The University of Texas System

Canon Medical Systems Corporation

Gary Arbique

Eugene A Mensah

Cecelia Brewington

Shaun Nordeck

Melissa Kirkwood

Erin Angel

Jeffrey Guild

The present disclosure provides a removable eyewear shielding device, an eyewear comprising a removable eyewear shielding device, and methods of uses thereof for reducing eye radiation exposure, reducing ipsilateral brain radiation exposure, reducing FGI-induced lens opacification, reducing cataract development, or protecting an eye or ipsilateral brain from radiation exposure.

Modification to leaded eyewear for significant operator eye radiation dose reduction

Computed tomography perfusion (CTP) is used in a method to identify cancerous lesions having genetic mutations and treat them accordingly. Also, CTP values are used to distinguish primary versus metastatic lesions. For example, pulmonary blood flow is identified as one biomarker for EGFR and KRAS genetic mutations in lung cancer, lesion having dual-input pulmonary blood flow exceeding a threshold (e.g., 103 ml/min/100 mL with sensitivity 100% and specificity 62%) are determined as having mutations. The CTP values are calculated using a lesion region-of-interest (ROI) placed to include the area of maximum perfusion intensity within the lesion base and surrounding blush, while avoiding regions of perfusion inhomogeneity (e.g., due to necrosis). In certain implementations, instead of a binary determination, the method can generate probabilities associated with respective alternatives (e.g., mutation/non-nutation and/or primary/secondary), and the method can use multivariable statistical analysis that incorporates patient and/or medical information in addition to CTP values.

Computed tomography perfusion (CTP) method and apparatus using blood flow for discriminating types of cancer

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DeSoto, TX, United States of America

Gary Arbique