← Research

Imaging, anatomy and shape

Turning clinical images into anatomical models: segmentation, meshing, fibre architecture and statistical shape analysis, at the scale of whole cohorts rather than single cases.

A cycle-consistent generative adversarial network with attention, which maps late gadolinium enhanced MRI from eight days after a myocardial infarction (A) to the style of images at twelve months (B), and back, and segments the images it generates. Figure 4 of Qayyum et al. (2024), Information Fusion, under CC BY 4.0.
A cycle-consistent generative adversarial network with attention, which maps late gadolinium enhanced MRI from eight days after a myocardial infarction (A) to the style of images at twelve months (B), and back, and segments the images it generates. Figure 4 of Qayyum et al. (2024), Information Fusion, under CC BY 4.0.

Clinical images are turned into anatomical models: the chambers segmented, the surfaces reconstructed, the myocardium meshed, and fibre orientation assigned. Deep learning does much of this, from segmentation networks for cardiac MRI and CT to networks that reconstruct the shape of the heart from cine MRI or from a few standard views.

Statistical shape analysis then describes how anatomy varies across a population, and how that variation changes the function a model simulates. A shape model can also describe the uncertainty in one patient’s anatomy, and how that uncertainty changes the arrhythmias the model predicts.

Recent papers

  1. Cristobal Rodero, Lara Curran, …, Abdul Qayyum, Rosie K. Barrows, Jose A. Solis-Lemus, Shahrokh Rahmani, Marina Strocchi, Angela W.C. Lee, Tiffany M.G. Baptiste, Ludovica Cicci, …, Elias Karabelas, …, Steven A. Niederer, Journal of Molecular and Cellular Cardiology, 2026

    Computational models show that functional remodeling, not anatomy, reshapes physiological determinants of cardiac performance in hypertrophic cardiomyopathy

  2. José Alonso Solís-Lemus, Rosie K. Barrows, Cristobal Rodero, Marina Strocchi, Natalie Montarello, …, Cesare Corrado, Abdul Qayyum, Shahrokh Rahmani, Caroline Roney, …, Steven A. Niederer, PLoS Computational Biology, 2026

    Assessing the importance of sex and disease-specific anatomy in electrophysiology and mechanical simulations with a newly developed public virtual cohort of four-chamber heart models

  3. Abdul Qayyum, Moona Mazher, …, Steven Niederer, WSEAS Transactions on Signal Processing archive, 2026

    Deep Spatiotemporal Convolutional Network for Brain Reperfusion Prediction using Multiphase Computed Tomographic Angiography and Clinical Data

  4. Abdul Qayyum, Moona Mazher, Steven A. Niederer, Lecture notes in computer science, 2026

    AortaST: A Student-Teacher Framework for Multi-class Aortic Segmentation

  5. Abdul Qayyum, Moona Mazher, Steven A Niederer, Lecture notes in computer science, 2026

    CardioSeqM: A Scalable and Context-Aware Model for Unified Heart Segmentation from Volumetric Cardiac Data

  6. Abdul Qayyum, Moona Mazher, Steven A Niederer, Lecture notes in computer science, 2026

    Exploring Foundation Model Adaptations for 3D Medical Imaging: Prompt-Based Segmentation with xLSTM Network

  7. Abdul Qayyum, Moona Mazher, …, Steven A. Niederer, Lecture notes in electrical engineering, 2026

    UniSeg-CT: A Foundation Model for Medical Image Segmentation across Cardiac, Oncologic, and Neurovascular Applications

  8. Marina Strocchi, Christoph M. Augustin, …, Steven A. Niederer, Journal of Biomechanical Engineering, 2025

    Integrating Imaging and Invasive Pressure Data into a Multiscale Whole-Heart Model

  9. Charles Sillett, Vitaliy Androshchuk, …, Tiffany M.G. Baptiste, Marina Strocchi, Jose Alonso Solis Lemus, Angela WC. Lee, Caroline H. Roney, …, Steven A. Niederer, Journal of cardiovascular computed tomography, 2025

    Three-dimensional left atrial strain from retrospective gated computed tomography: Comparison with speckle-tracking echocardiography in patients with aortic stenosis

  10. Devran Ugurlu, Shuang Qian, Elliot Fairweather, …, Marina Strocchi, …, Steven Niederer, Martin Bishop, PLoS ONE, 2025

    Cardiac digital twins at scale from MRI: Open tools and representative models from ~ 55000 UK Biobank participants

  11. Aditi Kulkarni, Rosie K. Barrows, Marina Strocchi, Christoph M. Augustin, …, Steven A. Niederer, Functional Imaging and Modeling of the Heart, Lecture Notes in Computer Science, 2025

    Influence of Oestrogen on Atrial Fibrillation Risk: An In-Silico Study

  12. Angela W C Lee, Charles Sillett, José Alonso Solis-Lemus, Cassia Kessler Iglesias, …, Abdul Qayyum, Marina Strocchi, Caroline Roney, …, Steven A Niederer, European Heart Journal - Imaging Methods and Practice, 2025

    Is regional atrial strain a useful surrogate of regional atrial fibrosis in atrial cardiomyopathy?