Automatic identification of end-diastolic and end-systolic cardiac frames from invasive coronary angiography videos.
Technol Health Care
; 30(5): 1107-1116, 2022.
Article
em En
| MEDLINE
| ID: mdl-35599518
ABSTRACT
BACKGROUND:
Automatic identification of proper image frames at the end-diastolic (ED) and end-systolic (ES) frames during the review of invasive coronary angiograms (ICA) is important to assess blood flow during a cardiac cycle, reconstruct the 3D arterial anatomy from bi-planar views, and generate the complementary fusion map with myocardial images. The current identification method primarily relies on visual interpretation, making it not only time-consuming but also less reproducible. OBJECITVE In this paper, we propose a new method to automatically identify angiographic image frames associated with the ED and ES cardiac phases.METHOD:
A detection algorithm is first used to detect the key points (i.e. landmarks) of coronary arteries, and then an optical flow method is employed to track the trajectories of the selected key points. The ED and ES frames are identified based on all these trajectories. Our method was tested with 62 ICA videos from two separate medical centers.RESULTS:
Comparing consensus interpretations by two human expert readers, excellent agreement was achieved by the proposed algorithm the agreement rates within a one-frame range were 92.99% and 92.73% for the automatic identification of the ED and ES image frames, respectively.CONCLUSION:
The proposed automated method showed great potential for being an integral part of automated ICA image analysis.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Processamento de Imagem Assistida por Computador
/
Coração
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article