Abstract:
Columna Vertebrae Cervical Radiography using Right Posterior Oblique (RPO) projection was performed at an angle of 15o to 20o cranially. This angle has a fairly large angle of the beam direction, so there is no standard angle of value to obtain optimal anatomical information. Therefore, the authors are interested in varying the angle of 15 ° to 20 ° in order to get the optimal angle in the examination of the Cervical Vertabrae Columna with Right Posterior Oblique (RPO) projection.
This study using a quantitative method with a survey approach, the study was carried out to determine the anatomical comparison of the Cervical Columma Vertebrae in the figure the optimal angle for examination of columma vertebrae cervical RPO projection. Researchers used Phantom head with an FFD of 100 cm, and exposure factor of 62 Ky and 22 mAS. Imaging was done once at each angle.
In this examination there was no difference in the anatomical information of the cervical vertebrae at angles of 15 °, 16 °, 17 °, 18 °, 19 ° and 20 ° with a value of 0.172 which was carried out using 6 times of exposure then obtained radiographic results and a questionnaire assessment was assessed by 1 radiology doctor. The most informative angle to show the cervical vertebrae of the right posterior oblique projection is that this angle of 15 ° is considered good because the results of the anatomy at an angle of 15 ° show anatomy c4 - c7 using phantoms, visible foramen intervertebralis, visible intervertebral disc, clearly visible spinous process and the corpus vertebrae appear. After getting the Friedman test results with the highest mean range value, namely 4.62. On the other hand, the projections of the columna of the cervical vertebrae allow this part to be obscured in the anatomical information.
