ABSTRACT
Background Plain films from the Water’s view and the Caldwell’ s view in an erect projection can help physicians see the pathology of sinusitis through the differences between clear fluid and air level. However, the Bucky stand which is a common device used in most of the community hospital in Thailand cannot take two views in one film.( Although some supporting devices can do this, their limitation is suitable only for a supine projection.) Thus, a radiographer usually uses two films for this purpose with causing unclear image. This leads to more cost, more radiation dose. As a result, an innovative device is needed to solve these problems.Objective To invent an accessory device for paranasal sinuses radiography in order to be equipped with the Bucky stand and able to take two radiograph in an erect projection in one film. And also it can help to reduce the field size of radiation exposure. Design : An experiment studySetting : The X ray room No. 3 at Srinagarind Hospital, Faculty of Medicine, Khon Kaen University.Material \& Method : The following three procedures are employed. First, planning and Designing a device. The second, inventing a device. Finally, testing its effectiveness in these aspects: taking two radiographs in one film, comparing the outline sharpness with and without the device, and comparing dose area product with and without the device.Result : The findings reveal that the device can be conveniently fitted to the Bucky stand. It can be use for erect projection and provides better sharpness outline images than those without this device. This device can also help to reduce dose area product by 70.9% comparing with the two–film.Conclusion : This device can be easily attached to the Bucky stand facilitating needed sinus radiography in the erect projection. It is very handy as it is easy to fixed and removed. It supports taking the Water’s view and Caldwell’s view in one film. Moreover, quality of the radiographic image has greatly been improved by the device. By DAP meter measurement, through this device, the radiation dose area product significantly decreases by 70.9 % compared with two-view method.