Background : CT-Scan is an imaging modality in the field of diagnostics, especially radiology that produces large radiation, so should pay attention to aspects of protection and radiation safety for radiographers and public. At the CT-Scan examination room at Radiology Installation of RSUD Ir. Soekarno has made door replacement and addition of 2 mm Pb on the window and has not done measurement of exposure rate of re-radiation.This study aims to determine the value of the radiation exposure rate and the safety of the examination room on radiation exposure for radiographers and public reffering to the publication of NCRP no. 147 on the design of protective structures for health facilities Methods: This type of research is quantitative with survey approach. This research was conducted in May 2018. Data collection was done by observation, documentation, measurement of exposure rate at a number of points. Data analysis was done descriptively by comparing data with NCRP report no 147. Result: The radiation exposure measurements resulted in excessive radiation exposure in the controlled area at point A (the Pb glass in the operator’s room) of 29,5 µSv/h the uncontrolled area at point 1 (patien’s entrance) of 1,75 µSv/h. This value exceeds the recommendation value of NCRP no. 147 at controlled area of 2,5 µSv/h and uncontrolled area of 0,5 µSv/h. Radiology Installation Ir. Soekarno Sukoharjo Hospital regency is located at an altitude of 103 mdpl the background radiation exposure value of 1,225 µSv/h, it exceeds the requirements of the background exposure rate value according to UNSCEAR for a height of 0 meters from sea level is 0.03 μGy/h. Leakage of radiation exposure occurring at point  Conclution: point A isa Pb glass in the operator’s room and at point 1 is patien’s entrance is not safe for radiographers and public because it exceeds the limit of radiation exposure rate value which is allowed

Background : Flow compensation is one technique that can reduce artifacts due to the flow of cerebrospinal fluid in MRI examination of the cervical in cases of Hernia Nucleus Pulposus specifically in T2 Weighted Fast Spin Echo (FSE) sequence images. Method : This research is quantitative study with an experimental approach. This study using 10 pasient  at Cempaka Putih Hospital in Jakarta. Wilcoxon test to determine the level of cervical MRI anatomical information distribution in the case of  HNP between using flow compensation and without flow compensation, mean rank value to get the better image information. Result : From the results of statistical tests, it is known that there are differences in Cervical MRI image information in the HNP case with the T2W FSE between the use of flow compensation and without flow compensation as indicated by the p-value 0.000 (p-value ≤ 0.05), this difference is due to flow compensation which can suppress flow artifacts on objects resulting in a better picture. The mean rank value in the overall anatomy of the MRI Cervical MRI image shows a better value using flow compensation with the highest value in the anatomy of the intervertebral disc, CSF, and spinal cord, 5.00 in axial view. Whereas the sagittal view in the anatomy of the vertebral corpus and spinal cord show the same value between using flow compensation and without flow compensation. Conclusion : There are differences in overall anatomical image information of MRI Cervical using flow compensation and without Flow compensation except corpus vertebralis and spinal cord in sagital view.

Background : Interslice gap is the distance between slices, usually its value is based on the percentage of slice thickness, interslice gap is one of the parameters that can affect the quality of MRI image. Rarely are radiographers willing and able to manipulate the value of the interslice gap, so it can produce a good image. The purpose of this study is, to determine the effect of interslice gap variation on quality on MRI brain pieces axial T1WI spin echo, to know the difference of interslice gap variation to anatomical image information on MRI brain T1WI spin echo axial, to know the value of interslice gap which has an optimal anatomical image information on MRI brain T1WI spin echo axial. Methods : This type of research is quantitative and qualitative with an experimental approach. The research was conducted at the General Hospital of dr. Sardjito Yogyakarta. The data were 32 images of MRI brain T1WI spin echo from the variation of interslice gap used 0%, 10%, 20%, and 30% from slice thickness 5 mm. The test was performed on image quality that was statistically analyzed by linear regression test. While for information of anatomical image analyzed with Friedman test, from friedman test can be known information of best anatomical image, seen from mean rank. Results : The results of this study indicate that there is an effect of interslice gap variation on quality on MRI brain of T1WI spin echo axial pieces, seen from p value of SNR (0.010) and CNR (0.001) <0.05. In addition there is influence, there is also differences in anatomical image information on MRI brain pieces axial T1WI spin echo, seen from p value that is 0.001 <0.05. seen from the mean rank interslice gap 10% has the best anatomical image information. Conclusion : There is an effect of interslice gap on image quality on MRI brain axial of T1WI spin echo, there is difference of MRI brain anatomical image information of T1WI spin echo axial with interslice gap variation, interslice gap 10% value has the most optimal information.

Background : MRI Pelvic examination with cervical cancer case using the fat suppression SPAIR method to suppress fat to get an optimal picture. In SPAIR, there are three variations of fat suppression namely Strong Supression Level, SPAIR Supression Level Medium and SPAIR Supression Level Weak. At the Radiology Installation at Saiful Anwar Malang Hospital, the pelvic MRI examination used a weak SPAIR sequence while Dr. Sardjito uses strong SPAIR. This study aims to determine differences in information on pelvic MRI anatomical images and to find out better information on anatomical images on MRI pelvis T1 weighted sagittal sequences in cervical cancer cases with variations in Supression Level Spectral Adiabatic Inversion Recovery (SPAIR) Methods : The research used quantitative research method with experimental approach where is done in Radiology Installation of Dr. Sardjito Hospital Yogyakarta. The date were collected by examining MRI Pelvic with cervical cancer cases in 6 patients. Then scanning isdone on the sagittal piece with SPAIR Strong T1 Sequence, SPAIR Mediumand SPAIR Weak. Presented to three radiologist doctors of assess. Once the image judged by the three respondents, the the assessment results are summarized and then in a statistical test using SPSS version 16.0 with the method of friedman. Results : The result showed that there were significant diference of anatomical  information between the SPAIR Strong, SPAIR Medium and SPAIR Weak on the MRI pelvic exmination of the sagittal cut in case of cervical cancer with p-value 0.003 (p<0.005). the SPAIR Weak variation has better anatomical information in MRI Pelvic examination of the sagittal cut in case of cervical cancer with  Mean Rank value of SPAIR Weak variation 3.00, followed by SPAIR Strong sequence with value 1.92 and low SPAIR Medium sequence with value 1.08. Conclusion : Significant values ​​were obtained with p value = 0.003 (p <0.05) which means that there is information on anatomical information on MRI pelvis T1 weighted sagittal sequences in cervical cancer cases with the Spectral Adiabatic Inversion Recovery (SPAIR) Level suppression. Information on better anatomical images on MRI pelvis T1 weighted sagittal sequences in cervical cancer cases with the most optimal variation of Adiabatic Inversion Revovery (SPAIR) Suppression, namely weak SPAIR with mean rank of 3.00.   Keywords : SPAIR, Cervices Cancer, MRI Pelvi

The effort to ensure radiation safety guarantees for officers and the general public on the use of fluoroscopy baggage scanner is used at the port passenger terminal due to using ionizing radiation. The aim to be achieved is to find out the management of the use of ionizing radiation and related radiation protection according to national and international standards. The research method in this study was an observational survey by observing, interviewing and documenting safety facilities and procedures by performing management for operating fluoroscopy baggage scanner devices at the Port. Based on the results of this study: no operational license for fluoroscopy baggage scanner, radiation workers operator didn’t certify, they don’t have personal monitoring dose, they get health monitoring but not well documented, radiation testing has not been carried out for radiation workers and passengers. Radiation exposure measurements using surveymeter detected both for passengers and radiation workers around the fluoroscopy baggage scanner device was declared safe because the radiation exposure rate detected was below 1 µSv/h (FDA), PP No. 33 of 2007, Perka Bapeten No. 7 of 2009 and Perka Bapeten No. 4 of 2013. But it can be optimized by lead glass or lead apron.