/jum.15561. Epub 2020 Nov 11.


This study compared the non-quiver with the quiver technique for identifying the end-systolic and end-diastolic endocardium of the fetal right ventricle (RV) and left ventricle (LV) used for speckle-tracking analysis. Bland-Altman and t test analyses showed no significant differences in measurements between the techniques for the RV and LV. The difference in the time required to perform the non-quiver analysis was significantly longer (P < .001) for the RV and LV than the quiver technique. The quiver technique allows the examiner to efficiently identify the endocardial borders of the fetal heart compared with the non-quiver method.

Keywords: fetal echocardiography; global longitudinal strain; speckle-tracking analysis.

MeSH terms

  • Diastole
  • Echocardiography
  • Endocardium* / diagnostic imaging
  • Fetal Heart / diagnostic imaging
  • Heart Ventricles* / diagnostic imaging
  • Humans