Individuals, entire economy and society are exposed to risks more than ever. The problem of occupational safety and health has been present from the moment of origin of labour and it has been dealt with in line with the overall development of society. For this reason,different methods and matrices for risk assessment have been developed. The subject of this study is to review the methods of risk assessment, as well as to apply these methods at the workplace where dangers and hazards occur. The aim of the study was to use KINNEY and AUVA methods for assessing risk for the workplace of Operating Engineer - Occupational Safety, Environmental Safety and Fire Protection, and to perform a comparative analysis of with the aim to state possible advantages or disadvantages of chosen methods.
Key words:the risk assessment, methods of risk assessment, KINNEY method,AUVA method.
The purpose of this work was to evaluate computed tomography (CT) simulators
used in radiotherapy treatment planning in Serbia, Croatia and Bosnia and
Herzegovina. A survey of quality assurance programmes of 24 CT simulators
in 16 facilities was conducted. Dedicated CT-to-ED phantom was scanned at
120 kV and 140 kV, to obtain CT-to-ED (ED- Electron Density) conversion
curves as well as CTDIvol. Thoracal phantoms were scanned in standard and
extended field of view to evaluate dosimetric effect on treatment planning
and delivery. Mean age of measured scanners was 5.5 years. The mean water HU
value was -6.5 (all scanners, all voltages) and air HU value was -997.
Extended field of view CT data differ from standard field of view and
differences between conversion curves have significant dosimetric impact.
The CTDI data showed large range of values between centers. Better QA of CT
simulators in all countries is recommended. CT-to-ED curve could be used as
default at one voltage and per manufacturer. Extended field of view imaging
can be used, but treatment planning should be avoided in the regions out of
standard field of view.
Background
Intramyocardial dissecting hematoma (IDH) is a rare and potentially life-threatening complication of acute coronary syndrome. So far only isolated case reports and case series have been published.
Case summary
We report the case of a late presenting myocardial infarction (MI) complicated by IDH of the ventricular septum, following a successful percutaneous coronary intervention (PCI). The clinically inapparent septal mass was discovered during the routine transthoracic echocardiography and the final diagnosis of hematoma was made by magnetic resonance imaging. The patient remained clinically stable, and septal mass on repeated echocardiography showed gradual regression.
Discussion
This report suggests that IDH can spontaneously resolve without surgical intervention. An urgent echocardiogram should be used to assess the vitality of the myocardial tissue, especially with late presenting MI with deep Q waves on the ECG strip. Conservative treatment in hemodynamically stable patients with IDH following MI and PCI is a feasible solution.
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