Results 41 to 50 of about 8,751,011 (252)

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Quantitative MRI Uncovers Subtle Cortical Damage in Myelin Oligodendrocyte Glycoprotein Antibody‐Associated Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether myelin‐sensitive quantitative MRI reveals microstructural abnormalities in normal‐appearing cortex (NACtx) in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), indicating that conventional MRI underestimates remission residual cortical injury.
Valentina Camera, Agnese Tamanti, Silvia Messina, Nicola Dall'Osto, Teresa Maltempo, Stefano Ziccardi, Matteo Foschi, Maria Grazia Piscaglia, Diana Ferraro, Francesco Crescenzo, Francesca Rossi, Albulena Bajrami, Sabrina Marangoni, Damiano Marastoni, Francesca Benedetta Pizzini, Maria Isabel Leite, Roberta Magliozzi, Patrick Waters, Massimiliano Calabrese, Jacqueline Palace, Ruth Geraldes   +20 more
wiley   +1 more source

Potential Application of Pulsed Field Ablation in Ventricular Arrhythmias

Medicina, 2023
Pulsed field ablation (PFA) is a new ablative method for the therapy of arrhythmia. Recent preclinical and clinical studies have already demonstrated the feasibility and safety of PFA for the treatment of atrial fibrillation (AF).
Jie Qiu, Meiyan Dai, Yang Bai, Guangzhi Chen   +3 more
doaj   +1 more source

Validation of a multipolar pulsed-field ablation catheter for endpoint assessment in pulmonary vein isolation procedures.

, 2022
AIMS To validate the performance of a multipolar pulsed-field ablation (PFA) catheter compared to a standard pentaspline 3D-mapping catheter for endpoint assessment of pulmonary vein isolation (PVI).
Baldinger, Samuel H, Reichlin, Tobias, Tanner, Hildegard, Asatryan, Babken, Servatius, Helge, Madaffari, Antonio, Noti, Fabian, Kueffer, Thomas, Franzeck, Florian, Roten, Laurent, Haeberlin, Andreas, Mühl, Aline, Thalmann, Gregor, Seiler, Jens, Franzeck, Florian Markus, Häberlin, Andreas David Heinrich, Baldinger, Samuel Hannes, Servatius, Helge Simon, Reichlin, Tobias Roman, Küffer, Thomas, Florian Franzeck, Fabian Noti, Tobias Reichlin, Jens Seiler, Aline Mühl, Andreas Haeberlin, Samuel H Baldinger, Antonio Madaffari, Hildegard Tanner, Gregor Thalmann, Laurent Roten, Thomas Kueffer, Babken Asatryan, Helge Servatius   +33 more
core   +1 more source

Four‐Year Cognitive Outcomes in Multiple Sclerosis: Associations With Lesion Myelin Integrity

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Cognitive impairment is prevalent in patients with multiple sclerosis (MS) but whether lesion myelin integrity influences future cognitive outcomes remains unclear. We investigated the relationship between baseline lesion myelin water fraction (MWF) and cognitive performance 4 years later.
Iliana Pliska‐Bloch, Hannah Schwartz, Kimberly H. Markowitz, Abhishek Jaywant, Christopher D. Hildenbrand, Jai Perumal, Ulrike W. Kaunzner, Thanh D. Nguyen, Sandra Hurtado Rúa, Susan A. Gauthier   +9 more
wiley   +1 more source

Adjusting Nucleation Chemistry for the Atomic Layer Deposition of Antimony Selenide on Metal Oxide Surfaces

Advanced Engineering Materials, EarlyView.
The ALD precursor bis(trimethylsilyl)selenide is simultaneously a substrate surface inhibitor. It allows for the growth of Sb2Se3 in combination with tris(dimethylamido)antimony, but also silylates surface hydroxyl groups on the substrate if such hydroxyls are present.
Pei‐Chun Liao, Klaus Götz, Johannes Will, Mingjan Wu, Martin Dierner, Patrick Duchstein, Dirk Zahn, Tobias Unruh, Erdmann Spiecker, Julien Bachmann   +9 more
wiley   +1 more source

Non-thermal ablation and drug delivery by electroporation: expanding current indications beyond cancer and cardiac treatment

Radiology and Oncology
Electroporation-Based Treatments and Therapies (EBTTs) – electrochemotherapy, irreversible electroporation, pulsed field ablation, and gene electro-transfer – use short, high-voltage electric pulses to permeabilize cell membranes, enabling non-thermal ...
Miklavcic Damijan, Cindric Helena, Davalos Rafael V, Deschamps Frederic, Gehl Julie, Kos Bor, Kramar Peter, Kuhelj Dimitrij, Meijerink Martijn R, Soden Declan, Stabuc Miha, Sersa Gregor   +11 more
doaj   +1 more source

Radiofrequency, Cryoablation, and Pulsed Field Ablation for Atrial Fibrillation: Mechanisms, Preclinical Evidence, and Clinical Outcomes

Biomedicines
Catheter ablation has become a cornerstone therapy for atrial fibrillation, with pulmonary vein isolation as its mechanistic foundation. Radiofrequency ablation and cryoablation, the two established thermal technologies, have demonstrated robust efficacy
Andrei Mihordea, Mihai Puiu, Gelu Simu, Ioan-Alexandru Minciuna, Radu Rosu, Gabriel Gusetu, Dana Pop, Gabriel Cismaru   +7 more
doaj   +1 more source

Numerical Modeling of Excimer Laser Curved Surface Ablation [PDF]

, 2013
Laser ablation has been widely used in the fabrication of miniature parts. The technique is also used in the fabrication of micro lens or micro-curved surfaces which find potential applications in various optical, bio- medical, electronics, MEMS ...
Marla, Deepak, Saxena, Ishan, Joshi, Suhas S., Garg, Vivek   +3 more
core  

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source