Results 81 to 90 of about 6,159 (213)

Hypervision Proton Surgery: The Future Direction of Proton Therapy

open access: yesiNew Medicine, EarlyView.
ABSTRACT Proton beams provide unique physical advantages characterized by a low entrance dose, negligible exit dose, and a sharp Bragg peak, which enable superior sparing of normal tissues and support safe dose escalation for improved tumor control. However, conventional photon‐based fractionation remains widely used in proton therapy, where prolonged ...
Li Li, Shuanghu Yuan
wiley   +1 more source

Deniers and Compliers: Unpacking the Heterogeneous Effectiveness of U.S. Stay‐at‐Home Mandates During the COVID‐19 Pandemic

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT While existing work shows COVID‐19 stay‐at‐home (SAH) policies decreased mobility on average, we lack evidence regarding heterogeneity in policy effectiveness across US counties. To uncover potential heterogeneity, we implement a novel two‐stage approach.
James Sears   +5 more
wiley   +1 more source

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

open access: yesJournal 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   +7 more
wiley   +1 more source

Longitudinal 1H and 129Xe Lung MRI in Patients With Post‐COVID Residual Lung Abnormalities

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background It is unclear how lung function may recover in patients with residual lung abnormalities (RLAs) following COVID‐19 pneumonia. Purpose To evaluate lung function trends over time in patients with RLAs following hospitalization due to COVID‐19. Study Type Prospective, multicenter longitudinal cohort study.
Laura C. Saunders   +41 more
wiley   +1 more source

Association Between HIV Infection Duration and Left Ventricular Concentric Remodeling and Myocardial Fibrosis: A Cross‐Sectional Study Using Cardiac MRI

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Antiretroviral therapy has transformed HIV into a chronic condition, yet cardiac injury remains a major issue. Purpose To assess the ability of cardiac MR imaging markers to predict cardiac injury and disease progression in HIV‐infected individuals. Study Type Prospective.
Chunyan Deng   +5 more
wiley   +1 more source

Forced expiratory volume is associated with cardiovascular and cortisol reactions to acute psychological stress: Forced expiratory volume and stress reactivity [PDF]

open access: yes, 2012
It has been argued that blunted cardiovascular and cortisol reactions to acute psychological stress reflect a dysregulation of the neural system that supports motivation. We examined the association between forced expiratory volume in 1 s, an effort (hence motivation) dependent measure of lung function measured by spirometry, and cardiovascular and ...
Carroll, Douglas   +5 more
openaire   +1 more source

Impact of cystic fibrosis transmembrane conductance regulator modulator therapies on liver stiffness and liver enzymes: An observational perspective single‐center cohort study

open access: yesJPGN Reports, EarlyView.
Abstract Objectives The efficacy of cystic fibrosis transmembrane conductance regulator (CFTR)‐modulator therapies in preventing or ameliorating cystic fibrosis liver disease (CFLD) by correcting CFTR in cholangiocytes is not well‐documented. This study aimed to assess liver function during CFTR‐modulators.
Laura Giugliano   +12 more
wiley   +1 more source

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

open access: yesMagnetic 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   +4 more
wiley   +1 more source

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