Garuda - Garba Rujukan Digital

Analisa Penerimaan Dosis Radiasi Permukaan Kulit pada Pemeriksaan Radiografi Thorax Proyeksi Postero Anterior (PA) Darmini Darmini; Arum Dwi Afriyani; Dwi Rochmayanti
Jurnal Imejing Diagnostik (JImeD) Vol 1, No 1: January 2015
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v1i1.3147

Background:Increasing tube voltage which balanced with decreasing tube current and exposure time, it can decrease patient dose. base on optimization principle of radiation protection and radiation safety, it must be some effort in order to make patient dose minimally as it needed to get diagnostic information. The purpose of this research are to find out radiation dose on kV which usually use in Radiology Departement, radiation dose on kV with higher than usual, and two find out radiation dose acceptance on both of technique was appropriate with reference dose that set by BAPETEN.Methods : Type of this research was quantitative research with experimental approach. This research took place in laboratory 2 JTRR Semarang. This research had been done by illumination chest phantom which completed with TLD (Thermoluminisense Dosimeter) placed correct on central point on MSP (Mid Sagital Plane) as level as angulus inferior scapulae. Analyze data had been shown used tables by average accounting, compare between acceptance radiation dose on kV which usually use in Radiology Departement and on kV with higher than usual, and compare result radiation dose with reference dose that set by BAPETEN.Results :The result of this research shown that there was difference acceptance radiation dose entrance skin on chest examination in postero-anterion projection on tube voltage which usually use in Radiology Departement, radiation dose on tube voltage with higher than usual. The average value of radiation dose on kV usually use in Radiology Departement was 0,059 mGy, while on tube voltage with higher than usual the average value of radiation dose was 0.020 mGy. The result of testing that used kV with higher than usual, acceptance radiation dose entrance skin which accepted was lower than on tube voltage usually use in Radiology Departement. The result of radiation dose on tube voltage usually use in Radiology Departement although used tube voltage with higher than usual, its value were lower than reference dose, it was 0,4 mGy that set by BAPETEN.Conclusion : Based on these results, using a higher tube voltage than is usually very useful to reduce the radiation dose received by the patient, then this technique should be applied in Radiology for the examination of the thorax with the PA that has a projection plane X-ray modality with high capability above 100 kV.

Analisis Pemilihan Region of Interest (RoI) pada Magnetic Resonance Spectroscopy (MRS) Anita Nur Mayani; Gatot Murti Wibowo; Darmini Darmini
Jurnal Imejing Diagnostik (JImeD) Vol 2, No 2: July 2016
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v2i2.3172

Background: Magnetic Resonance Spectroscopy (MRS) is an advance examination of MRI which produces a spectra describes metabolic information of tissues. ROI setting was very important in producing the spectra with diagnostic value that called Full-Width at Half Maximum (FWHM). In clinical applications, Radiographers select several ROIs in obtaining FWHM values without any specific benchmark which in turn directly affects on the accuracy of staging brain tumor. This study aims to examine the FWHM profiles based on the ROI selections, and to determine the effect of selected ROIs to FWHM values.Methods: This research was a quantitative study with an experimental approach. Data were assessed by an expert Radiographer during a period of 30 days on June 2016 in Radiology Department of Siloam Kebon Jeruk Jakarta Hospital using a specific bottle phantom MRI 2000 ml. The phantom was scanned with 1.5 Tesla MRI scanner, wuth various selection of the ROIs sized 20 mm, 25 mm, 30 mm, 35 mm and 40 mm at the centre position, 12 o'clock position, 3 o'clock position, 6 o'clock position and 9 o'clock position. Data was analyzed using linier regression test of SPSS V.16 software. The confident interval of influence of the ROI size in producing FWHM values was 95%.Results: The results showed the optimum FWHM values, 12-20, produced from the ROI size of 20-30 mm at the centre position. Regression analysis showed significant result (p-value 0.05), which was null hypothesis was rejected. It can be concluded that the ROI size setting effected on the resulted FWHM values. The smaller ROI size, FWHM value will decrease with higher homogeneity and vise versa.Conclusion: Optimum FWHM value was produced by ROI size of 20 – 30 mm at the centre position. There was influence of ROI size setting to FWHM value.

Analisis Variasi Rekonstruksi Increment Overlapping terhadap Informasi Citra Anatomi pada Pemeriksaan MSCT Nasofaring dengan Klinis Karsinoma Jeffri Ardiyanto; Darmini Darmini; Widiya Purnama Sari
Jurnal Imejing Diagnostik (JImeD) Vol 3, No 1: January 2017
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v3i1.3186

Background: In Nasopharyngeal MSCT examination, the radiologist wants optimal image in order to evaluate the characteristics of the tumor, bone destruction due to a tumor, the extent of tumor invasion and the detection of regional metastases that serve as guidelines in determining the clinical stage in patients with nasopharyngeal carcinoma. So setting the scan parameters rekostruksi increments during the process multiplanar reconstruction (MPR) image on Nasopharyngeal MSC T will produce optimal images for diagnosis enforcement. Overlapping reconstruction increment is the distance between the image that has been reconstructed on the data volume that is made smaller than the size of the slice thickness is used. Selection of the reconstruction value increment overlapping usage right has an advantage in generating image anatomical information better for image noise becomes lower and accurate for diagnosing small structures, especially of hidden nasopharynx anatomy and difficult to detect. The purpose of this study was to determine the influence variation reconstruction increment overlapping to the anatomical information image on nasopharyngea MSCT l examination with the carcinoma clinical and determine the best value reconstruction increment overlapping that can provide optimal anatomical information image on nasopharyngeal MSCT examination with the clinical of carcinoma.Methods: This research was quantitative research with pre-experimental approach with one shoot case study method. This research was carried out by means of SIEMENS "SOMATOM EMOTION" - 16 slice in Installing Radiodiagnostic Hospital Dr. Soetomo Surabaya . The data in the form of a data volume of 10 patients in the sample with setting 3 mm slice thickness and reconstruction increment given the variation of the overlapping 30% of slice thickness (0.9 mm), 40% of the slice thickness (1.2 mm) and 50% of the slice thickness (1.5 mm) on MSCT nasopharyngeal examination with the clinical of carcinoma. Assessment anatomical information performed by the two respondents or reviewer. The data analysis was testing the influence with the simple linear regression tets and to determine the value of reconstruction increment overlapping optimal use friedman mean rank test.Result: The results showed a influence of variation reconstruction increment overlapping to the anatomical information image on nasopharyngeal MSCT examination with the clinical of carcinoma with a significance level of p = 0,000 (p 0.05). The best value reconstruction increment overlapping that can provide optimal anatomical information image on MSCT nasopharyngeal examination with the clinical of carcinoma is a reconstruction increment overlapping 50% of the slice thickness 3 mm (1.5 mm) with a mean rank in the axial slice and coronal slice image of 2.61.Conclution: There are influence of variation reconstruction increment overlapping to the anatomical information image on MSCT nasopharyngeal examination with the clinical of carcinoma with a significance level of p = 0,000 (p 0.05). Reconstruction increment overlapping 50% of the slice thickness 3 mm (1.5 mm) is a best value that can provide optimal anatomical information image on nasopharyngeal MSCT examination with the clinical of carcinoma.

Analisis Image Noise dan Nilai Dosis Radiasi Penggunaan Aplikasi Care Dose 4D dan Non Care Dose 4D pada Pesawat MSCT Siemens Tito Aditya Resmana; Darmini Darmini; Sigit Wijokongko
Jurnal Imejing Diagnostik (JImeD) Vol 3, No 2: July 2017
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v3i2.3196

Background : One effective technique is contained in a CT Scan to decrease the amount of radiation dose that is received in the use of automatic exposure control (AEC). AEC system of Siemens equipment is called Care Dose 4D. The research is based on unused of the application Care Dose 4D on CT Scan Imaging. The purpose of the research is to determine the differences of image noise and the differences of radiation doses (CTDI) using care dose 4D and Non Care Dose 4D in Siemens MSCT.Methods :The research was quantitative study with experimental approaches that is tested on four water phantom size type. Analysts data is done by statistical tests of Paired T-Test Samples to test the hypothesis and the level difference image information. In this statistical analysis is determined the level of confidence (level of Significance) with a value of α = 0.05.Results : On the using of Nasopharing protocol for children with 130 kV and 130 mAs parameters, using of Care Dose 4D has ability to decrease the image noise value is compared with non Care Dose 4D application. While the adult Nasopharing protocol with 130 kV and 220 mAs parameters, Care Dose 4D doesn’t provide enough impact in the reduction of image noise value if compared with conventional techniques or without using Care Dose 4D applications. Using of children nasopharing protocol application Care Dose 4D even increase radiation closes high enough value in CTDI vol that is 5,03 mGy, but using Nasopharing Care Dose 4D applications for adult can decrease radiation doses high enough value in CTDIvol, that is 2,64 mGy.Conclusion : On the use of children nasopharing protocol application Care Dose 4D even increase radiation closes high enough value in CTDI vol that is 5,03 mGy, while the adult Nasopharing using Care Dose 4D applications can decrease radiation doses high enough value in CTDIvol, that is 2,64 mGy.

Analisis Informasi Citra Antara Sekuens T2 FRFSE dengan T2 Propeller pada pemeriksaan MRI Cervikal Potongan Axial dengan Pesawat MRI GE Signa 1,5 T Sri Adhi Lukito; Darmini Darmini; Emi Murniati
Jurnal Imejing Diagnostik (JImeD) Vol 3, No 2: July 2017
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v3i2.3197

Backgroud:research has been done on the difference of image information for T2 FRFSE sequences and T2PROPELLER in Radiology Installation of General Hospital Dr Moewardi. The aim of this study is to determine THE differences of the image information between T2 FRFSE sequences and T2PROPELLER sequences and determine the best sequence between T2 PROPELLER with T2 FRFSE in cervical MRI examination of Spine Axial Slice.MethodsThis research is a quantitative study with experimental approach in Radiology Installation Dr. Moewardi Hospital. Data is collected on examination MRI Cervical in 15 patients, after a Cervical MRI scanning with sagittal slice T2 FRFSE sequences, and then performed scanning T2 PROPELLER sequences on Axial slice. Presented to the three doctors radiologist to assess. Once the image judged by the three respondents, the data analyse by using SPSS 17.0 with Wilcoxon test.Results:the result showed obtained significance value 0,001 or p value 0,05 Which means that there are differences image information between T2 FRFSE sequences and T2 PROPELLER sequences. Sequens T2 PROPELLER better than sequens T2 FRFSE in MRI CervicalAxial slice.Conclusion:Mean value of the same rank on the anatomy of the vertebral body and the soft tissue of the neck are 5.50 and 4.00 , while the mean rank differently on intraforamen structure is 6.5 , nerve root is 5.56 , so that the spinal cord was 6.15 T2 PROPELLER still better.

Title

Found 5 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 5 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 5 Documents
Search