Results 51 to 60 of about 4,151 (199)

Visual Patterns of Diaphragmatic Motion in Acute Respiratory Failure: A Prospective Pilot Study

Journal of Clinical Ultrasound, Volume 53, Issue 3, Page 421-428, March/April 2025.
In this prospective bicentric study, we studied the relationship between the appearance of diaphragmatic motion and the etiological diagnosis of patients admitted to the emergency department with ARF. We observed a different visual pattern in patients with pneumonia. This is an interesting result as it allows the diagnosis of pneumonia without the need
Thibaut Markarian, Matthieu Daniel, Kevin Guillemet, Florian Ajavon, Florent Femy, Romain Genre Grandpierre, Anne‐Laure Feral‐Pierssens, Xavier Bobbia   +7 more
wiley   +1 more source

Performance of Free‐Running Cardiac and Respiratory Motion‐Resolved Whole‐Heart 5D MRI in Congenital Heart Disease Patients Using a Gadolinium Enhanced Fast‐Interrupted Steady‐State Sequence

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The performance of 5D imaging in CHD has been previously demonstrated using ferumoxytol rather than gadolinium. Purpose To evaluate the performance of gadolinium enhanced 5D MRI relative to 2D and 3D MRI in CHD patients. Study Type Retrospective.
Christopher W. Roy, Eva Vogeli, Alissia Megalo, Fabienne Dirbach, Jessica A. M. Bastiaansen, Jérôme Yerly, Marco Mueller, David Rodrigues, Jean‐Baptiste Ledoux, Juerg Schwitter, Milan Prša, Estelle Tenisch, Tobias Rutz, Matthias Stuber   +13 more
wiley   +1 more source

Acute Effects of Smoking and Vaping on Markers of Vascular Function via Quantitative MRI

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background E‐cigarettes contribute to endothelial dysfunction, a known cause of systemic atherosclerotic disease that cannot be adequately characterized by a single physiological parameter measured at a single vascular bed. Purpose/Hypothesis Quantify and compare acute effects of smoking or vaping with tobacco cigarettes (t‐cigs), nicotinized ...
Marianne Nabbout, Mahdie Hosseini, Harris Quach, Michael C. Langham, Alessandra S. Caporale, Wensheng Guo, Kathryn Jaroszynski, Frank T. Leone, Andrew A. Strasser, Felix W. Wehrli   +9 more
wiley   +1 more source

Feasibility and SNR Performance of Hyperpolarized 129Xe Gas Exchange Imaging Using a Balanced SSFP Sequence

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a balanced SSFP (bSSFP) sequence for pulmonary 129Xe dissolved‐phase imaging based on a previously described double‐echo sequence facilitating separation into red blood cell and membrane signals, to test its feasibility and compare its SNR performance and imaging results to an analogous FLASH sequence.
Agilo L. Kern, Marcel Gutberlet, Jens M. Hohlfeld, Frank Wacker, Jens Vogel‐Claussen   +4 more
wiley   +1 more source

Factors for the Variability of Three Acceptable Maximal Expiratory Flow-Volume Curves in Chronic Obstructive Pulmonary Disease. [PDF]

Int J Chron Obstruct Pulmon Dis, 2021
Yamamoto M, Konno S, Makita H, Nitta K, Shimizu K, Suzuki M, Nishida M, Sugita J, Teshima T, Nishimura M.   +9 more
europepmc   +1 more source

Flow 2.0: A Standardized Toolbox for Real‐Time Phase‐Contrast MRI of Neurofluid Dynamics

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Real‐time phase‐contrast MRI (RT‐PC) enables continuous quantification of physiological flow dynamics across multiple temporal frequencies, but its broader application is limited by complex and fragmented post‐processing workflows.
Pan Liu, Olivier Balédent
wiley   +1 more source

Image‐Derived Volumetry During Forced Expiration Using a 3D Fermat Looped, Orthogonally Encoded Trajectory

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To enable MRI‐based nongated 3D depiction of forced expiration with both high spatio‐temporal resolution and fidelity of lung dynamics. Methods An undersampled 3D Fermat looped, orthogonally encoded trajectory (FLORET) was optimized for nonsegmented dynamic acquisitions during forced expiration and a corresponding model‐based ...
Sebastian Scheidel, Viktor Hartung, Matthias Stephan Anders, Corona Metz, Herbert Köstler, Simon Veldhoen, Tobias Wech   +6 more
wiley   +1 more source

Correlating Pulmonary Hemodynamics With HP 129Xe Dissolved‐Phase MRSI in a Controlled Porcine Intervention Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Pulmonary hypertension is related to a 1‐year mortality ranging from < 5% to > 20% in low‐ and high‐risk groups. Right heart catheterization is the diagnostic gold standard, associated with a 1.1% rate of severe adverse events, posing the need for a non‐invasive diagnostic tool.
Markus Phillip Andersen, Mattias Hedegaard Kristensen, Esben Søvsø Szocska Hansen, Rolf F. Schulte, Mohsen Redda, Uffe Kjærgaard, Michael Vaeggemose, Christoffer Laustsen   +7 more
wiley   +1 more source

Incomplete Spoiling Correction for 3D T1$$ {T}_1 $$ Mapping

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Assess the impact of incomplete spoiling and spatial saturation on T1$$ {T}_1 $$ mapping using the variable flip angle (VFA) spoiled gradient recalled echo sequence (SPGR). Develop a correction for incomplete spoiling that results in an accurate estimate of T1$$ {T}_1 $$, essential for quantitative MRI applications.
Gabriela Belsley, Damian J. Tyler, Matthew D. Robson, Elizabeth M. Tunnicliffe   +3 more
wiley   +1 more source

A Pilot and Feasibility Study of a Four‐Stage Neurological Staging Framework in Pediatric Tracheal Extubation During Anesthesia Emergence

Pediatric Anesthesia, EarlyView.
ABSTRACT Background Postoperative tracheal extubation is a particularly high‐risk period in pediatric anesthesia. Because emergence from anesthesia is a complex and complicated process, determining the optimal timing for safe tracheal extubation remains challenging.
Megumi Okuyama, Katsuhiko Ishibashi, Shiori Nakao, Tomoharu Ukiya, Kohei Takahashi, Taiki Kojima   +5 more
wiley   +1 more source