The purpose of this study was to analyze four different cone-beam computed tomography (CBCT) protocols to identify horizontal root fractures (HRF) in endodontically treated teeth, with or without the presence of a metallic post. Thirty extracted single-rooted human premolars were treated endodontically. Afterwards, an observer induced a horizontal fracture in 15 teeth. Each tooth was inserted i...

The Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction (PROPELLER) method for magnetic resonance imaging data acquisition and reconstruction has the highly desirable property of being able to correct for motion during the scan, making it especially useful for imaging pediatric or uncooperative patients and diffusion imaging. This method nominally supports a circular fi...

Several studies have addressed the problem of optimizing field of view (FOV) size and sampling area of infrared sensors with the goal of achieving a higher percentage of cloud-free measurements. This study focuses on developing a tool to use global cloud analysis data in order to better understand the effects that different FOV sizes and satellite tracks have on the percentage of cloud-free mea...

Distributed multitarget tracking (MTT) is suitable for sensors with limited field of view (FoV). Generalized covariance intersection (GCI) fusion used to solve the MTT problem based on label probability hypothesis density (PHD) filtering in this paper. Because traditional GCI only has good performance targets each sensor’s FoV, and outside range would be lost, paper redivides Gaussian component...

PURPOSE This study was performed to evaluate the linear distance accuracy and reliability of stitched small field of view (FOV) cone-beam computed tomography (CBCT) reconstructed images for the fabrication of implant surgical guides. MATERIALS AND METHODS Three gutta percha points were fixed on the inferior border of a cadaveric mandible to serve as control reference points. Ten additional gu...

This work describes a real-time imaging and visualization technique that allows multiple field of view (FOV) imaging. A stream of images from a single receiver channel can be reconstructed at multiple FOVs within each image frame. Alternately, or in addition, when multiple receiver channels are available, image streams from each channel can be independently reconstructed at multiple FOVs. The i...

The Search for Extraterrestrial intelligence (SETI) is a scientific and cultural effort seeking evidence of intelligent life beyond earth. Radio SETI observes the radio spectrum ''technosignatures" that could be produced by an advanced ET society. This work models as end-to-end system, focuses on narrow-band intentional transmissions. We look at strategies to maximize expected number detections...

SMART-X is a mission concept for a 2.3 m2 e ective area, 0.5 ′′ angular resolution X-ray telescope, with 5 ′ FOV, 1 ′′ pixel size microcalorimeter, 22 ′ FOV imager, and high-throughput gratings.

introduction: this study sought to assess the effects of amperage (ma) and field of view (fov) on intracanal metal post artifacts and the diagnostic parameters for detection of vertical root fracture (vrf) in teeth with intracanal posts. methods and materials: in this diagnostic study, 80 human single-canal teeth were evaluated by cone-beam computed tomography (cbct). nickel chrome cast posts w...