Comparison of the radiograph quality between blue films and green films in medical X-ray imaging

Abstract EN

The aim of this study is to make a comparison between the different types of medical films associated with the treatment method, which will be between the blue films and green films that used in medical x-ray imaging and also to obtain the best radiographic image by evaluating the optimal parameters such as (kVp, mAs),exposure time and distance.

Related to property of the movie and many of these parameters or factors were tested in this experiment.

increasing of the transmitted x-ray beams brings the optical densities become higher.

This is because the less thickness of the medium phantom makes the interaction of the x-ray between them are less.

From the figures(6,5) blue and green films are showing that automatic processing shows a greater optical density rather than the manual.

Besides, from the figures(5,6) the optical densities of these two different types of films are also different to each other.

From here, the automatic green sensitive shows low optical densities value compare to the blue sensitive films while the manual, the green sensitive optical densities show higher values compare to the blue one.

The green shows higher optical densities because it contains low silver halide compare to the blue sensitive film and this cause the green sensitive film shows a good performance.

At the end we get the auto processing technique is found to be the best method to obtain the best quality image compare to manual processing technique.

The imaging using conventional x-ray machine KXO-50S/K5 is found to be better imaging equipment.

This study will explain the expected differences in radiographic image quality from different machine and different film processing (automatic and manual) by means of the RMI chest phantom was tested by two different values kVp and several mAs.

From the obtained result, it shows that the kVp at 50 and 60 are shows good radiograph quality with mAs 10 and 3.2 respectively, both of them show satisfying image quality on the blue films.

while green film at setting 50 kVp and 10 mAs showed good image compare to the 60 kVp and 3.2 mAs.

And it shows that 50 kVp and 10 mAs is suitable setting for this film.

For 60 kVp and 3.2 mAs gives results in overexposure of green-sensitive films, which has an adverse effect on the quality of images.

Thus it is shows that there are more expedient to use a green-sensitive screen with high resolving power and medium sensitivity.

Next, these experiments are repeated by using different processing.

Manually, green film still shows the good result compare to the blue film as same as result automatically.

After that, the optical density is measured for both manual and automatically processing for green and blue films.

From the results that it shown the thickness of Perspex is increased and the optical density for air stepwedge also increased.

This happens because as the thicker air stepwedge thickness, the less x-ray beam will be attenuated due to the thinner the phantom medium.

This means the transmitted x-ray beam that will be reached on the film will increase as the thickness of the air stepwedge increased due to the decreasing of the phantom medium thickness.

Consequently, the