Purpose: The single reference variable flip angle sequence with a multi-echo stack of stars acquisition (SR-VFA-SoS) simultaneously measures temperature change using proton resonance frequency (PRF) shift and T-based thermometry methods. This work evaluates SR-VFA-SoS thermometry in MR-guided focused ultrasound in an in vivo rabbit model.
Methods: Simultaneous PRF shift thermometry and T-based thermometry were obtained in a New Zealand white rabbit model (n = 7) during MR-guided focused ultrasound surgery using the SR-VFA-SoS sequence at 3 T.
Background: Behcet disease (BD) is a rare small vessel vasculitis that commonly manifests as recurrent painful oral or genital ulcerations, uveitis, and skin lesions. Some patients with BD develop neurological symptoms termed neuro-Behcet's disease. In the emergency department setting, these symptoms can be mistaken for other common acute issues including stroke, infection, epilepsy, multiple sclerosis, toxin ingestion, or psychiatric conditions.
View Article and Find Full Text PDFObjectives/hypothesis: Vocal fold (VF) injury and chronic inflammation can progress to scarring, which is notoriously difficult to treat. Human amniotic fluid (AF) has potential for VF wound healing in a rabbit model, and we hypothesized that AF would demonstrate wound healing properties superior to hyaluronic acid (HA) over time.
Study Design: Randomized, controlled trial.
The prevalence of prostate-specific antigen (PSA) testing has consistently fallen for several years. This study explored how the decreasing trend differs by selected variables and reasons for taking the PSA test. Analyses involved men, aged 40 years or older, who completed the Behavior Risk Factor Surveillance System (BRFSS) survey in even number years from 2008 through 2022.
View Article and Find Full Text PDFThis study introduces a comprehensive hardware-software framework designed to enhance the quality of block face image capture-an essential intermediary step for registering 2D histology images to ex vivo magnetic resonance (MR) images. A customized camera mounting and lighting system is employed to maintain consistent relative positioning and lighting conditions. Departing from traditional transparent paraffin, dyed paraffin is utilized to enhance contrast for subsequent automatic segmentation.
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