Neuroimaging in the First 6 Weeks of the COVID-19 Pandemic in an 8-Hospital Campus: Observations and Patterns in the Brain, Head and Neck, and Spine.

Objective: The aim of the study was to aggregate neuroradiological findings in patients with coronavirus disease 2019 (COVID-19) in the brain, head and neck, and spine to identify trends and unique patterns.

Methods: A retrospective review of neuroimaged COVID-19 patients during a 6-week surge in our 8-hospital campus was performed. The brain imaging with reported acute or subacute infarction, intraparenchymal hemorrhage, and all neck examinations were reinterpreted by 2 reviewers.

Unusual case of biotin-thiamine responsive encephalopathy without basal ganglia involvement.

Biotin-thiamine-responsive encephalopathy, also known as biotin-responsive basal ganglia disease, is characterized by high T2 signal in the basal ganglia (caudate and putamina), which is reported as a typical feature of the disorder. Brain magnetic resonance imaging in our patient, who presented with irritability, poor feeding and prolonged seizures, found multiple areas of restricted diffusion in the cerebral cortex and thalami leading to an initial diagnosis of a mitochondrial disorder. The basal ganglia were not affected.

Application of Optical Topometry to Analysis of the Plant Epidermis.

The plant epidermis regulates key physiological functions contributing to photosynthetic rate, plant productivity, and ecosystem stability. Yet, quantitative characterization of this interface between a plant and its aerial environment is laborious and destructive with current techniques, making large-scale characterization of epidermal cell parameters impractical. Here, we present our exploration of optical topometry (OT) for the analysis of plant organ surfaces.