scholarly journals Estimation of pulse wave velocity in main pulmonary artery with phase contrast MRI: Preliminary investigation

2006 ◽  
Vol 24 (6) ◽  
pp. 1303-1310 ◽  
Author(s):  
Hsu-Hsia Peng ◽  
Hsiao-Wen Chung ◽  
Hsi-Yu Yu ◽  
Wen-Yih I. Tseng
Keyword(s):  
Pulmonary Artery ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Phase Contrast ◽  
Pulse Wave ◽  
Preliminary Investigation ◽  
Main Pulmonary Artery ◽  
Phase Contrast Mri

Assessment of carotid stiffness by measuring carotid pulse wave velocity using a single‐slice oblique‐sagittal phase‐contrast MRI

2021 ◽  
Author(s):  
Soroush Heidari Pahlavian ◽  
Steven Yong Cen ◽  
Xiaoming Bi ◽  
Danny J. J. Wang ◽  
Helena Chang Chui ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Phase Contrast ◽  
Pulse Wave ◽  
Phase Contrast Mri ◽  
Single Slice ◽  
Carotid Stiffness

Approaches for the Estimation of Pulse Wave Velocity in the Spinal Canal

2009 ◽  
Vol 2 (1) ◽  
Author(s):  
E. LeMaster ◽  
S. Lee ◽  
N. Alperin
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Spinal Canal ◽  
Time Delays ◽  
Phase Contrast ◽  
Pulse Wave ◽  
Preliminary Investigation ◽  
Brain Disorder ◽  
Different Types ◽  
Contrast Magnetic Resonance

This pilot study describes approaches for the estimation of the pulse wave velocity (PWV) of cerebrospinal fluid (CSF) in the upper spinal canal. The movement of CSF was non-invasively measured using phase-contrast magnetic resonance imaging (PCMRI) technique. Two main approaches were used to calculate PWV. The approaches relied on different types of images: sagittal and axial images. For the method using axial images, the PWV was calculated using four different time delays. This preliminary investigation indicated that the most reliable method used axial images and the waveforms' onset times to calculate PWV. CSF's PWV may be of importance in a condition known as Chiari Malformation (CM), a brain disorder in which the cerebral tonsils herniate into the spinal canal. The present study investigated the PWV of CSF in five healthy volunteers compared to that of five symptomatic CM patients.

scholarly journals Quantification of aortic pulse wave velocity in preterm infants using 4D phase contrast MRI

2013 ◽  
Vol 15 (S1) ◽  
Author(s):  
Kathryn Broadhouse ◽  
Anthony N Price ◽  
Giuliana Durighel ◽  
Anna Finnemore ◽  
David J Cox ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Preterm Infants ◽  
Wave Velocity ◽  
Phase Contrast ◽  
Pulse Wave ◽  
Aortic Pulse Wave Velocity ◽  
Phase Contrast Mri

OR-04 IMPORTANCE OF TIME DELAY ESTIMATION METHODS FOR AORTIC PULSE WAVE VELOCITY ASSESSMENT WITH PHASE-CONTRAST MRI

2014 ◽  
Vol 8 (4) ◽  
pp. 165
Author(s):  
Priyanka Bhattacharya ◽  
Chandrahasa Sharabu ◽  
Deepa Rawat ◽  
Scott Akers ◽  
Anjaneyulu Dunde ◽  
...  
Keyword(s):  
Time Delay ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Phase Contrast ◽  
Pulse Wave ◽  
Aortic Pulse Wave Velocity ◽  
Time Delay Estimation ◽  
Delay Estimation ◽  
Estimation Methods ◽  
Phase Contrast Mri

Development of a technique for determination of pulmonary artery pulse wave velocity in horses

2017 ◽  
Vol 122 (5) ◽  
pp. 1088-1094 ◽  
Author(s):  
Gonçalo Teixeira de Almeida Silva ◽  
Bruce B. Guest ◽  
Diego E. Gomez ◽  
Martine McGregor ◽  
Laurent Viel ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Pulmonary Arteries ◽  
Tunica Media ◽  
Potential Association ◽  
The Mean ◽  
Circulatory Disorders

Calcification of the tunica media of the axial pulmonary arteries (PA) has been reported in a large proportion of racehorses. In humans, medial calcification is a significant cause of arterial stiffening and is implicated in the pathogenesis of cardiac, cerebral, and renal microvascular diseases. Pulse wave velocity (PWV) provides a measure of arterial stiffness. This study aimed to develop a technique to determine PA-PWV in horses and, secondarily, to investigate a potential association between PA-PWV and arterial fibro-calcification. A dual-pressure sensor catheter (PSC) was placed in the main PA of 10 sedated horses. The pressure waves were used to determine PWV along the PA, using the statistical phase offset method. Histological analysis of the PA was performed to investigate the presence of fibro-calcified lesions. The mean (±SD) PWV was 2.3 ± 0.7 m/s in the proximal PA trunk and 1.1 ± 0.1 m/s further distal (15 cm) in a main PA branch. The mean (±SD) of mean arterial pressures in the proximal PA trunk was 30.1 ± 5.2 mmHg, and 22.0 ± 6.0 mmHg further distal (15 cm) within the main PA branch. The mean (±SD) pulse pressure in the proximal PA trunk was 15.0 ± 4.7 mmHg, and 13.5 ± 3.3 mmHg further distal (15 cm) within the main PA branch. Moderate to severe lesions of the tunica media of the PAs were observed in seven horses, but a correlation with PWV could not be established yet. Pulmonary artery PWV may be determined in standing horses. The technique described may allow further investigation of the effect of calcification of large PAs in the pathogenesis of equine pulmonary circulatory disorders. NEW & NOTEWORTHY Pulmonary artery pulse wave velocity was determined safely in standing sedated horses. The technique described may allow further investigation of the effect of calcification of large pulmonary arteries in the pathogenesis of pulmonary circulatory disorders in horses.

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