This article is concerned with a version of photoacoustic computed tomography, that uses line detectors (instead of point-like ones) for the recording of induced acoustical data. The three dimensional imaging problem, consisting in reconstructing the unknown density function from recorded data, is reduced to a series of two dimensional problems: First, the initial data of the two dimensional wa...

PURPOSE The purpose of the study was to determine if increasing radiologist reading speed results in more misses and interpretation errors. METHODS We selected a sample set of 53 abdomen-pelvis CT scans of variable complexity performed at a teaching hospital during the study period. We classified the CT scans into 4 categories based on their level of difficulty, with level 4 representing the ...

A series expansion method in three dimensional tomography is presented. While the function to be reconstructed is expanded in terms of spherical harmonics and orthogonal polynomials, the projection of the function is expanded in terms of Euler angles in the angular part and orthogonal polynomials in the radial part. The computer simulation of the reconstruction demonstrates the applicability of...

precise localization of the third molars in relation to the inferior alveolar nerve canal is critical from a clinical point of view and strongly affects the surgical treatment outcome. recently, by using three-dimensional modeling software, the relationship of third molar root apices and inferior alveolar nerve canal can be better understood. in this study, the spatial relationship of two surgi...

Using an effective field theory framework we reconsider the problem of radiative corrections from compact dimensions to the 4D gauge couplings. We evaluate the general structure of one-loop contribution from Kaluza-Klein states to the 4D gauge couplings, in models with one-and two-dimensional orbifold compactifications. The calculation includes the additional effect of a non-vanishing constant ...

Division of Imaging, Kings College, PET Centre at St Thomas’ Hospital, Guys’ and St Thomas’ Foundation NHS Trust, London, Great Ormond Street Hospital for Sick Children, City and Royal Victoria Hospitals Belfast, Leeds Teaching Hospitals NHS Trust, Blackpool Victoria Hospital, University College London Hospitals NHS Trust and Aberdeen Royal Infirmary, UK Correspondence to Dr Sally F. Barrington...

INTRODUCTION Incidental findings during ultrasound examinations occur frequently with live models in training sessions. Because of the broad scope of training sessions available, the ethics and guidelines of dealing with incidental findings in live models need to be discussed. METHODS We provide a case of an endovaginal ultrasound that had significant unexpected findings. RESULTS This repor...