Results 91 to 100 of about 3,424,288 (235)

Evaluation of Cardiac Motion and Function by Cine Magnetic Resonance Imaging.

Japanese Circulation Journal, 1992
Cardiac cine magnetic resonance imaging (MRI) was studied to evaluated the cardiac motion and function, and a water-stream phantom study was performed to clarify whether it was possible to quantitatively assess the valvular regurgitation flow by the size of the flow void.
KONDO, TAKESHI, KUROKAWA, HIROSHI, ANNO, HIROFUMI, OKAMURA, MASAHIRO, ANNO, NAOKO, SAKAKURA, KAZUYOSHI, TOKUDA, MAMORU, HISHIDA, HITOSHI, WATANABE, YOSHIHIKO, MIZUNO, YASUSHI, SUGIISHI, MUNETAKA   +10 more
openaire   +3 more sources

Navigating the Zero Fluoroscopy Frontier: Current Tools, Evidence and Future Directions in Electrophysiology Procedures

Pacing and Clinical Electrophysiology, EarlyView.
Graphical Abstract ABSTRACT Fluoroscopy has traditionally been the mainstay imaging technique for guidance during electrophysiology (EP) ablation procedures. The numerous disadvantages associated with radiation exposure for both operators and patients have created the need for zero‐fluoroscopy (ZF) approaches. Today, electrophysiologists have access to
Dimitrios Kotzadamis, Georgios Giannopoulos, Vaios Schismenos, Alexandros Evangeliou, Prokopios Mamolis, Antonios Antoniadis, Vassilios Vassilikos   +6 more
wiley   +1 more source

Role of Cine-Magnetic Resonance Imaging in the Assessment of Mediastinal Masses with Uncertain/Equivocal Findings from Pre-Operative Computed Tomography Scanning

Diagnostics
Background: Malignant neoplasms originating from or involving the mediastinum represent a diagnostic and therapeutic challenge when they are in contact with nearby cardiovascular structures.
Umberto Cariboni, Lorenzo Monti, Emanuele Voulaz, Efrem Civilini, Enrico Citterio, Costanza Lisi, Giuseppe Marulli   +6 more
doaj   +1 more source

3T MRI evaluation of regional catecholamine-producing tumor-induced myocardial injury

Endocrine Connections, 2019
Objective: Regional differences in cardiac magnetic resonance, which can reveal catecholamine-induced myocardial injury in patients with pheochromocytoma, have not yet been assessed using 3T magnetic resonance imaging.
Satoshi Higuchi, Hideki Ota, Takuya Ueda, Yuta Tezuka, Kei Omata, Yoshikiyo Ono, Ryo Morimoto, Masataka Kudo, Fumitoshi Satoh, Kei Takase   +9 more
doaj   +1 more source

Impaired Windkessel function and proximal aortic stiffness: Linking vascular ageing to cognitive decline

Experimental Physiology, EarlyView.
Abstract Central arterial stiffening, particularly of the proximal aorta, is increasingly recognised as a pivotal contributor to cardiovascular disease, dementia, and mild cognitive impairment. Loss of Windkessel function amplifies pulsatile pressure, reduces diastolic perfusion and accelerates microvascular damage in the brain.
Jun Sugawara, Hirofumi Tanaka
wiley   +1 more source

Methods for dichoptic stimulus presentation in functional magnetic resonance imaging - a review [PDF]

, 2009
Dichoptic stimuli (different stimuli displayed to each eye) are increasingly being used in functional brain imaging experiments using visual stimulation.
Choubey, Bhaskar, Sireteanu, Ruxandra (Prof. Dr.), Jurcoane, A., Sireteanu, R., Muckli, L., Muckli, Lars, Choubey, B., Sireteanu, Ruxandra, Jurcoane, Alina   +8 more
core   +1 more source

Translational Insights Into Myocardial Deformation and Fibrosis in Hypertrophic Cardiomyopathy Using Diffusion Tensor MRI

JACC: Advances
Background: Hypertrophic cardiomyopathy (HCM) diagnosis often occurs after myocardium thickening develops, delaying intervention. Cardiac diffusion tensor imaging (cDTI) detects microstructural myocardial remodeling, offering potential for improved risk ...
Oumaima Laghzali, MSc, Danielle Kara, PhD, Shi Chen, BS, Siqin Liu, MD, Shahriar Shalikar, MSc, Mara-Camelia Rusu, PhD, Fatimunnisa Qadri, PhD, Lucie Carrier, PhD, Hsin-Jung Yang, PhD, Thoralf Niendorf, PhD, Min-Chi Ku, PhD, Christopher Nguyen, PhD   +11 more
doaj   +1 more source

Mechanical pressure on endothelial cells mediates remote ischaemic preconditioning‐induced neuroprotection via miR‐126

Experimental Physiology, EarlyView.
Abstract Remote ischaemic preconditioning (RIPC) uses brief limb ischaemia to protect distant organs, but the mechanism of travel of the protective signal remains unclear. This study investigated whether endothelial cells (ECs) contribute to RIPC‐induced neuroprotection and the underlying mechanisms.
Xiaojie Wang, Lei Yan, Hongwei Zhu, Yifan Li, Qi Liu, Wei Li, Kerui Gong, Zhijun Zhao, Chunyang Zhang, Gang Fu, Guo Shao, Xunming Ji   +11 more
wiley   +1 more source

Functional imaging of plants: A nuclear magnetic resonance study of a cucumber plant [PDF]

, 2002
Functional magnetic resonance imaging was used to study transients of biophysical parameters in a cucumber plant in response to environmental changes. Detailed flow imaging experiments showed the location of xylem and phloem in the stem and the response ...
As, H., van, Scheenen, T., Heemskerk, A., Vergeldt, F.J., Jager, A., de   +4 more
core   +1 more source

Clinical experience with adaptive MRI-guided pancreatic SBRT and the use of abdominal compression to reduce treatment volume

Frontiers in Oncology
IntroductionThis work presents a method to treat stereotactic body radiation therapy (SBRT) for pancreatic cancer on a magnetic resonance-guided linear accelerator (MR-linac) using daily adaptation, real-time motion monitoring, and abdominal compression ...
William S. Ferris, Benjamin George, Kristin A. Plichta, Joseph M. Caster, Daniel E. Hyer, Blake R. Smith, Joel J. St-Aubin   +6 more
doaj   +1 more source