Quantum Hybrid Approaches Using Vision Transformer Embeddings and Pyramidal Circuits for Analyzing Biomedical Images

By
Xavi F. Aragones
Miguel A. González Ballester
May 25, 2026

Int. Journal Of Computer Assisted Radiology And Surgery

Overview

Revise to specify the implications of a sustainable path for quantum machine learning in medical applications.

Background

Quantum machine learning (QML) offers transformative potential in biomedicine, particularly in medical image analysis. However, practical applications have been limited by the computational demands of traditional models and the scarcity of annotated medical data. This study addresses these challenges by proposing a hybrid approach that combines advanced machine learning techniques with quantum principles.

Data Highlights

This study utilized a dataset of 681 CT scans for training the model, achieving a diagnostic accuracy of 99.96% with a reduction of trainable parameters by 1,470 times compared to traditional models.

Key Findings

The proposed hybrid model integrates vision transformer embeddings with a quantum orthogonal pyramidal circuit (QOPC) for lung nodule classification.
Achieved a 28-fold reduction in computational cost compared to full-vision transformer models.
Utilized principal component analysis (PCA) to reduce embedding dimensionality to 2–16 features, aligning with current quantum hardware limitations.
Demonstrated effective learning from small datasets, leveraging the regularization properties of the QOPC.
Facilitated deployment on resource-constrained medical devices while maintaining clinical-grade accuracy.

Clinical Implications

The hybrid ViT-QOPC approach offers a promising solution for lung nodule classification, particularly in settings with limited computational resources. This model can enhance diagnostic capabilities in real-world medical applications, potentially improving patient outcomes through more efficient and accurate image analysis.

Conclusion

The integration of quantum principles with advanced machine learning techniques presents a viable pathway for enhancing medical image analysis. This study underscores the potential of quantum machine learning to address existing challenges in the field.