Asset Details
Do you wish to reserve the book?
Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects
Do you wish to request the book?
Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects
2021
Overview
Ballistocardiography (BCG) and Seismocardiography (SCG) assess the vibrations produced by cardiac contraction and blood flow, respectively, by means of micro-accelerometers and micro-gyroscopes. From the BCG and SCG signals, maximal velocities (V
Max
), integral of kinetic energy (
i
K), and maximal power (P
Max
) can be computed as scalar parameters, both in linear and rotational dimensions. Standard echocardiography and 2-dimensional speckle tracking imaging echocardiography were performed on 34 healthy volunteers who were infused with increasing doses of dobutamine (5–10–20 μg/kg/min). Linear V
Max
of BCG predicts the rates of left ventricular (LV) twisting and untwisting (both
p
<
0.0001
). The linear P
Max
of both SCG and BCG and the linear
i
K of BCG are the best predictors of the LV ejection fraction (LVEF) (
p
<
0.0001
). This result is further confirmed by mathematical models combining the metrics from SCG and BCG signals with heart rate, in which both linear P
Max
and
i
K strongly correlate with LVEF (R = 0.7,
p
<
0.0001
). In this setting of enhanced inotropism, the linear V
Max
of BCG, rather than the V
Max
of SCG, is the metric which best explains the LV twist mechanics, in particular the rates of twisting and untwisting. P
Max
and
i
K metrics are strongly associated with the LVEF and account for 50% of the variance of the LVEF.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 692/4019
/ Adult
/ Bacillus Calmette-Guerin vaccine
/ Ballistocardiography - methods
/ BCG
/ Cardiotonic Agents - administration & dosage
/ Dobutamine - administration & dosage
/ Female
/ Heart Ventricles - physiopathology
/ Humanities and Social Sciences
/ Humans
/ Male
/ Microelectromechanical systems
/ Randomized Controlled Trials as Topic
/ Science
/ Velocity
