Results 201 to 210 of about 4,843,849 (291)

Spatiospectral Photoacoustic Microscopy With Gain‐Switched Ti:Sapphire Laser for High‐Accuracy Molecular Dynamics Imaging

open access: yesLaser &Photonics Reviews, EarlyView.
Spatiospectral photoacoustic microscopy is enabled by stable, wavelength‐tunable dual‐pulse excitation from a gain‐switched Ti:sapphire laser. Intrinsically synchronized 532‐nm and NIR‐I pulses provide single‐scan, co‐registered mapping of oxygen saturation and indocyanine green dynamics in vivo.
Yong‐Jae Lee   +8 more
wiley   +1 more source

Emergency Laparoscopic Appendectomy in a High-Risk Cardiac Patient With Severe Left Main Coronary Artery Disease on Dual Antiplatelet Therapy. [PDF]

open access: yesJ Med Cases
Arapi B   +13 more
europepmc   +1 more source

QQ‐Based Oxygen Extraction Fraction (OEF) Mapping in Mouse Brain: Initial Experience

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Oxygen extraction fraction (OEF) is a vital biomarker of cerebral oxygen metabolism and tissue viability. A novel OEF mapping method, QQ, which combines quantitative susceptibility mapping (QSM) and quantitative blood oxygen level‐dependent (qBOLD) (QSM + qBOLD = QQ), has demonstrated promise in detecting disease‐related OEF ...
Quinn Boyer   +4 more
wiley   +1 more source

In Vivo Dynamic D2O‐MRI for Quantifying Apparent CSF Water Renewal Across Ventricular and Extraventricular Compartments

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The choroid plexus has long been regarded as the principal source of cerebrospinal fluid (CSF), yet this view remains unresolved. We developed a dynamic indirect D2O MRI approach to quantify regional apparent CSF water renewal in vivo in rats at 9.4 T.
Zhao Zhang   +5 more
wiley   +1 more source

Prandial Effects on Intravoxel Incoherent Motion Quantification in the Liver

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the feasibility of detecting prandial (i.e., meal) induced changes in microvascular flow in the liver, including changes in the spatial distribution of flow velocities, using intravoxel incoherent motion (IVIM) MRI. Methods Thirteen (n = 13) healthy volunteers underwent two liver MR exams: one preprandial after fasting and ...
Gregory Simchick   +4 more
wiley   +1 more source

Rotating Frame Spin‐Lock Cardiac MRI Method at 9.4 T Can Characterize Diffuse Fibrosis in Progressing Hypertensive Heart Disease in Mice

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to investigate the applicability of rotating frame spin‐lock continuous wave (CW) T1ρ and relaxation along a fictitious field with Rank 2 (RAFF2) methods complementary to native T1 and late gadolinium enhancement (LGE) for cardiac magnetic resonance imaging (CMRI) of diffuse fibrosis in mice with advancing hypertensive
Riku Kiviluoto   +8 more
wiley   +1 more source

Non‐Invasive Triage of Bladder Outlet Obstruction and Detrusor Underactivity in Men With Lower Urinary Tract Symptoms: A Narrative Review and Conceptual Framework for Depth‐Aware Multimodal Transcutaneous Testing

open access: yesNeurourology and Urodynamics, EarlyView.
ABSTRACT Introduction Differentiating bladder outlet obstruction (BOO) from detrusor underactivity (DU) remains a major unmet need in the management of lower urinary tract symptoms in men. Although pressure–flow urodynamics provide a definitive physiological classification, their invasiveness limits their widespread use.
Sehwan Kim   +3 more
wiley   +1 more source

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