Avaliação do campo visual em salas de comando de radiologia em hospitais municipais de Teresina

Abstract

No radiodiagnostic service should operate without being duly licensed by the local sanitary authority. The objective of the present study was to realize the ergonomic evaluation of lead display in rooms control of the X-ray rooms, regarding the positioning of the visual field of the radiology professional, during a chest radiography, respecting the recommendations of radiological protection and Ordinance 453/ 98. The data obtained were analyzed on the basis on the anthropometric characteristics of a Brazilian man of medium height. The analyzes were performed in eight X-ray rooms of hospitals of the municipal health network of the city of Teresina, state of Piauí during the month of August, 2017. The visual field of the professional in radiology was determined with the aid of a lighting device and with the demarcation of the shaded area, considered as a field of zero visibility. All field-of-view data were obtained after adjusting the distance between the center of the lead display and the light source at 30cm (fixed as the ergonomically optimal distance). It was observed that the average height of the lead display is inferior to the height of the eyes of the men between the 19 and 54 years. In only 37% of the rooms the access door is visible during the examination. It was also observed that the best structural configuration between evaluated rooms is when the lead display is positioned obliquely to vertical bucky, allowing a total view with the patient during an examination. It is concluded that the hypothesis presented in this study, regarding errors on layout unfavorable the ergonomics and the compliance with Ordinance 453/98, i has been proven for all rooms considered here.