Akhmad Haris Sulistyadi
Poltekkes Kemenkes Semarang

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Jurnal Imejing Diagnostik (JImeD) Vol 5, No 1: January 2019
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v5i1.4012


Background: Abdomen radiography is a radiographic examination procedure in the abdominal area to show abnormalities that occur in the tractus digestivus / gastrointestinal. Radiographic examination of the abdomen is directly related to the reproductive organs that are sensitive to radiation. The purpose of this study was to find out the optimization technique of AP projection radiographic Abdomen examination with the 10 kV rule method, knowing the radiation dose received by the reproductive organs using the 10 kV rule method, knowing the quality of radiographs produced on AP projection radiographic examination using the 10 kV rule method.Methods: Jenis penelitian yang digunakan adalah penelitian Pre Eksperimental yaitu dengan melakukan pengukuran terhadap kualitas hasil radiograf dengan metode kenaikan 10 kVruledisertai penurunan mAs 50%. Pengukuran dosis radiasi dengan menggunakan alat ukur radiasi ray safe X-2, sedangkan untuk pengukuran kualitas dilakukan secara kuantitatif nilai pixel value dan visual citra.Method: The type of research used in this study is Pre Experimental research, namely by measuring the quality of the results of the radiograph by increasing the method of 10 kV rule with a decrease of 50% mAs.Results :The results of radiation dose measurements received by the AP projection reproductive organs with standard exposure factors (1) are kV 70 and mAs 32 is 8.33 mGy. In the exposure factor (2) kV 80 and mAs 16 is 5.50 mGy. Exposure factor (3) with kV 90 and mAs 8 radiation doses received at reproductive organs are 3.47 mGy and exposure factor (4) with kV 90 and mAs 4 produce radiation doses of 1.18 mGy. The highest contrast value (Δ pixel value) of each exposure factor is the exposure factor (2) kV 80 mAs 16, then the exposure factor (3) kV 90 mAs 8. The lowest Contrast value ((pixel value) is the exposure factor. (4) kV 100 mAs 4. The results of radiographic quality assessment on Abdomen examination of AP projection show that by visual assessment of radiographic specialists showed that the exposure factor that produced the most optimal Abdomen radiography was exposure factor 3 at kV 90 and mAs 8.Conclusion: Optimal abdominal radiographic examination with a low radiation dose can use exposure factors of kV 80 mAs 16 and kV 90 mAs 8.
Image Quality Of T2W TSE Cartesian Versus T2W TSE Blade, A Quantitative Analysis On Axial Cervical MRI Dwi Rochmayanti; Emi Murniati; Fatimah Fatimah; Akhmad Haris Sulistyadi
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.v8i2.8955


Backgroud: blurring artifact is an issue in axial cervical MRI using T2 Turbo Spin Echo (TSE) weighted Cartesian. T2W TSE BLADE is potential to substitute its shortcomings. This study aims to analyze the image quality and artifacts between T2W TSE Cartesian and T2W TSE BLADE on axial cervical MRI examination and to determine the better sequence in producing image quality.Methods: this is a quantitative research with descriptive approach. 7 volunteers were scanned for cervical axial examination with T2W TSE, T2W TSE Cartesian and T2W TSE Blade. Images were processed in MathlabTM. SNR of intervertebral disc, spinal cord and CSF were measured using ROI. Image resolution were find out from pixel spacing in DICOM info. Blurring artifact were analyzed by comparing the signal of blurred area to the background noise. Data were analyzed using descriptive statistics.Results: SNR of T2W TSE Cartesian and T2W TSE BLADE were 22,144 and 17,532 (intervertebral disc), 20,952 and 16,786 (spinal cord), and 16,717 and 12,883 (CSF) respectively. Image resolution (mean) were 0,391 pixel/mm (T2W TSE Cartesian) and 0,625 (T2W TSE BLADE). Blurring artifact were 8,161 (T2W TSE Cartesian) and 6,826 (T2W TSE Blade).Conclusion: T2W TSE Cartesian was superior in pixel intensity and SNR, while the blade technique was superior in terms of spatial resolution and artifacts reduction. Thus, it is recommended to be applied in clinical field if the SNR or image detail is the priority.