Results 61 to 70 of about 70,280 (301)

Quantitative three-dimensional cardiovascular magnetic resonance myocardial perfusion imaging in systole and diastole [PDF]

, 2014
Background Two-dimensional (2D) perfusion cardiovascular magnetic resonance (CMR) remains limited by a lack of complete myocardial coverage. Three-dimensional (3D) perfusion CMR addresses this limitation and has recently been shown to be clinically ...
Kozerke, S., Greenwood, J.P., Motwani, Manish, Fairbairn, Timothy A, Uddin, Akhlaque, Sourbron, S., Fairbairn, Timothy A., Greenwood, John P, Motwani, M., Kidambi, A., Kidambi, Ananth, Plein, Sven, Greenwood, John P., Uddin, A., Sourbron, Steven, Fairbairn, T.A., Plein, S., Kozerke, Sebastian   +17 more
core   +1 more source

1‐D Collocated Dual‐Gradient Sensory Fibers for Comprehensive Sensing and Decoding of Complex Human Motion and Physiology

Advanced Materials, EarlyView.
Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee, Sungha Jeon, Min Kim, Joonhee Won, Jinwook Yeo, Kyunghyun Jo, Soyeon Lee, Kieun Park, Yechan Yang, Chul Kim, Gun‐Hee Lee, Seunghwa Ryu, Sungho Jo, Seongjun Park   +13 more
wiley   +1 more source

Cropped images for end-diastole frames of ten volunteers.

, 2014
Cropped images for end-diastole frames of ten volunteers.
Jun-Mei Zhang (550230), Liang Zhong (402998), Ru San Tan (89843), Min Wan (550231), Xiaodan Zhao (136112)   +4 more
core   +1 more source

Time related Characteristics of cardiac systole, diastole, baroreeeptor activity and inactivity during vagal stimulation and mild haemorrhage in the dog [PDF]

, 1990
The duration of cardiac systole and diastole in each individual cardiac cycle were measured from aortic pressure curves during vagal stimulation and mild haemorrhage with simultaneous recording of aortic baroreceptor single fibre nerve activity.
Hartikainen, Juha E.K., Sikanen, Antti E., Nevalainen, Timo O., Hakumäki, Martti O.K.   +3 more
core   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

Advanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin, Jimin Kim, Inho Kim, Bong Hoon Kim   +3 more
wiley   +1 more source

The value of exercise echocardiography in heart failure with preserved ejection fraction

Journal of Ultrasonography, 2019
Diastolic stress test is something that is now acknowledged in the recommendations and guidelines for diagnosing heart failure with preserved ejection fraction.
Erwan Donal
doaj   +1 more source

Mitochondrial Dysfunction Unravels the Potential Molecular Link Between Night Shift Work‐Related Circadian Disruption and Elevated Blood Pressure in Human and Mouse Models

Advanced Science, EarlyView.
This diagram illustrates that night shift work disrupts circadian clock genes (like CLOCK, BMAL1) in both humans and mice. This disruption leads to mitochondrial dysfunction (imbalanced fusion/fission proteins) and increased oxidative stress, which is identified as the primary mechanism ultimately causing elevated blood pressure.
Zhaoqiang Jiang, Yifan Dou, Yingnan Lei, Shuang Liu, Jialin Zhou, Jiaping Li, Huadong Xu, Lingfang Feng, Yongxin Li, Chuyan Zhang, Tao Li, Jianfei Wang, Xing Zhang, Xinran Wang, Luyao Liu, Jingjing Zhang, Jianlin Lou   +16 more
wiley   +1 more source

Reliability in Using Routine Coronary CT Angiography with Retrospective Electrocardiographic Gating for the Comprehensive Functional Evaluation of the Left Ventricle

대한영상의학회지, 2019
Purpose To evaluate the feasibility of comprehensive left ventricle (LV) functional parameters on routine coronary computed tomographic angiography (CCTA) based on two-dimensional echocardiography (2DE).
Eun-Ju Kang, Jihoon Hong, Jongmin Park, Jongmin Lee   +3 more
doaj   +1 more source

Cyclic Mechanical Loading of Cardiomyocytes via Pressure‐Driven Non‐Planar Membrane Deformation in a Bioreactor System

Advanced Science, EarlyView.
In this research article, Mansoor and coworkers present a novel device that applies controlled mechanical stimuli to cardiomyocytes using pressure‐driven membrane deformation. By exposing cells to physiologically and pathologically relevant loading conditions, the platform reproduces distinct structural, functional and molecular responses associated ...
Haris Mansoor, Gabrielle Juul, Jil Patel, Heran Pradhan, Gram Hepner, Jackson Jewell, Mark Bardin, Ryan Slusser, Abigail Glezer, Leda Klouda, Melikhan Tanyeri, Anita Saraf   +11 more
wiley   +1 more source

Ca2+/calmodulin‐dependent protein kinase II and protein kinase G independently contribute to acutely enhance myocardial compliance with stretch

Physiological Reports
The heart constantly adapts to acute hemodynamic load by increasing contractility and stretch‐induced compliance (SIC). The latter involves titin phosphorylation, notably by cGMP‐dependent protein kinase (PKG).
André M. Leite‐Moreira, João Almeida‐Coelho, Inês Falcão‐Pires, André P. Lourenço, Adelino F. Leite‐Moreira   +4 more
doaj   +1 more source