INTRODUCTION Time-consuming manual methods have been required to register cone-beam computed tomography (CBCT) images with plans in the Pinnacle(3) treatment planning system in order to replicate delivered treatments for adaptive radiotherapy. These methods rely on fiducial marker (FM) placement during CBCT acquisition or the image mid-point to localise the image isocentre. A quality assurance ...

In this survey paper a comprehensive survey of segmentation techniques used for localizing brain stroke area (differentiating it with normal region of brain) has been presented. In recent times, automated systems are preferred over manual and semi automated systems. Segmentation or localization is not a challenge, challenge lies behind producing an automated, reproducible and clinically accepte...

BACKGROUND AND OBJECTIVES Our study developed a fully automated method for segmentation and volumetric measurements of kidneys from magnetic resonance images in patients with autosomal dominant polycystic kidney disease and assessed the performance of the automated method with the reference manual segmentation method. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Study patients were selected ...

BACKGROUND Age-related macular degeneration (ARMD) is the most prevalent cause of visual loss in patients older than 60 years in the United States. Observation of drusen is the hallmark finding in the clinical evaluation of ARMD. OBJECTIVES To segment and quantify drusen found in patients with ARMD using image analysis and to compare the efficacy of image analysis segmentation with that of st...

OBJECTIVE To determine the efficacy and safety of automated adjustment of the fraction of inspired oxygen (Fio(2)) adjustment in maintaining arterial oxygen saturation (Spo(2)) within an intended range for mechanically ventilated preterm infants with frequent episodes of decreased Spo(2). METHODS Thirty-two infants (gestational age [median and interquartile range]: 25 weeks [24-27 weeks]; age...

Detecting rare events in an electronic medical record (EMR) is similar to searching for a needle in a haystack. Automated methods (natural language processing) and manual methods (chart review) can be used. However, when events are rare and the patient population is large, manual annotation may not be feasible and NLP alone may not be able to reach acceptable levels of performance. We propose a...

OBJECTIVE High-definition transcranial direct current stimulation (HD-tDCS) and high-density electroencephalography require accurate models of current flow for precise targeting and current source reconstruction. At a minimum, such modeling must capture the idiosyncratic anatomy of the brain, cerebrospinal fluid (CSF) and skull for each individual subject. Currently, the process to build such h...