Accuracy and repeatability of Fourier velocity encoded M-mode and 2D cine phase contrast for pulse wave velocity measurement in the descending aorta
نویسندگان
چکیده
V. Taviani, A. J. Patterson, M. J. Graves, C. J. Hardy, P. W. Worters, M. P. Sutcliffe, and J. H. Gillard Department of Radiology, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom, GE Global Research, Niskayuna, New York, United States, Department of Radiology, Stanford University, Lucas Center, Stanford, California, United States, Department of Engineering, University of Cambridge, Cambridge, United Kingdom
منابع مشابه
Age-related changes of regional pulse wave velocity in the descending aorta using Fourier velocity encoded M-mode.
Aortic pulse wave velocity (PWV) is an independent determinant of cardiovascular risk. Although aortic stiffening with age is well documented, the interaction between aging and regional aortic PWV is still a debated question. We measured global and regional PWV in the descending aorta of 56 healthy subjects aged 25-76 years using a one-dimensional, interleaved, Fourier velocity encoded pulse se...
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Introduction: Pulse wave velocity (PWV) as a measure of aortic stiffness is an important clinical marker for the presence of atherosclerosis [1,2]. For PWV estimation using Phase contrast (PC) MRI transit-time (TT) methods have been employed which estimate temporal differences in flow waveforms between two locations in the vessel with known distance [3]. However, precision was limited by the ac...
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Methods 79 children with HLHS in Fontan circulation (6.3±3.2 years) and 18 controls (6.8±2.4 years) underwent 3.0 Tesla cardiovascular magnetic resonance imaging. Gradient-echo cine and phase-contrast imaging was applied to measure cross-sectional areas, distensibility and pulse wave velocity (PWV) of the entire thoracic aorta, particularly the DAo. Cross-sectional areas were compared with norm...
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Methods Consecutive patients recruited to the UK GCA Consortium study were invited. 49 patients (median disease duration 4.5 years) underwent CMR at 3.0T (Philips Achieva TX). Cine images were acquired to measure the diameter of the ascending aorta (AsAo) and descending aorta (DsAo) at the level of the main pulmonary artery (MPA) and aortic arch from luminal edge-to-edge. Aortic stiffness was a...
متن کاملThe relationship of age with regional aortic stiffness and diameter.
OBJECTIVES The purpose of this study was to determine the impact of age on regional aortic pulse wave velocity (aPWV). BACKGROUND aPWV is an independent predictor of cardiovascular risk and increases exponentially with age. However, it is unclear whether such changes occur uniformly along the length of the aorta or vary by region. METHODS A total of 162 subjects, aged 18 to 77 years and fre...
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