Results 51 to 60 of about 396,810 (295)

Blood flow in cerebral aneurysms : comparison among 4D flow guided-CDF, FSI and 3D variational data assimilation [PDF]

, 2021
LAUREA MAGISTRALELa rottura degli aneurismi intracranici è la principale causa di emorragia subaracnoidea, un’emergenza neurovascolare con elevata mortalità.
MUNAFÒ, RICCARDO
core  

Quantification and visualization of cardiovascular 4D velocity mapping accelerated with parallel imaging or k-t BLAST: head to head comparison and validation at 1.5 T and 3 T

Journal of Cardiovascular Magnetic Resonance, 2011
Background Three-dimensional time-resolved (4D) phase-contrast (PC) CMR can visualize and quantify cardiovascular flow but is hampered by long acquisition times.
Ståhlberg Freddy, Bloch Karin, Kanski Mikael, Töger Johannes, Carlsson Marcus, Heiberg Einar, Arheden Håkan   +6 more
doaj   +1 more source

Right and left ventricular function and flow quantification in pediatric patients with repaired tetralogy of Fallot using four-dimensional flow magnetic resonance imaging

BMC Medical Imaging, 2021
Background To assess the accuracy and reproducibility of right ventricular (RV) and left ventricular (LV) function and flow measurements in children with repaired tetralogy of Fallot (rTOF) using four-dimensional (4D) flow, compared with conventional two-
Xiaofen Yao, Liwei Hu, Yafeng Peng, Fei Feng, Rongzhen Ouyang, Weihui Xie, Qian Wang, Aimin Sun, Yumin Zhong   +8 more
doaj   +1 more source

Left atrium 4D-flow segmentation with high-resolution contrast-enhanced magnetic resonance angiography

Frontiers in Cardiovascular Medicine, 2023
BackgroundAtrial fibrillation (AF) leads to intracardiac thrombus and an associated risk of stroke. Phase-contrast cardiovascular magnetic resonance (CMR) with flow-encoding in all three spatial directions (4D-flow) provides a time-resolved 3D volume ...
Hansuk Kim, Hansuk Kim, Hansuk Kim, Stephen B. Wilton, Stephen B. Wilton, Julio Garcia, Julio Garcia, Julio Garcia, Julio Garcia, Julio Garcia   +9 more
doaj   +1 more source

Comparison of free-running whole-heart five-dimensional and four-dimensional flow imaging to standard two-dimensional flow in patients with congenital heart disease

Journal of Cardiovascular Magnetic Resonance
Background: Flow quantification by cardiovascular magnetic resonance (CMR) is essential for diagnosis-making and follow-up in patients with congenital heart disease (CHD).
Fabienne Dirbach, Estelle Tenisch, Milan Prša, Christopher W. Roy, Sara Fässler, Paolo Garelli, David Rodrigues, Mariana B.L. Falcão, Michael Markl, Matthias Stuber, Jürg Schwitter, Tobias Rutz   +11 more
doaj   +1 more source

The impact of 4D-Flow MRI spatial resolution on patient-specific CFD simulations of the thoracic aorta

Scientific Reports, 2022
Magnetic Resonance Imaging (MRI) is considered the gold standard of medical imaging technologies as it allows for accurate imaging of blood vessels. 4-Dimensional Flow Magnetic Resonance Imaging (4D-Flow MRI) is built on conventional MRI, and provides ...
Molly Cherry, Zinedine Khatir, Amirul Khan, Malenka Bissell   +3 more
doaj   +1 more source

Peak flow measurements in patients with severe aortic stenosis: a prospective comparative study between cardiovascular magnetic resonance 2D and 4D flow and transthoracic echocardiography

Journal of Cardiovascular Magnetic Resonance, 2021
Background Aortic valve stenosis (AS) is the most prevalent valvular disease in the developed countries. Four-dimensional (4D) flow cardiovascular magnetic resonance (CMR) is an emerging imaging technique, which has been suggested to improve the ...
Reetta Hälvä, Satu M. Vaara, Juha I. Peltonen, Touko T. Kaasalainen, Miia Holmström, Jyri Lommi, Satu Suihko, Helena Rajala, Minna Kylmälä, Sari Kivistö, Suvi Syväranta   +10 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Four-dimensional flow cardiac magnetic resonance assessment of left ventricular diastolic function

Frontiers in Cardiovascular Medicine, 2022
Left ventricular diastolic dysfunction is a major cause of heart failure and carries a poor prognosis. Assessment of left ventricular diastolic function however remains challenging for both echocardiography and conventional phase contrast cardiac ...
Zakariye Ashkir, Saul Myerson, Stefan Neubauer, Carl-Johan Carlhäll, Carl-Johan Carlhäll, Carl-Johan Carlhäll, Tino Ebbers, Tino Ebbers, Betty Raman   +8 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source