Multimodal fusion models for pulmonary embolism mortality prediction

Noa Cahan*, Eyal Klang, Edith M. Marom, Shelly Soffer, Yiftach Barash, Evyatar Burshtein, Eli Konen, Hayit Greenspan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Pulmonary embolism (PE) is a common, life threatening cardiovascular emergency. Risk stratification is one of the core principles of acute PE management and determines the choice of diagnostic and therapeutic strategies. In routine clinical practice, clinicians rely on the patient’s electronic health record (EHR) to provide a context for their medical imaging interpretation. Most deep learning models for radiology applications only consider pixel-value information without the clinical context. Only a few integrate both clinical and imaging data. In this work, we develop and compare multimodal fusion models that can utilize multimodal data by combining both volumetric pixel data and clinical patient data for automatic risk stratification of PE. Our best performing model is an intermediate fusion model that incorporates both bilinear attention and TabNet, and can be trained in an end-to-end manner. The results show that multimodality boosts performance by up to 14% with an area under the curve (AUC) of 0.96 for assessing PE severity, with a sensitivity of 90% and specificity of 94%, thus pointing to the value of using multimodal data to automatically assess PE severity.

Original languageEnglish
Article number7544
JournalScientific Reports
Volume13
Issue number1
DOIs
StatePublished - Dec 2023

Funding

FundersFunder number
Israel Science Foundation20/2629

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