In this paper a novel approach for the tool–based quality assurance of models is presented. The approach provides a meta model framework for domain specific and tool–independent quality assessment in heterogeneous model landscapes. In our framework we provide the concepts of queries, checks and views defined on meta model level and interpreted over the whole model landscape. Queries, checks and...

introduction: hospitals performance indicators will help monitoring, evaluation and decision making and therefore must be selected and ranked accurately. the aim of present study is identifying and selecting key hospitals performance indicators. materials and methods: this is a descriptive and mixed (quantitative-qualitative) study. literature review and expert panel has been done to identify a...

The quality of specimen fixation was examined within a routine diagnostic histopathology service. For each specimen the adequacy of fixation was assessed and the transit time between operating theatre and the laboratory was measured. Preliminary fixation was found to be inadequate in 25% of specimens and some form of manipulation to assist fixation was required in 36% of specimens. The mean tra...

Molecular diagnostics has become one of the dominant platforms in clinical laboratory medicine. Technological improvements, from automated sample preparation to real time amplification technology, provide the possibility to develop and run assays for a growing number of clinical questions. However, quality assurance and quality control issues have often remained underdeveloped but are still cri...

  ABSTRACT   Background: The X-ray machines used for radiodiagnosis should meet certain quality assurance (QA) programmes . These are necessary to have good quality radiographs at reasonably low exposure to patients.   Materials and Methods: Dose reduction methods in abdomen X-ray examination were carried out in 10 hospitals in Tehran. This paper presents the work, which was implemented on 200 ...

Background: Medical x-rays are the largest man-made source of public exposure to ionizing radiation. It is important to avoid conditions where the amount of radiation used is more than that needed for the procedure. Materials and Methods: The Entrance Skin Exposure (ESE) measurement was conducted for quality control of x-ray machines and survey of operator’s experimental techniques. The ESEs we...