Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches

A growing body of research in retinal imaging is recently considering vascular tortuosity measures or indexes, with definitions and methods mostly derived from cardiovascular research. However, retinal microvasculature has its own peculiarities that must be considered in order to produce reliable me...

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Autores principales:	Francesco Martelli, Claudia Giacomozzi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	optical coherence tomography vessel tortuosity biomedical image processing Information technology T58.5-58.64
Acceso en línea:	https://doaj.org/article/a22c23997ccb43198cd5b49efae34772
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spelling	oai:doaj.org-article:a22c23997ccb43198cd5b49efae347722021-11-25T17:58:35ZTortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches10.3390/info121104662078-2489https://doaj.org/article/a22c23997ccb43198cd5b49efae347722021-11-01T00:00:00Zhttps://www.mdpi.com/2078-2489/12/11/466https://doaj.org/toc/2078-2489A growing body of research in retinal imaging is recently considering vascular tortuosity measures or indexes, with definitions and methods mostly derived from cardiovascular research. However, retinal microvasculature has its own peculiarities that must be considered in order to produce reliable measurements. This study analyzed and compared various derived metrics (e.g., TI, TI_avg, TICV) across four existing computational workflows. Specifically, the implementation of the models on two critical OCT images highlighted main pitfalls of the methods, which may fail in reliably differentiating a highly tortuous image from a normal one. A tentative, encouraging approach to mitigate the issue on the same OCT exemplificative images is described in the paper, based on the suggested index TICV.Francesco MartelliClaudia GiacomozziMDPI AGarticleoptical coherence tomographyvessel tortuositybiomedical image processingInformation technologyT58.5-58.64ENInformation, Vol 12, Iss 466, p 466 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	optical coherence tomography vessel tortuosity biomedical image processing Information technology T58.5-58.64
spellingShingle	optical coherence tomography vessel tortuosity biomedical image processing Information technology T58.5-58.64 Francesco Martelli Claudia Giacomozzi Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
description	A growing body of research in retinal imaging is recently considering vascular tortuosity measures or indexes, with definitions and methods mostly derived from cardiovascular research. However, retinal microvasculature has its own peculiarities that must be considered in order to produce reliable measurements. This study analyzed and compared various derived metrics (e.g., TI, TI_avg, TICV) across four existing computational workflows. Specifically, the implementation of the models on two critical OCT images highlighted main pitfalls of the methods, which may fail in reliably differentiating a highly tortuous image from a normal one. A tentative, encouraging approach to mitigate the issue on the same OCT exemplificative images is described in the paper, based on the suggested index TICV.
format	article
author	Francesco Martelli Claudia Giacomozzi
author_facet	Francesco Martelli Claudia Giacomozzi
author_sort	Francesco Martelli
title	Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
title_short	Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
title_full	Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
title_fullStr	Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
title_full_unstemmed	Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches
title_sort	tortuosity index calculations in retinal images: some criticalities arising from commonly used approaches
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a22c23997ccb43198cd5b49efae34772
work_keys_str_mv	AT francescomartelli tortuosityindexcalculationsinretinalimagessomecriticalitiesarisingfromcommonlyusedapproaches AT claudiagiacomozzi tortuosityindexcalculationsinretinalimagessomecriticalitiesarisingfromcommonlyusedapproaches
_version_	1718411763867713536

Tortuosity Index Calculations in Retinal Images: Some Criticalities Arising from Commonly Used Approaches

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