New Robotic Technologies in Cancer Colon Screening

Colorectal cancer (CRC) is the 3rd most common cause of cancer death worldwide. Regular screening of the asymptomatic population can drastically reduce the mortality rate. CRC screening includes several proceedings although the gold standard remains optical colonoscopy (OC), which is unpleasant, causes pain and discomfort. New technologies exemplified by capsule endoscopy (CE) constitute alternative painless solutions and despite their limitations, e.g., passive locomotion and absence of on-board instrumentation, are being increasingly used for CRC screening. Research and development centres are investigating novel advanced robotic technologies for diagnostic and therapeutic use. These include wireless communication, active locomotion, sensors, diagnostic, and therapeutic instruments. This review describes the traditional OC procedure and the existing robotic technologies for CRC

A novel combination of triple metachronous malignancies of the kidney, oropharynx and prostate. A case report

Synchronous or metachronous malignancies are a rare event, with an incidence rate that increases with age. The present study reports the case of a 70-year-old Caucasian male who was referred to the outpatient office of the Urology Unit, Sapienza University of Rome (Latina, Italy) due to lower urinary tract symptoms. An abdominal ultrasound investigation was performed that demonstrated the presence of a right renal mass. The patient underwent right radical nephrectomy, which resulted in the definitive diagnosis of clear cell type renal cell carcinoma. The patient was eventually diagnosed with triple primary metachronous cancer consisting of renal clear cell carcinoma, prostate adenocarcinoma and squamous cell carcinoma of the oropharynx (palatine tonsil). To the best of our knowledge, this combination of primary neoplasms has not previously been documented

Spectral Classified Vector Quantization (SCVQ) for Multispectral Images

Multi- and hyper-spectral data pose severe problems in terms of storage capacity and transmission bandwidth. Although recommendable, compression techniques require efficient approaches to guarantee an adequate fidelity level. In particular, depending on the final destination of the data, it could be necessary to maximize several parameters, as for instance the visual quality of the rendered data, the correctness of their interpretation, or the performance of their classification. Based on the idea of Spectral Vector Quantization, the approach proposed in this paper aims at combining a compression and a classification methodology into a single scheme, in which visual distortion and classification accuracy can be balanced a- priori according to the requirements of the target application. Experimental results demonstrate that the proposed approach can be employed successfully in a wide range of application domains

Bow-Tie Cavity for Terahertz Radiation

We report on the development, testing, and performance analysis of a bow-tie resonant cavity for terahertz (THz) radiation, injected with a continuous-wave 2.55 THz quantum cascade laser. The bow-tie cavity employs a wire-grid polarizer as input/output coupler and a pair of copper spherical mirrors coated with an unprotected 500 nm thick gold layer. The improvements with respect to previous setups have led to a measured finesse value F=123, and a quality factor Q = 5.1x10^5. The resonator performances and the relevant parameters are theoretically predicted and discussed, and a comparison among simulated and experimental spectra is given

Beyond the Weakly Hard Model: Measuring the Performance Cost of Deadline Misses (Artifact)

This document provides a brief description of the artifact material related to the paper "Beyond the Weakly Hard Model: Measuring the Performance Cost of Deadline Misses". The code provided in the artifact implements the algorithms presented in the paper and all the experimental tests