Publications by authors named "J V Amaya Valero"

Introduction: SRS for the treatment of limited brain metastases (BM) is widely accepted, but there are still limitations in the management of numerous BM. Frameless single-isocenter multitarget SRS is a novel technique that allows for rapid treatment delivery to multiple BM. We report our preliminary clinical, dosimetric, and patient´s shifts outcomes with this technique.

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Article Synopsis
  • Recurrent high-grade gliomas pose a treatment challenge; this study evaluates the effectiveness and tolerability of Hypofractionated Stereotactic Radiation (HFSRT) in re-irradiation.
  • A retrospective analysis of 52 patients treated between 2011 and 2021 showed median overall survival of 12 months, with re-irradiation doses differing among patients.
  • The treatment was mostly well-tolerated, with minimal severe side effects, indicating HFSRT as a promising option for managing these tumors.
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Phagocytosis is an indispensable function of microglia, the brain professional phagocytes. Microglia is particularly efficient phagocytosing cells that undergo programmed cell death (apoptosis) in physiological conditions. However, mounting evidence suggests microglial phagocytosis dysfunction in multiple brain disorders.

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Imaging studies have transformed the diagnosis of large vessel vasculitis (LVV) involvement in giant cell arteritis (GCA). A positron emission tomography/computed tomography (PET/CT) scan with 18-fluorodeoxyglucose (18F-FDG) has emerged as a valuable tool for assessing LVV. We aimed to determine the utility of an 18F-FDG-PET/CT scan in detecting LVV in GCA in the ARTESER registry.

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Ex vivo lung perfusion (EVLP) enables advanced assessment of human lungs for transplant suitability. We developed a convolutional neural network (CNN)-based approach to analyze the largest cohort of isolated lung radiographs to date. CNNs were trained to process 1300 longitudinal radiographs from n = 650 clinical EVLP cases.

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