Accurate quantitative measurements of brachial artery cross-sectional vascular area and vascular volume elastic modulus using automated oscillometric measurements: comparison with brachial artery ultrasound
| Autor: | Mutumi Nishida, Chietsugu Katoh, Kumi Aziki, Tatsunori Horie, Nagara Tamaki, Noriki Ochi, Mamiko Inoue, Keiichiro Yoshinaga, Satoshi Fujii, Yuuki Tomiyama |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male Aging medicine.medical_specialty Brachial Artery Physiology Intraclass correlation Vasodilator Agents Vascular volume oscillometric Nitroglycerin medicine.artery Elastic Modulus Oscillometry Image Processing Computer-Assisted Pressure Internal Medicine medicine Humans Brachial artery Elastic modulus Ultrasonography Reproducibility Anatomy Cross-Sectional business.industry ultrasound Ultrasound Reproducibility of Results Middle Aged Surgery Vasodilation cross-sectional area Muscular artery Original Article elasticity Female Cardiology and Cardiovascular Medicine business Nuclear medicine |
| Zdroj: | Hypertension Research |
| ISSN: | 0916-9636 |
| Popis: | Increasing vascular diameter and attenuated vascular elasticity may be reliable markers for atherosclerotic risk assessment. However, previous measurements have been complex, operator-dependent or invasive. Recently, we developed a new automated oscillometric method to measure a brachial artery's estimated area (eA) and volume elastic modulus (VE). The aim of this study was to investigate the reliability of new automated oscillometric measurement of eA and VE. Rest eA and VE were measured using the recently developed automated detector with the oscillometric method. eA was estimated using pressure/volume curves and VE was defined as follows (VE=Δ pressure/ (100 × Δ area/area) mm Hg/%). Sixteen volunteers (age 35.2±13.1 years) underwent the oscillometric measurements and brachial ultrasound at rest and under nitroglycerin (NTG) administration. Oscillometric measurement was performed twice on different days. The rest eA correlated with ultrasound-measured brachial artery area (r=0.77, P |
| Databáze: | OpenAIRE |
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