Detection of left bundle branch block and obstructive coronary artery disease from myocardial perfusion scintigraphy using deep neural networksShow others and affiliations
2021 (English)In: MEDICAL IMAGING 2021: COMPUTER-AIDED DIAGNOSIS, SPIE-INT SOC OPTICAL ENGINEERING , 2021, Vol. 11597, article id 115970NConference paper, Published paper (Refereed)
Abstract [en]
Myocardial perfusion scintigraphy, which is a non-invasive imaging technique, is one of the most common cardiological examinations performed today, and is used for diagnosis of coronary artery disease. Currently the analysis is performed visually by physicians, but this is both a very time consuming and a subjective approach. These are two of the motivations for why an automatic tool to support the decisions would be useful. We have developed a deep neural network which predicts the occurrence of obstructive coronary artery disease in each of the three major arteries as well as left bundle branch block. Since multiple, or none, of these could have a defect, this is treated as a multi-label classification problem. Due to the highly imbalanced labels, the training loss is weighted accordingly. The prediction is based on two polar maps, captured during stress in upright and supine position, together with additional information such as BMI and angina symptoms. The polar maps are constructed from myocardial perfusion scintigraphy examinations conducted in a dedicated Cadmium-Zinc-Telluride cardio camera (D-SPECT Spectrum Dynamics). The study includes data from 759 patients. Using 5-fold cross-validation we achieve an area under the receiver operating characteristics curve of 0.89 as average on per-vessel level for the three major arteries, 0.94 on per-patient level and 0.82 for left bundle branch block.
Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING , 2021. Vol. 11597, article id 115970N
Series
Proceedings of SPIE, ISSN 0277-786X
Keywords [en]
Obstructive coronary artery disease; left bundle branch block; deep learning; convolutional neural network
National Category
Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:liu:diva-178566DOI: 10.1117/12.2580890ISI: 000672800100020ISBN: 978-1-5106-4024-5 (print)OAI: oai:DiVA.org:liu-178566DiVA, id: diva2:1588475
Conference
Conference on Medical Imaging - Computer-Aided Diagnosis, ELECTR NETWORK, feb 15-19, 2021
Note
Funding Agencies|Analytic Imaging Diagnostics Arena, Vinnova [2017-02447]
2021-08-272021-08-272021-08-27