Results 191 to 200 of about 39,208 (311)

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu   +5 more
wiley   +1 more source

Enhanced Quantitative Phosphocreatine MR Imaging of Skeletal Muscle Using a Global–Local Two‐Branch Deep Learning Model

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Phosphocreatine (PCr) is an essential marker of muscle metabolism, and accurate quantification of its (fs) and its exchange rate (ksw) is essential for diagnosing various muscular and neuromuscular diseases. Although chemical exchange saturation transfer (CEST) MRI can detect the saturation transfer effect from PCr, quantification of ...
Malvika Viswanathan   +9 more
wiley   +1 more source

What Are the Limitations of Measuring Bladder Compliance, As the Sole Indicator of Future Risk to the Upper Urinary Tract and Renal Function? ICI‐RS 2025

open access: yesNeurourology and Urodynamics, EarlyView.
ABSTRACT Introduction Maintenance of bladder filling and urinary storage at low intravesical pressures is fundamental to minimizing risk to the upper urinary tract. Bladder compliance describes the relationship between the bladder volume and the change in detrusor pressure during the filling phase of urodynamics.
Eric Rovner   +5 more
wiley   +1 more source

Impact of Priming Volume Reduction on Hematocrit Retention in Pediatric Cardiopulmonary Bypass: A Retrospective Analysis

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Background Retrograde autologous priming and venous antegrade priming replace the cardiopulmonary bypass circuit crystalloid with patient blood to mitigate hemodilution. However, their effectiveness in pediatric patients, particularly when analyzed as continuous variables, remains unclear.
Tokimitsu Hibino   +10 more
wiley   +1 more source

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