http://www.cnr.it/ontology/cnr/individuo/prodotto/ID23929
A System for Real-Time Measurement of the Brachial Artery Diameter in B-Mode Ultrasound Images (Articolo in rivista)
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- Label
- A System for Real-Time Measurement of the Brachial Artery Diameter in B-Mode Ultrasound Images (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gemignani V.; Faita F.; Ghiadoni L.; Poggianti E.; Demi M. (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- In: IEEE Transactions on Medical Imaging, vol. 26 (3) pp. 393 - 404. IEEE Engineering in Medicine and Biology Society, 2007. (literal)
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- Google Scholar (literal)
- ISI Web of Science (WOS) (literal)
- PubMed (literal)
- Scopus (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR, Inst Clin Physiol, I-56124 Pisa, Italy
Univ Pisa, Dept Internal Med, I-56126 Pisa, Italy
Esaote SpA, I-16153 Genoa, Italy (literal)
- Titolo
- A System for Real-Time Measurement of the Brachial Artery Diameter in B-Mode Ultrasound Images (literal)
- Abstract
- The measurement of the brachial artery diameter is frequently used in clinical studies for evaluating the flow-mediated dilation and, in conjunction with the blood pressure value, for assessing arterial stiffness. This paper presents a system for computing the brachial artery diameter in real-time by analyzing B-mode ultrasound images. The method is based on a robust edge detection algorithm which is used to automatically locate the two walls of the vessel. The measure of the diameter is obtained with subpixel precision and with a temporal resolution of 25 samples/s, so that the small dilations induced by the cardiac cycle can also be retrieved. The algorithm is implemented on a standalone video processing board which acquires the analog video signal from the ultrasound equipment. Results are shown in real-time on a graphical user interface. The system was tested both on synthetic ultrasound images and in clinical studies of flow-mediated dilation. Accuracy, robustness, and intra/inter observer variability of the method were evaluated. (literal)
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