Cited by 71Cardiovascular Disease and AdiposityMedical Image Segmentation TechniquesCardiac Imaging and Diagnostics

A semi-automatic approach for epicardial adipose tissue segmentation and quantification on cardiac CT scans

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Militello, Carmelo, Rundo, Leonardo, Toia, Patrizia, Conti, Vincenzo, Russo, Giorgio, Filorizzo, Clarissa, Maffei, Erica, Cademartiri, Filippo +3 more·2019·Computers in Biology and Medicine

Abstract

Many studies have shown that epicardial fat is associated with a higher risk of heart diseases. Accurate epicardial adipose tissue quantification is still an open research issue. Considering that manual approaches are generally user-dependent and time-consuming, computer-assisted tools can considerably improve the result repeatability as well as reduce the time required for performing an accurate segmentation. Unfortunately, fully automatic strategies might not always identify the Region of Interest (ROI) correctly. Moreover, they could require user interaction for handling unexpected events. This paper proposes a semi-automatic method for Epicardial Fat Volume (EFV) segmentation and quantification. Unlike supervised Machine Learning approaches, the method does not require any initial training or modeling phase to set up the system. As a further key novelty, the method also yields a subdivision into quartiles of the adipose tissue density. Quartile-based analysis conveys information about fat densities distribution, enabling an in-depth study towards a possible correlation between fat amounts, fat distribution, and heart diseases. Experimental tests were performed on 50 Calcium Score (CaSc) series and 95 Coronary Computed Tomography Angiography (CorCTA) series. Area-based and distance-based metrics were used to evaluate the segmentation accuracy, by obtaining Dice Similarity Coefficient (DSC) = 93.74% and Mean Absolute Distance (MAD) = 2.18 for CaSc, as well as DSC = 92.48% and MAD = 2.87 for CorCTA. Moreover, the Pearson and Spearman coefficients were computed for quantifying the correlation between the ground-truth EFV and the corresponding automated measurement, by obtaining 0.9591 and 0.9490 for CaSc, and 0.9513 and 0.9319 for CorCTA, respectively. In conclusion, the proposed EFV quantification and analysis method represents a clinically useable tool assisting the cardiologist to gain insights into a specific clinical scenario and leading towards personalized diagnosis and therapy.

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  1. [44][44] F.E. Boas, D. Fleischmann, CT artifacts: causes and reduction techniques, Imaging Med. 4 (2) (2012) 229-240. doi: 10.2217/iim.12.13 - · DOI

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Authors
Militello, C., Rundo, L., Toia, P., Conti, V., Russo, G., Filorizzo, C., Maffei, E., Cademartiri, F., La Grutta, L., Midiri, M., & Vitabile, S.
Affiliations
  • Institute of Molecular Bioimaging and Physiology (IT)
  • University of Cambridge (GB)
  • University of Palermo (IT)
  • Università degli Studi di Enna Kore (IT)
Corresponding author
Militello, Carmelo
Venue
Computers in Biology and Medicine
Publisher
Elsevier BV
Published
2019-11
Volume
114
Pages
103424
ISSN
0010-4825 (ISSN-L)
OpenAlex
W2972051333
Cited by
71
References
58
Citations by year
2026: 4 · 2025: 8 · 2024: 5 · 2023: 12 · 2022: 10 · 2021: 29 · 2020: 3
FWCI
7.58
Type
journal article
Language
en
Open access
Locations
  • Computers in Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Nova Science Publishers (Nova Science Publishers, Inc.) (submittedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Disease and Adiposity
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiac Imaging and Diagnostics
Keywords
epicardial adipose tissue, epicardial fat volume, semi-automatic segmentation, cardiac CT, coronary CT angiography, calcium score, coronary artery disease, computer-aided diagnosis
MeSH terms
Deep Learning, Adipose Tissue, Adult, Algorithms, Female, Humans, Image Interpretation, Computer-Assisted, Male, Middle Aged, Pericardium, Tomography, X-Ray Computed

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