Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences
Recent reports have shown that the carotid artery wall had significant movements not only in the radial but also in the longitudinal direction during the cardiac cycle. Accordingly, the idea that longitudinal elongations could be systematically neglected for compliance estimations became controversi...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09673334_v36_n3_p397_Pascaner http://hdl.handle.net/20.500.12110/paper_09673334_v36_n3_p397_Pascaner |
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paper:paper_09673334_v36_n3_p397_Pascaner2023-06-08T15:58:47Z Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences arterial stiffness carotid artery compressibility cross-sectional compliance distensibility arterial wall thickness automated pattern recognition carotid artery echography female human male middle aged organ size young adult Carotid Arteries Carotid Intima-Media Thickness Female Humans Male Middle Aged Organ Size Pattern Recognition, Automated Young Adult Recent reports have shown that the carotid artery wall had significant movements not only in the radial but also in the longitudinal direction during the cardiac cycle. Accordingly, the idea that longitudinal elongations could be systematically neglected for compliance estimations became controversial. Assuming a dynamic change in vessel length, the standard measurement of cross-sectional compliance can be revised. In this work, we propose to estimate a volumetric compliance based on continuous measurements of carotid diameter and intima-media thickness (IMT) from B-mode ultrasound sequences. Assuming the principle of conservation of the mass of wall volume (compressibility equals zero), a temporal longitudinal elongation can be calculated to estimate a volumetric compliance. Moreover, elongations can also be estimated allowing small compressibility factors to model some wall leakage. The cross-sectional and the volumetric compliance were estimated in 45 healthy volunteers and 19 asymptomatic patients. The standard measurement underestimated the volumetric compliance by 25% for young volunteers (p<0.01) and 17% for patients (p<0.05). When compressibility factors different from zero were allowed, volunteers and patients reached values of 9% and 4%, respectively. We conclude that a simultaneous assessment of carotid diameter and IMT can be employed to estimate a volumetric compliance incorporating a longitudinal elongation. The cross-sectional compliance, that neglects the change in vessel length, underestimates the volumetric compliance. © 2015 Institute of Physics and Engineering in Medicine. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09673334_v36_n3_p397_Pascaner http://hdl.handle.net/20.500.12110/paper_09673334_v36_n3_p397_Pascaner |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
arterial stiffness carotid artery compressibility cross-sectional compliance distensibility arterial wall thickness automated pattern recognition carotid artery echography female human male middle aged organ size young adult Carotid Arteries Carotid Intima-Media Thickness Female Humans Male Middle Aged Organ Size Pattern Recognition, Automated Young Adult |
| spellingShingle |
arterial stiffness carotid artery compressibility cross-sectional compliance distensibility arterial wall thickness automated pattern recognition carotid artery echography female human male middle aged organ size young adult Carotid Arteries Carotid Intima-Media Thickness Female Humans Male Middle Aged Organ Size Pattern Recognition, Automated Young Adult Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| topic_facet |
arterial stiffness carotid artery compressibility cross-sectional compliance distensibility arterial wall thickness automated pattern recognition carotid artery echography female human male middle aged organ size young adult Carotid Arteries Carotid Intima-Media Thickness Female Humans Male Middle Aged Organ Size Pattern Recognition, Automated Young Adult |
| description |
Recent reports have shown that the carotid artery wall had significant movements not only in the radial but also in the longitudinal direction during the cardiac cycle. Accordingly, the idea that longitudinal elongations could be systematically neglected for compliance estimations became controversial. Assuming a dynamic change in vessel length, the standard measurement of cross-sectional compliance can be revised. In this work, we propose to estimate a volumetric compliance based on continuous measurements of carotid diameter and intima-media thickness (IMT) from B-mode ultrasound sequences. Assuming the principle of conservation of the mass of wall volume (compressibility equals zero), a temporal longitudinal elongation can be calculated to estimate a volumetric compliance. Moreover, elongations can also be estimated allowing small compressibility factors to model some wall leakage. The cross-sectional and the volumetric compliance were estimated in 45 healthy volunteers and 19 asymptomatic patients. The standard measurement underestimated the volumetric compliance by 25% for young volunteers (p<0.01) and 17% for patients (p<0.05). When compressibility factors different from zero were allowed, volunteers and patients reached values of 9% and 4%, respectively. We conclude that a simultaneous assessment of carotid diameter and IMT can be employed to estimate a volumetric compliance incorporating a longitudinal elongation. The cross-sectional compliance, that neglects the change in vessel length, underestimates the volumetric compliance. © 2015 Institute of Physics and Engineering in Medicine. |
| title |
Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| title_short |
Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| title_full |
Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| title_fullStr |
Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| title_full_unstemmed |
Continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using B-mode ultrasound sequences |
| title_sort |
continuous assessment of carotid intima-media thickness applied to estimate a volumetric compliance using b-mode ultrasound sequences |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09673334_v36_n3_p397_Pascaner http://hdl.handle.net/20.500.12110/paper_09673334_v36_n3_p397_Pascaner |
| _version_ |
1768541946859487232 |