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Jurnal Imejing Diagnostik
Published by Poltekkes Kemenkes Semarang
ISSN : 2356301X     EISSN : 26217457     DOI : -
Core Subject : Health,
Health Professions Medicine & Pharmacology
Jurnal Imejing Diagnostik (JImeD) memuat tulisan ilmiah dalam bidang radiologi berupa hasil penelitian dan non penelitian (konseptual). Jurnal Imejing Diagnostik (JImeD) terbit 2 kali dalam satu tahun yaitu pada bulan Januari dan Juli oleh Jurusan Teknik Radiodiagnostik dan Radioterapi, Politeknik Kesehatan Kemenkes Semarang. Jurnal Imejing Diagnostik (JImeD) memuat artikel ilmiah dalam bidang radiologi, meliputi : radiografi konvensional, digital radiografi, CT scan, MRI, kedokteran nuklir, radioterapi dan ilmu lainnya yang berkaitan dengan radiologi.
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol 1, No 1: January 2015" : 9 Documents clear
Optimisasi Field of View (FOV) Terhadap Kualitas Citra Pada T2WI FSE MRI Lumbal Sagital Fatimah Fatimah; Johannes Dahjono; Metria Riza Sativa
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.v1i1.28

Abstract

Background : Field of view (FOV) is one of paramaters in MRI that is possibly adjusted by a radiographer. Many various adjusment of FOV that are using for lumbar MR Imaging. This study is to determine the effect of variations in the value of FOV to the image quality and anatomical information.Methods : This is a quasy experimental research. The study was conducted with 1.5 Tesla MRI. Data were collected from three volunteers with 5 variations of FOV (17cm, 22cm, 27cm, 32cm and 37cm) which is totally 15 images acquired.  Images were evaluated according to the objective evaluation of SNR and CNR  by a software in the MRI machine. Quntitative measurements of SNR were conducted on corpus vertebrae, discus intervertebralis, medulla spinalis, cerebrospinal fluid (CSF) and ligamentum flavum respectively. While CNR measurements were on CSF-corpus vertebra, CSF-discus intervertebralis, CSF-medulla spinalis, medulla spinalis-corpus vertebra, medulla spinalis-discus intervertebralis and corpus vertebra-discus intervertebralis. For conspicuity, overall image contrast and artifacts were evaluated qualitatively by three radiologists scoring on the paper sheet based on the image of corpus vertebrae, discus intervertebralis, medulla spinalis, cerebrospinal fluid, ligamentum flavum. Quantitative data of SNR and CNR value were analyzed using Linier Regression and Correlation Spearman test. While radiologists scoring were analyzed using Friedman test and cross tabulation.Results : The results showed that FOV variations affect the image qualities of T2WI FSE sagital lumbar MR Imaging. FOV variations are significantly corelate to the SNR of corpus vertebra, discus intervertebralis, medulla spinalis, CSF and ligamentum flavum. FOV variations are also significantly correlate to the CNR value  of CSF-corpus vertebra, CSF-discus intervertebralis, CSF-medulla spinalis, medulla spinalis-corpus vertebra and medulla spinalis-discus intervertebralis (p values 0,05) with positive correlation.  But there is  no correlation between FOV variations  and CNR  at the corpus vertebra-discus intervertebralis (p values = 0,109).Conclusion : Based on these results indicate that overall image and artifacts are relatively similar for all value of FOV variations.  Optimal values of FOV for T2WI FSE sagittal lumbar MR Imaging is a FOV of  27 cm.
Pengaruh Variasi Pengaktifan Delay Bolus Triggering Terhadap Dosis Radiasi Pada Pemeriksaan CT Scan Thorax di Instalasi Radiologi RSUD Dr.Moewardi Rini Indrati; Mariyatun Mariyatun; Andrey Nino Kurniawan
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.v1i1.41

Abstract

Background : Examination of Thorax CT Scan in RSUD Dr.Moewardi is always conducted using bolus triggering technique, where delay of bolus triggering activation done to vary value between 5 - 10 second after contrast media administration using automatic injector with the reason to lessen radiation dose. Purpose of this research is to know influence of  bolus triggering activation delay to radiation dose as well as  to find out  maximal delay value of  bolus triggering activation delay which can be conducted at CT Scan Thorax examination.Methods : This research is experimental method. Data were collected from the observations and the direct examinations on the monitor screen using the CTDIvol dose calculation software. This research is carried out by recording the changes radiation dose value on CTDIvol by changing the value of  bolus triggering activation delay from 0, 2, 4,  6, 8, 10, 12 and 14 second. Data were analyzed using regression test.Results : The result shows that correlation between bolus triggering activation delay towards radiation dose with r = 0,970,  p value 0,001 and R2 = 0,940. The meaning 94% radiation dose influenced by bolus triggering activation. Delay with regresi equation, Y  = 308,252 - 18,821 DT, showing each every increase of delay bolus triggering activation delay equal to 1 second  will influence to descend dose radiasi equal to 18,821 mGy.Conclusion : Maximum delay to activated bolus triggering is 17 second.
Rancang Bangun Alat Bantu Fiksasi dengan Penanda Waktu Eksposi Untuk Pemeriksaan Radiografi Abdomen Akut Siti Masrochah; Yeti Kartikasari; Bagus Abimanyu
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.v1i1.3151

Abstract

Backgroud: Limitations in a radiographic projection of the Left lateral decubitus (LLD) ussually challanges most of the Radiografers who intent to apply the technique toward patients with acute abdoment clinical cases. Related problems that occasionally come up with the LLD projection are the fixed patient positioning and the waiting time it takes to keep patient in the same position. The poor quality of  the LLD radiograph and less imaged optimalisation of the free-air below the right diapragm lead to a dificult radiological interpretation. The study aims to design an aided patient fixation tool with its controlling timer used for the LLD projection; and to examine the the functional performance of the tool.Methods: the research is qualitative approached with an experimental study. Several steps following the reseach are creation of the master plan designs and selection of materials that  should be used to develop an appropriate aided patient fixation tool with controlling timer for LLD projection; evaluation of the 5 designed tool system components (seated patient, cassette holder, safety belt, electronic sensored movement, andthe timer); and qualitative testing of the tool function and veryfication. The 6 aspects of tool performances have been decided to be complianced indicators whereas 5 observers (expert Radiographers) blended in the evaluation of the aided tool, and the tool has firmed to meet its requirement if the total observer’s score is greater and equal to 2,00Results: In general, the resulted tool perfomance testing fulfilled the requirements of the tool functions as it used for some radiographic procedures of the acute abdoment-LLD projection. The tool performance scores of convenince and reliability equipment showed at 2,25 and 2,75 which meant that a general radiographic quality was looking good without any presense of the artifacts. Morover, the scores for timer and censored devices were 2,70 and 2,65 recpectively, by this clearly described  a proper function of timer control and indicator components. The total score for radiation safety evaluation contributed to the higest score amongst all aspects being assessed that was 2,80.Conclusion: The design of the aided patient fixation tool with controlling timer for LLD projection has not only met functional requirements but it has also proven to subtitute some limitations about maintaning good image quality when applied the LLD projection. Radiologic expertation on the LLD-radiograph of the acute abdoment obviously contributed to optimal clinical information
Desain Phantom Air Untuk Kalibrasi CT Number dan Keseragaman CT Number Pada Pesawat CT Scan Ary Kurniawati; Cholid Badri; Jeffri Ardiyanto
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.v1i1.3145

Abstract

Background: Callibration of  CT number and uniformity is very important to the CT QC program particularly when the program aims to ensure that the CT Scanner equipment operates within the manufacturer's specifications. Since the commercial CT QC phantom is not always available or affordable in the department, a simple, easy and cheap modified CT water phantom design could be useful to support further regular departmental CT QC program.Purpose: (1) to design , a simple and an easy to handle of the modified CT water phantom,  and (2) to verify its callibration and measurement functions based on to the gold standard of a commercial CT water phantom.Methods: This study is an experimental research laboratories, where a modified design of  CT water phantom is then compared to the comercial gold standard CT water  phantom. The commercial CT water phantom uses a cylindrical phantom that contains water with various diameter in sizes. In the modified CT phantom design, it filled with water as well, where the three different size in phantom diameters (15 cm, 20 cm and 32 cm recpectively) created for specific measurement purpose that of the CT Number and uniformity CT Number.Results: Calliberating the function of the modified CT phantom design resulted in the three observasional data. For all different phantom diameters (15, 20 and 32 cm) showed some variation about their CT number and homogenity. Most of the callibration and homogenity tests of the CT number in water deemed significant (cal. CT number for the 20 cm and 32 diameter phantoms, 0,001 0,05 and sig. 0,04 0,05 respectively), instead of that the uniformity test  of the phantom sized with 20 cm in diameter (0,432 0,05).Conclussion: A modified water CT phantom designed with 20 cm in diameter could be used for measurement of the CT number uniformity. Yet, measurements of the CT number callibration and uniformity needed to be consider againts from a failed measurement due to the phantom problem design with sizes at 20 and 32 cm in diameters.
Optimalisasi Citra dalam Penghitungan Calsium Scoring dengan Variasi Scan Type dan Slice Thickness (Studi Pendahuluan Dilakukan Dengan Menggunakan Modifikasi Phantom Thorax di RS Telogorejo Semarang) Bagus Dwi Handoko; Ari Suwondo; Jeffri Ardiyanto
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.v1i1.3152

Abstract

Background : Examination of Calcium scoring in Radiology Departement Telogorejo Hospital Semarang using CINE scan type and  recon phase images using a slice thickness of 2.5mm, this affect will be plaque with small size cann’t to calculate. Aim : The Purpose of this study was to determine the variation of parameters of calcium scoring MSCT scan examination right in calculating optimal plaque.Methods : The study was preceded by Pre experiments using a thorax phantom with an added 3-calcium artificial heart is likened to the RCA, LCX, LAD and have determined the weight and volume. Experiments with 10 patient samples by applying the best parameters from the pre experiment. Statistical analysis of the results of research conducted by Paired T-Test, while the assessment of the quality radiographs evaluated by an expert in this specialist radiology by providing anatomical criteria scores with 3 choices of items (not clear = 1, is quite clear = 2  and obvious = 3)Result : The volume of plaque is embedded in the thorax Panthom 900mm3. Results of pre experiments with hellical scan type and pitch of 0.5, 0.9, 1.3 in a score of plaque volume is 104mm3, 67mm3, 60mm3. While the scan type CINE with slice thickness 0.625mm, 1.25mm, 2.5mm produces a score of volume plaque is 880mm3, 878mm3, 867mm3. Further experiments were performed by applying parameters with the best result is CINE scan with variations slice thickness 0,625mm, 1.25mm, 2.5mm. To determine the best parameters assessment of image quality with the results on slice thickness 0.625mm was 2.2 (quite obvious), slice thickness 1,25mm scoring average of 2.7 (quite obvious), and slice thickness 2.5 mm average scoring 2.9 (obviously). While image noise on the slice thickness 0.625mm, 1.25mm, 2.5mm, namely 2.7(very high), 1.6 (low), 1.1 (low).Conclusions : Selected parameters that calculate optimal scoring calcium and low noise image for MSCT scan calcium scoring in Telogorejo Hospital Semarang is Scan type CINE with slice thickness variation 1,25mm
Penerapan Teknik Parallel Imaging Pada Pesawat MRI 0,35 Tesla Untuk Optimalisasi Kualitas Informasi Anatomi Pada MRI Lumbal Pembobotan T1WI dan T2WI Potongan Sagital Gatot Murti Wibowo; Dartini Dartini; Hari Prayitno
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.v1i1.3146

Abstract

Background : Parallel imaging is one of the MRI Scanning techniques used to reduce the overall scan time when the patients with unvoluntary movement being examined with a low magnetic field of 0,35 T.  This research aims to determine the difference between the clinical image quality of the conventional turbo spin echo (TSE) with mSENSE and that of the TSE with GRAPPA parallel imaging techniques from which resulting the MRI T1 and T2 Weighted Images (T1WI and T2WI) sagittal view of lumbar spines, and to define the techniques that clinically provide the most approriate anatomical information.Methods :  This experimental study is made performed by the MRI 0.35 T in which 10 patients who had hernia nucleus pulposus (HNP) desease participated in the experiments ramdomly. The appointed Radiologists blended in the image evaluation using an image checklist to assess the visualisation of anatomical organs on the resulted sagittal lumbar MRI T1WI and T2WI. The two non-parametric statistical tools, Friedman test and the post hoc Wilcoxon matched pairs test, is used to analyze all the data descriptively. Testing the resesearch hypotheses with 95% of confident interval is to proved the differences between resulted sagittal lumbar MRI T1WI and T2WI..Results : The results shown there is a significant difference on the image quality of anatomical information when conventional TSE, parallel imaging-mSENSE and -GRAPPA, with T1WI are applied in the imaging techniques. When those imaging techniques are employed to obtain T2WI, the result is not significant in  contrast.Conclusion : Good imaging techniques with adequate clinical image quality are ranked sequently as the conventional TSE, the  mSENSE and GRAPPA.
Perbedaan Kualitas Gambar MRI 0,3 Tesla Antara Metode Grappa dan Metode Perubahan Nilai Parameter dengan Metode Rutin (Studi Pada Pemeriksaan MRI Vertebra Lumbal Potongan Sagital T2 FSE RSUD Prof. Dr. Margono Soekardjo Purwokerto Pada Pasien Dengan Lumbar Panji Wibowo Nurcahyo; Ari Suwondo; Hermina Sukmaningtyas
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.v1i1.3153

Abstract

Background : Artefact degrade image quality. Motion artefact can be minimized by reducing scan time. The use of GRAPPA and change the value of TR, NEX and phase enchoding can reduce scan time. This study aims to determine the difference between MRI image quality of the GRAPPA method and routine method with change the value Phase enc. Dir., FOV phase, TR, TE, NEX, concatenation, base resolution, phase resolution and bandwidth by routine method MRI examination of lumbar spine sagittal T2 FSE in Prof. Dr. Margono Soekardjo hospital in patients with lumbar disorders.Methods : Quasi experiments with equivalent posttest only control group design in 25 respondents were obtained in consecutive sampling. Each respondent was given three treatments with different method. Qualitative assessment was done on the MRI images results of the third treatment. Presence or absence of an overview assessment results HNP, spondylosis and degenerative disc analyzed with Cochran test while the level of clarity of the ligamentum flavum, thecal sac, intervertebral disc, vertebral body and the spinal cord was analyzed by Friedman test.Results : Cochran test produces a p value 0,05, while the friedman test results were followed by post hoc analysis resulted p value 0,05. The highest mean value rank is 3 with obtained of the routine method but has a scan time 326 seconds, the GRAPPA activation performed (mean rank 1) then the scan time can be reduced by 144 second and routine method with change the value of some parameters can reduce 150 second with a mean rank 2.Conclusion : There is no difference reveal HNP, spondilosis and degenerative disc ability between GRAPPA method and routine method with change the value of some parameters by routine methodProf. Dr. Margono Soekardjo hospital, but levels of clarity ligamentum flavum, thecal sac, intervertebra disc, corpus vertebra dan spinal cord is difference. Routine method Prof. Dr. Margono Soekardjo hospitalproduce images with the best quality, but has a maximum scan time.
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

Abstract

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.
Optimalisasi Informasi Citra T1 W1 Post-Contrast Dengan Fat Saturation dan Pengaturan Time Repetition: Studi pada Pemeriksaan Magnetic Resonance Imaging Brain dengan Kasus Tumor Akhmad Haris Sulistiyadi; Ari Suwondo; Sugiyanto Sugiyanto
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.v1i1.3149

Abstract

Background: Fat saturation is an alternative technique to improve image information in T1 WI post contrast MRI of brain tumor. It can increase lesion conspituity by suppressing normal tissue’s signal. To optimize image information by using fat saturation, selection of Fat Saturation type and Time Repetition (TR) value are important.Objectives: to analyze the differences in T1 WI post-contrast image information in MRI of brain tumor in various type of Fat Saturation and TR value.Methods: Experimental study with factorial design conducted in  Telogorejo Hospital-Semarang. Nine combinations (9 groups) of three Fat Saturation types (none, weak, and strong) by three TR values (700 ms, 750 ms, and 800 ms) were given to 12 patients of MRI brain tumor. Image informations were assessed by measuring  SNR (white matter, gray matter, lesions, surrounding tissue), CNR (white matter- gray matter, white matter-CSF, gray matter-CSF, lesion- surrounding tissue), lesion conspituity, artifacts, and contrast image in general.Results: The results showed that there were significant differences in SNR of white matter, gray matter, and in surrounding tissue (p 0.05); CNR of white matter-CSF, gray matter-CSF, lesion-tissue surrounding tissue (p 0.05); and lesion conspituity (p 0.05) between groups with no sat fat, weak fat sat, and strong fat sat. There were significant differences in SNR of white matter, gray matter, and surrounding tissue (p 0.05); and CNR of white matter-CSF, gray matter-CSF, and lesion- surrounding tissue (p 0.05) between group TR 700 ms, TR 750 ms, and TR 800 ms.Conclusion: Combination of strong fat saturation and TR 700 ms can produce the most optimal image information.

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