Results 191 to 200 of about 228,717 (299)

5D Flow MRI Reveals Respiration‐Driven Changes in Blood Flow Energetics in Congenital Heart Disease

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Hemodynamic monitoring is essential for patients with right‐sided congenital heart disease (CHD). Respiration may have an increased impact on pulmonary flow in these patients that cannot be assessed by standard tools including 4D flow MRI. This study uses 5D flow MRI to assess respiratory‐cycle variations in flow energetics in patients
Thara Nallamothu   +7 more
wiley   +1 more source

Establishing an in vivo large animal model of one-lung ventilation and operative lung trauma. [PDF]

open access: yesPLoS One
Giffin C   +5 more
europepmc   +1 more source

VQ‐Wave: A Physics‐Driven Spatiotemporal Deep Learning Approach for Noncontrast‐Enhanced Lung Ventilation and Perfusion MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a robust deep learning framework for noncontrast‐enhanced functional lung MRI, overcoming the limitations of spectral decomposition in the presence of physiological nonstationarity. Methods We introduce VQ‐Wave (Ventilation/Q‐perfusion Waveform‐based Assessment of Variable Evolutions), a physics‐driven spatiotemporal ...
Grzegorz Bauman   +3 more
wiley   +1 more source

Ventilation Imaging of the Lung at 0.55T With Continuous Slice Cycling

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose and evaluate a novel method for pulmonary ventilation imaging, offering considerably improved SNR. Methods A continuous slice cycling (CSC) acquisition scheme is proposed to exclusively capture signal modulations from respiratory motion with increased SNR.
Andrea Leuthard   +4 more
wiley   +1 more source

Active Electromagnetic Interference Suppression for MRI and Proton Resonance Frequency Shift Thermometry During MRI‐Guided Microwave Ablation

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a software‐based active electromagnetic interference (EMI) suppression (AES) framework on whole‐body multi‐channel MRI systems for reliable MRI and MR thermometry during MRI‐guided microwave ablation (MWA). Methods In addition to primary imaging coils, an unloaded standard body array coil was positioned outside the imaging ...
Qing Dai   +5 more
wiley   +1 more source

Prenatal and Perinatal Outcomes in Fetuses With Macrocystic Congenital Pulmonary Airway Malformations: Thoracoamniotic Shunting Versus Expectant Management

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Describe prenatal imaging characteristics, perinatal and postnatal outcomes in fetuses with isolated macrocystic congenital pulmonary airway malformations (CPAM) undergoing thoracoamniotic shunting (TAS) and expectant management. Methods Retrospective cohort study of 123 fetuses with isolated macrocystic CPAM managed at the Ontario ...
Laurence Sophie Carmant   +9 more
wiley   +1 more source

Effect of simvastatin on postoperative complications in patients undergoing one-lung ventilation during surgery: the Prevention HARP-2 randomised controlled trial. [PDF]

open access: yesThorax
Glass A   +20 more
europepmc   +1 more source

Middle Cerebral Artery Doppler and Cerebroplacental Ratio Predict Adverse Neurological Outcomes in Fetal Growth Restriction

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective To assess the efficacy of middle cerebral artery (MCA) Doppler ultrasonography in predicting neurological and respiratory outcomes in fetuses with fetal growth restriction (FGR) and to establish a correlation between MCA Doppler and head circumference (HC). Method Retrospective cohort study examining singleton pregnancies affected by
Silvia Visentin   +6 more
wiley   +1 more source

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