Andrey Nino Kurniawan
Poltekkes Kemenkes Semarang

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Journal : Jurnal Imejing Diagnostik

CR Image Optimization and Radiation Dose Limitation With Collimation Adjusting on Cervical Radiography Agustina Dwi Prastanti; Bagus Abimanyu; Andrey Nino Kurniawan; Salis Nurbaiti
Jurnal Imejing Diagnostik (JImeD) Vol 8, No 1: JANUARY 2022
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v8i1.8259

Abstract

Background: Radiological examination in cervical services, Radiographers often opening the collimation wider of the size of the imaging plate for fear of being cut. This is done because it is supported by the image cropping facility on the CR. So there is a habit of opening the collimation width as wide as the imaging plate, which is often done with the assumption that it is better to widen the collimation than cut off the object. Obviously this will increase the radiation dose in patients with basic limitations. According to ICRP, patient safety must refer to the principle of radiation protection ALARA namely in the shortest possible time to get quality radiographs and patients receive the most minimum radiation exposure as possible.Methods: This research is a descriptive analytic research conducted with a cross sectional approach. The study was conducted by varying the radiation field area to be used for cervical examination. There are 10 variations of collimation area with 3 (three) exposures in each collimation. Then measured contrast, noise and radiation dose. Radiation dose is calculated by means of a babyline device.Results: The results showed that the collimation setting did not affect contrast radiography in CR because collimation was not the main factor that could affect contrast radiography on CR. The collimation setting on cervical radiography has an effect on the radiation dose, so it is necessary to adjust the collimation to get the minimum dose possible. The most optimal collimation area on cervical radiographic examination was obtained at a size of 12 x 24 cm with the smallest noise reception and dose compared to others and had higher contrast. Average contrast value achieved was 0.45 with a dose of 39.23 µGy.Conclusion: The collimation setting on cervical radiography has an effect on the radiation dose, so it is very necessary to adjust the collimation to get the minimum dose possible. The most optimal collimation area on cervical radiographic examination is obtained at a size of 12 x 24 cm with the smallest noise reception and dose compared to others and has a higher contrast.
Informasi Diagnostik Pemeriksaan Appendikografi Oral dan USG dalam Menegakkan Diagnosis Appendisitis Agustina Dwi Prastanti; Darmini Darmini; Andrey Nino Kurniawan
Jurnal Imejing Diagnostik (JImeD) Vol 7, No 1: JANUARY 2021
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v7i1.6651

Abstract

Background: Patients with suspected appendicitis are always asked by the sending doctor (Pediatric Surgeon) to ask for an oral appendicography examination without seeking other investigations such as ultrasound or CT scan. Whereas in the oral appendicography examination, false negative often occurs so that the patient is exposed to radiation several times until the barium reaches the caecum area and no more barium is still in the small intestine. Compared to the oral appendicography examination, ultrasound examination is easier in patient preparation, cheaper in terms of cost and more safety against the dangers of X-ray radiation.Methods: This research is a descriptive analytic study conducted with a cross sectional approach. The study was conducted by providing interventions for ultrasound examination before carrying out an oral appendicography examination. Ultrasound examination of the appendix is an examination using ultrasound waves with a frequency of 5-7.5 MHz or 2-4 MHz to diagnose appendicitis. Oral appendicography examination is a radiological examination to confirm the diagnosis of appendicitis using 100 grams of barium sulfate contrast medium diluted to a volume of 200 ml that is administered orally.Results: Diagnostic information obtained on oral appendicography examination of suspected appendicitis in radiology department Roemani Hospital, among others, can show the presence of calcification and the length of the appendix organs can be measured. Diagnostic information obtained on ultrasound examination of suspected appendicitis, among others, can show the presence of debris (pus), can evaluate the thickness of the intestinal wall and its vascularity.Conclusion: Ultrasound examination for suspected appendicitis is the first choice in diagnosing appendicitis than oral appendicography because it can be done in a faster, safer, more convenient and non-invasive manner and the cost of ultrasound is cheaper than oral appendicography.
EXTERNAL RADIOTHERAPY PROCEDURE OF THYROID CANCER WITH MASS MALIGNANT THYROID IN RADIOTHERAPY INSTALATION FACILITY OF RSUD DR. MOEWARDI SURAKARTA Himawan Setyono; Darmini Darmini; Khumaidi Khumaidi; Andrey Nino Kurniawan
Jurnal Imejing Diagnostik (JImeD) Vol 4, No 1: January 2018
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v4i1.4008

Abstract

Background: External radiotherapy for thyroid cancer, generally was conducted with 3 exposure area technique, where as in thyroid cancer case with mass malignant thyroid, treatment in Radiotherapy installation facility of RSUD Dr. Moewardi Surakarta used different technique that was by five exposure area in two step. The purposes of this researchwerte to know radiotherapy treatment of thyroid cancer with mass malignant thyroid, the reason of two step exposure and the reason of using direct AP-PA exposure area.Methods: The method of this research was qualitative researchwith case study approachment by observing, interviewing with radiation oncologist doctor, radiotherapy radiographer and medical physicist, and reviewing patient medical record document, simulator image data, treatment planing system resultand patient exposure data. For data analyzing, researcher used interactive model.Results: The result of this research showed that external radiotherapy for thyroid cancer with mass malignant thyroid in radiotherapy installation facility of RSUD Dr. Moewardi Surakarta is using convensional simulator, teleterapy Cobalt-60 machine, and five exposure area technique in twop step exposure. The first step was AP-PA direct exposure and second step were AP supraclavicula and left-right lateral.Conclusion: The reason of two step exposure technique use is for optimalization of therapeutic ratio, whereas the purpose of AP-PA exposure area in this technique is to maximizing dose on mass.
Optimalisasi Tegangan Tabung (KvP) Terhadap Kejelasan Informasi Anatomi Dan Dosis Radiasi Pada Pemeriksaan CT Scan Kepala Area Basis Cranii Agustina Dwi Prastanti; Yeti Kartikasari; Robets Pribadi; Andrey Nino Kurniawan; Dwi Rochmayanti
Jurnal Imejing Diagnostik (JImeD) Vol 8, No 2: JULY 2022
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v8i2.9370

Abstract

Background: Tube voltage (kVp) is one of the exposure factors on a head CT scan that can be varied to achieve a minimal radiation dose. Radiology installation of Bhakti Wira Tamtama hospital has a new CT scan modality that never variation its tube voltage. The variation of tube voltage is 80 kVp, 100 kVp, and 120 kVp. The aim of this research is to know and to analyse the most optimize tube voltage which can produce the best anatomy clarity and has the lowest radiation dose on a head CT scan examination of the base skull area that dominates CT scan examination.Methods: This research is descriptive analytic research conducted with an experimental approach. The study was conducted by varying the tube voltage to be used for head CT scan examination. There are 3 variations of tube voltage 80 kVp, 100 kVp, and 120 kVp where one variation contains 16 images for analyzing the clear anatomy of the base skull area. Then assessed by radiologists as the respondent. Data was analyzed by scoring where score 1 is not clear, score 2 is clear and score 3 is very clear. Radiation dose was obtained from CTDI and DLP records.Results: The results showed that there is no difference in anatomy clarity between variation of three tube voltage with p value 0,135. The anatomical clarity assessed includes anterior skull base, central skull base (fossa cranial middle, sphenoid, temporal bone, petrosous ridge), anterior clinoid processes, posterior margin of the lesser sphenoid wings, anterior and superior rim of the greater sphenoid wings, mastoid, and posterior skull base. All of them is very clear at 100 kVp and 120 kVp with value 100%. But at 80 kVp assessed clear at anterior and posterior skull base. So the value of anatomy clarity at 80 kVp is very clear only 71%. The effect of the difference in tube voltage on the radiation dose on a head CT scan of the base skull area showed a difference in the decrease in radiation dose from 120 kVp to 100 kVp for CTDI 39.9% and DLP 40.19%. There was a decrease in radiation dose from 100 kVp to 80 kVp for CTDI 52% and DLP 49.88%.Conclusion: The tube voltage setting on head CT scan examination of the base skull area can be applied with 100 kVp because this is evidenced by the same total score at 100 kVp and 120 kVp, which is 100% is very clear, while at 80 kVp tube voltage only 71% is very clear. And the radiation dose at 100 kVp is lower than 120 kVp.