Results 251 to 260 of about 4,485,922 (287)

The feasibility for dicrotic augmentation index to replace tidal augmentation index

2014 IEEE International Conference on Information and Automation (ICIA), 2014
Aortic augmentation index (AI) has great significance in predicting cardiovascular diseases. To obtain AI the tidal wave crest will be need, which is difficult to identify sometimes. Fortunately, it is easier to obtain the dicrotic wave crest, which can derive a parameter called dicrotic augmentation index (DAI).
Yingfei Su, Yahui Zhang, Yueming Jin, Yang Yao 0001, Ruifeng Zhang, Yongsheng Jiang, Lisheng Xu   +6 more
openaire   +1 more source

A Rate Index for Augmentative and Alternative Communication

International Journal of Speech Technology, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Katya Hill, Barry Romich
openaire   +1 more source

Augmented Zagreb index

Journal of Mathematical Chemistry, 2010
Inspired by recent work on the atom-bond connectivity (ABC) index we proposed a new topological index, augmented Zagreb index (AZI). The tight upper and lower bounds of AZI for chemical trees are obtained. Moreover, it has been shown that among all trees the star has the minumum AZI value.
Furtula, Boris, Graovac, Ante, Vukičević, Damir   +2 more
openaire   +1 more source

Ethnic Differences in Arterial Wave Reflections and Normative Equations for Augmentation Index

Hypertension, 2011
Data regarding ethnic differences in wave reflections, which markedly affect the central pressure profile, are very limited. Furthermore, because age, heart rate, and body height are strong determinants of augmentation index, relating single measurements
Gavin R Norton, Ji-Guang Wang, Julio A Chirinos   +2 more
exaly   +2 more sources

Augmentation index is associated with cardiovascular risk

Journal of Hypertension, 2002
Augmentation index is a parameter measured by pulse wave analysis (PWA) and is used as a surrogate measure of arterial stiffness. The aim of this study was to assess whether augmentation index is associated with cardiovascular risk, as well as to evaluate whether the determinants of augmentation index are different in patients with cardiovascular ...
Jens, Nürnberger, Ayten, Keflioglu-Scheiber, Anabelle M, Opazo Saez, Rene R, Wenzel, Thomas, Philipp, Rafael F, Schäfers   +5 more
openaire   +2 more sources

Augmentation index in resistance to thyroid hormone (RTH)

Clinical Endocrinology, 2009
SummaryObjective  Resistance to thyroid hormone (RTH) is associated with a varied clinical presentation. The cardiac effects of RTH have been described but vascular function has yet to be fully evaluated in this condition. We have measured the arterial function of those with RTH to assess any vascular changes.Design  An observational study.Patients ...
P J D, Owen, V K, Chatterjee, R, John, D, Halsall, J H, Lazarus   +4 more
openaire   +2 more sources

Augmentation Index Is Elevated in Aortic Aneurysm and Dissection

The Annals of Thoracic Surgery, 2009
The augmentation index, the ratio of the ejection pressure from the heart to the reflection pressure from the arterial system, has recently been recognized as one of the indexes of left ventricular afterload. We studied it in patients with aortic aneurysm and dissection, using carotid artery diameter waveform obtained from an echo-tracking system.Forty-
Yasushige, Shingu, Norihiko, Shiiya, Tomonori, Ooka, Tsuyoshi, Tachibana, Suguru, Kubota, Satoshi, Morita, Yoshiro, Matsui   +6 more
openaire   +2 more sources

Augmented Velocity Index: A New Doppler Index Associated with Arterial Stiffness

Ultrasound in Medicine & Biology, 2019
Augmented Velocity Index (Avi) is a new Doppler index developed to quantify velocity changes at the late systolic peak. We examined its reliability, association with arterial stiffness and cardiovascular risk factors. The Avi is calculated as (late systolic peak velocity - early systolic peak velocity)/(highest peak systolic velocity - end-diastolic ...
Kin Hung Liu, Winnie C. Chu, Alice Pik Shan Kong, Lai Yuk Yuen, Ling Chen, Ming Chung Lee, Rubee Pui Man Lau, Wing Hung Tam, Juliana Chung Ngor Chan, Anil T. Ahujja   +9 more
openaire   +2 more sources

Prediction of central Augmentation Index in healthy adults

The Journal of Sports Medicine and Physical Fitness
Central Augmentation Index (AIx) is a surrogate marker of large artery stiffness that may provide valuable insight to cardiovascular health. The aim of this study was to evaluate the relationship between AIx and components of physical fitness.One hundred eighty-five healthy men and women (aged 20-79 years) underwent non-invasive assessment of arterial ...
Devon A, Dobrosielski, Hannah A, Zabriskie, Kathleen, Dondero, Brenna, Baus, Justin, Updegraff, Rian Q, Landers-Ramos   +5 more
openaire   +2 more sources

Reflections on determinants of augmentation index

Journal of Hypertension, 2012
Alberto, Avolio, Mark, Butlin, Ke, Xu
openaire   +2 more sources