Currently available ultrasound (US) tomography systems suggest utilizing cylindrical transducers that can be used for a specific organ. In this paper, our focus is on an alternative way of creating US tomographic images that could be used for other anatomies and more general applications. This system consists of two conventional US probes facing each other while one or several of the transducer...

Maximum likelihood estimation is a valuable tool often applied to inverse problems in quantum theory. Estimation from small data sets can, however, have non unique solutions. We discuss this problem and propose to use Jaynes maximum entropy principle to single out the most unbiased maximum-likelihood guess.

Background: Primary spontaneous pneumothorax is a relatively common condition in young adults. Although blebs and bullae are frequently found in patients with primary spontaneous pneumothorax, they are very rarely the actual cause of the pneumothorax. Objective: To assess our experience with chest computed tomography evaluation in patients with recurrent spontaneous pneumothorax as compared to ...

Neural networks (NNs) representing quantum states are typically trained using Markov chain Monte Carlo based methods. However, unless specifically designed, such samplers only consist of local moves, making the slow-mixing problem prominent even for extremely simple states. Here, we propose to use mode-assisted training that provides global information via modes NN distribution. Applied state t...

BACKGROUND To report the first case of the spontaneous appendicovesical fistulas' (AVF) repair with robot assisted laparoscopy. CASE PRESENTATION A 29-year-old male patient with urgent persistant bacteriuria and dysuria was referred to our clinic. Physical examination and blood tests were normal. He had used various antibiotics due to recurrent UTI for about 20 years. Computed tomography reve...

Computer-assisted virtual surgery is a rapidly emerging topic in the dentistry field (1). Recent developments of high resolution computed tomography (CT) has enabled a better understanding of the complex anatomical structure. The combination of high resolution CT, three-dimensional reformatted images, and stereolithographic models have improved the convenience and accuracy in oral and maxillofa...

Video-assisted thoracoscopic treatment of intralobar pulmonary sequestration in an obese (120 kg, body mass index 42) young man is described. Two aberrant arteries originating from the descending thoracic aorta were transected with a vascular stapler, and a left lower lobectomy was successfully performed thoracoscopically. Three-dimensional chest computed tomography was used to identify the abe...