Brightness levels in MRI should correspond with echogenicity grade in ultrasound B-MODE images: A pilot study of reproducibility using ROI-based measurement between two blind observers

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Brightness levels in MRI should correspond with echogenicity grade in ultrasound B-MODE images: A pilot study of reproducibility using ROI-based measurement between two blind observers

Popis výsledku v původním jazyce

In 2011, we developed a software tool to analysis of the echogenicity level in ultrasound B-MODE images. This software is based on binary thresholding in a predefined Region of Interest (ROI). The goal of this paper is to observe if the echogenicity grade in B-MODE images corresponds with brightness level in MR images using the echogenicity index. Achieved results obtained by two, non-experienced observers in radiology, shows the software can be used also for MRI images. The reproducibility of the measurement evinces the high level of agreement. We use three ROI areas for which the exact position in MR image is not important at this moment. Totally of 52 images were analyzed. Achieved results show the error between measurements by two non-experienced observers does not exceed 5 %; calculated based on the range of the measurements and computed average difference for each image set. Thus, the echogenicity index can be considered as reproducible marker; a small shift of the ROI does not evince significant change. Average range of the index is computed from 28.17 up to 67.95; minimal index value was &lt; 20 and the highest value was 101.2 due to different brightness level in the examined ROI. The range for the same ROI are almost equal, the difference does not exceed 2 %.

Název v anglickém jazyce

Brightness levels in MRI should correspond with echogenicity grade in ultrasound B-MODE images: A pilot study of reproducibility using ROI-based measurement between two blind observers

Popis výsledku anglicky

In 2011, we developed a software tool to analysis of the echogenicity level in ultrasound B-MODE images. This software is based on binary thresholding in a predefined Region of Interest (ROI). The goal of this paper is to observe if the echogenicity grade in B-MODE images corresponds with brightness level in MR images using the echogenicity index. Achieved results obtained by two, non-experienced observers in radiology, shows the software can be used also for MRI images. The reproducibility of the measurement evinces the high level of agreement. We use three ROI areas for which the exact position in MR image is not important at this moment. Totally of 52 images were analyzed. Achieved results show the error between measurements by two non-experienced observers does not exceed 5 %; calculated based on the range of the measurements and computed average difference for each image set. Thus, the echogenicity index can be considered as reproducible marker; a small shift of the ROI does not evince significant change. Average range of the index is computed from 28.17 up to 67.95; minimal index value was &lt; 20 and the highest value was 101.2 due to different brightness level in the examined ROI. The range for the same ROI are almost equal, the difference does not exceed 2 %.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20600 - Medical engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 21st Conference Information Technologies – Applications and Theory (ITAT 2021)

ISBN

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ISSN

1613-0073

e-ISSN

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Počet stran výsledku

6

Strana od-do

182-187

Název nakladatele

CEUR Workshop Proceedings

Místo vydání

Slovensko

Místo konání akce

Nízké Tatry and Muránska planina, Slovakia

Datum konání akce

24. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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