Deep learning-based differentiation of ventricular septal defect from tetralogy of Fallot in fetal echocardiography

Xia Yu1,2, Liyong Ma2,3, Hongjie Wang1,2

  • 1Weihai Maternal and Children Health Hospital, Weihai, Shandong, China.

Insights

Accurate differentiation of Tetralogy of Fallot (TOF) and Ventricular Septal Defect (VSD) in fetal echocardiography is crucial. The weakly supervised data augmentation network (WSDAN) model demonstrated superior performance in distinguishing these congenital heart diseases.

Area of Science:

  • Medical Imaging
  • Artificial Intelligence in Healthcare
  • Pediatric Cardiology

Background:

  • Congenital heart disease (CHD) significantly impacts children's health and quality of life.
  • Early detection of CHD is vital for reducing its long-term effects.
  • Tetralogy of Fallot (TOF) and Ventricular Septal Defect (VSD) are common CHDs with similar echocardiographic features but differing prognoses.

Purpose of the Study:

  • To differentiate between TOF and VSD using fetal echocardiography images.
  • To evaluate the performance of various Convolutional Neural Network (CNN) models for this diagnostic task.
  • To identify the most effective AI model for accurate TOF/VSD classification.

Main Methods:

  • Utilized a dataset of 105 fetal echocardiography images of TOF and 96 images of VSD.
  • Employed four CNN models: VGG19, ResNet50, NTS-Net, and WSDAN.
  • Compared model performance using metrics including sensitivity, accuracy, specificity, and Area Under the Curve (AUC).

Main Results:

  • VGG19 and ResNet50 showed comparable performance with AUCs of 0.799 and 0.802.
  • NTS-Net and WSDAN, designed for fine-grained categorization, achieved higher AUCs of 0.823 and 0.873.
  • WSDAN outperformed all other tested models in differentiating TOF from VSD.

Conclusions:

  • The WSDAN model demonstrated the highest efficacy in distinguishing between TOF and VSD.
  • WSDAN's superior performance suggests its potential for clinical application and popularization.
  • AI-driven image analysis holds promise for improving the diagnosis of congenital heart diseases.
Abstract