Evaluating Spatiotemporal Image Correlation Technology as a Tool for Training Nonexpert Sonographers to Perform Examinations of the Fetal Heart

• DOI: 10.7863/ultra.15.01072
• Publication Date: 2015-12-29T04:38:09Z
• Authors: Hagai Avnet; Eyal Mazaaki; Ori Shen; Sarah Cohen; Simcha Yagel
• Keywords: Fetal echocardiography; Sonographer; Fetal heart; Learning curve

We aimed to evaluate the use of spatiotemporal image correlation (STIC) as a tool for training nonexpert examiners perform screening examinations fetal heart by acquiring and examining STIC volumes according standardized questionnaire based on 5 transverse planes heart.We conducted prospective study at 2 tertiary care centers. Two sonographers without formal in echocardiography received theoretical instruction echocardiographic planes, well technology. Only women with conditions allowing 4-dimensional volume acquisitions (grayscale Doppler) were included study. Acquired evaluated offline protocol that required trainee mark 30 specified structures axial planes. Volumes then reviewed an expert examiner quality acquisition correct identification structures.Ninety-six 112 pregnant examined entered Patients had singleton pregnancies between 20 32 weeks' gestation. After initial learning curve examinations, trainees succeeded identifying 97% 98% structures, highly significant degree agreement expert's analysis (P < .001). A median each examination was necessary maximal structure identification. Acquisition scores high (8.6-8.7 score 10) found correlate rates = .017).After under guidance, is excellent master extended heart.