Sarah J Castillo

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BACKGROUND A retrospective analysis is performed to determine if pre-treatment [18 F]-2-fluoro-2-deoxyglucose positron emission tomography/computed tomography (FDG PET/CT) image derived parameters can predict radiation pneumonitis (RP) clinical symptoms in lung cancer patients. METHODS AND MATERIALS We retrospectively studied 100 non-small cell lung(More)
The benefits of four-dimensional computed tomography (4D CT) are limited by the presence of artifacts that remain difficult to quantify. A correlation-based metric previously proposed for ciné 4D CT artifact identification was further validated as an independent artifact evaluator by using a novel qualitative assessment featuring a group of observers(More)
Four-dimensional computed tomography (4D CT) is used to account for respiratory motion in radiation treatment planning, but artifacts resulting from the acquisition and postprocessing limit its accuracy. We investigated the efficacy of three experimental 4D CT acquisition methods to reduce artifacts in a prospective institutional review board approved(More)
  • Matt Ansay, Kristine Sliwicki, Brittney Kohlnhofer, Sarah Castillo
  • 2011
This study examined the eliciting conditions of the diving reflex in humans. Sixteen subjects underwent four experimental trials each: breath holding (apnea), diving position, face immersion in water without breath holding (using a snorkel), and experimental dive conditions (water, position and apnea " WPA "). Heart rate, blood pressure, and ECG(More)
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