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Journal of Medical Systems

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01.06.2016 | Transactional Processing Systems

A Computer-Aided Diagnosis System for Measuring Carotid Artery Intima-Media Thickness (IMT) Using Quaternion Vectors

verfasst von: Uğurhan Kutbay, Fırat Hardalaç, Mehmet Akbulut, Ünsal Akaslan, Selami Serhatlıoğlu

Erschienen in: Journal of Medical Systems | Ausgabe 6/2016

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Abstract

This study aims investigating adjustable distant fuzzy c-means segmentation on carotid Doppler images, as well as quaternion-based convolution filters and saliency mapping procedures. We developed imaging software that will simplify the measurement of carotid artery intima-media thickness (IMT) on saliency mapping images. Additionally, specialists evaluated the present images and compared them with saliency mapping images. In the present research, we conducted imaging studies of 25 carotid Doppler images obtained by the Department of Cardiology at Fırat University. After implementing fuzzy c-means segmentation and quaternion-based convolution on all Doppler images, we obtained a model that can be analyzed easily by the doctors using a bottom-up saliency model. These methods were applied to 25 carotid Doppler images and then interpreted by specialists. In the present study, we used color-filtering methods to obtain carotid color images. Saliency mapping was performed on the obtained images, and the carotid artery IMT was detected and interpreted on the obtained images from both methods and the raw images are shown in Results. Also these results were investigated by using Mean Square Error (MSE) for the raw IMT images and the method which gives the best performance is the Quaternion Based Saliency Mapping (QBSM). 0,0014 and 0,000191 mm² MSEs were obtained for artery lumen diameters and plaque diameters in carotid arteries respectively. We found that computer-based image processing methods used on carotid Doppler could aid doctors’ in their decision-making process. We developed software that could ease the process of measuring carotid IMT for cardiologists and help them to evaluate their findings.

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Titel: A Computer-Aided Diagnosis System for Measuring Carotid Artery Intima-Media Thickness (IMT) Using Quaternion Vectors
verfasst von: Uğurhan Kutbay
Fırat Hardalaç
Mehmet Akbulut
Ünsal Akaslan
Selami Serhatlıoğlu
Publikationsdatum: 01.06.2016
Verlag: Springer US
Erschienen in: Journal of Medical Systems / Ausgabe 6/2016
Print ISSN: 0148-5598
Elektronische ISSN: 1573-689X
DOI: https://doi.org/10.1007/s10916-016-0507-4

Live-Webinar "Urologie und Sexualmedizin in der Praxis"

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A Computer-Aided Diagnosis System for Measuring Carotid Artery Intima-Media Thickness (IMT) Using Quaternion Vectors

Abstract

Live-Webinar "Urologie und Sexualmedizin in der Praxis"

Springer Medizin

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