BLAHUTA, Jiří a Tomáš SOUKUP. 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. In Brejová, Broňa; Ciencialová, Lucie; Holeňa, Martin; Mráz, František; Prdubská, Dana; Plátek, Martin; Vinař, Tomáš. Proceedings of the 21st Conference Information Technologies – Applications and Theory (ITAT 2021). Volume 2962. Slovensko: CEUR Workshop Proceedings, 2021. s. 182-187. ISSN 1613-0073.
Další formáty:   BibTeX LaTeX RIS
Základní údaje
Originální název 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
Autoři BLAHUTA, Jiří (203 Česká republika, garant, domácí) a Tomáš SOUKUP (203 Česká republika).
Vydání Volume 2962. Slovensko, Proceedings of the 21st Conference Information Technologies – Applications and Theory (ITAT 2021), od s. 182-187, 6 s. 2021.
Nakladatel CEUR Workshop Proceedings
Další údaje
Originální jazyk angličtina
Typ výsledku Stať ve sborníku
Obor 20600 2.6 Medical engineering
Stát vydavatele Slovensko
Utajení není předmětem státního či obchodního tajemství
Forma vydání elektronická verze "online"
WWW Plný text konferenčního příspěvku
Organizační jednotka Filozoficko-přírodovědecká fakulta v Opavě
ISSN 1613-0073
Klíčová slova anglicky Image analysis; Image segmentation; Magnetic resonance imaging; Medical Imaging; Ultrasonics
Štítky HRAWARDS, RESTART, SGS112019, ÚI
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnil: Mgr. Kamil Matula, Ph.D., učo 7389. Změněno: 16. 12. 2021 17:31.
Anotace
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 < 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 %.
VytisknoutZobrazeno: 29. 1. 2022 15:04