Performance Characteristics Of Procedures Research Articles

OC-020 Comparative Effectiveness Of Novel Techniques For Barrett’s Oesophagus (bo) Screening In The Community: A Prospective Randomised Trial

IntroductionBO is the strongest precursor of oesophageal adenocarcinoma. Participation patterns and effectiveness of BO community screening using unsedated transnasal endoscopy (uTNE) is unknown. Feasibility of mobile van screening closer to...

A Multi-Center, Single-Arm, International, Feasibility Clinical Study of IOGYN Hysteroscopic Morcellation System. Preliminary Clinical Results

The primary objective of this study is to evaluate the performance of the IOGYN System in removing abnormal uterine pathologies including submucosal myomas and endometrial polyps. Secondary objectives involve: Assessing the performance of the Fluid Management System; tissue characterization including histopathology; and other system and procedure performance characteristics. A Multi-Center, International, Single-Arm, Feasibility Clinical Study. Five investigational centers in Mexico and Hungary. A total of up to 50 Women diagnosed with submucous fibroids and/or endometrial polyps. IOGYN Procedure. The primary safety evaluation is the occurrence of adverse events. Primary effectiveness evaluation is performed by assessing the adequacy of removal of abnormal uterine pathologies including submucosal myomas and endometrial polyps. Secondary objectives involve: Assessing the performance of the Fluid Management System; tissue characterization including histopathology; and other system and procedure performance characteristics. Most up to date clinical results from this in-progress study will be reported. This multi-center, international, feasibility clinical study will be the first to generate information regarding the performance of the IOGYN System in removing benign uterine pathology.

Adsorption-spectrometric and test methods for determining perchlorate ions with thionine on polyurethane foam

Conditions were studied for the extraction of perchlorates from water by the adsorption of their ion associate with the thionine dye on polyurethane foam. The adsorption properties of polyurethane foam were studied by measuring the diffuse reflectance of perchlorate ion associates with thionine adsorbed on pellets of this material. The use and performance characteristics of procedures were studied for the extraction-photometric (to 0.05 mg/L), adsorption-spectrometric (to 1.5 mg/L), and semiquantitative visual test (to 2 mg/L) determination of perchlorates in natural water.

Adsorption-catalytic test methods

In the development of a new hybrid adsorption–catalytic method it was shown that the selective adsorption isolation of components can be combined with their catalytic determination directly on the adsorbent. To provide theoretical grounds and find fields of the application of the new method, the effect of the support matrix on the rate of catalytic (enzymatic and indicator) reactions was studied. The changes in the performance characteristics of procedures for determining inorganic and organic substances directly on the adsorbent with respect to those of procedures for determining in solutions were analyzed. It was proved that the development of catalytic test procedures with the visual detection of the analytical signal is expedient.