CT-Scan Image Optimization with Tube Current Variation in Some Kernel Filters Based on Signal to Noise Ratio (SNR) Value

Tutik Mustafidah, Riries Rulaningtyas, Akhmad Muzammil, Katherine .

Abstract


Computed Tomography Scan (CT-Scan) is a diagnostic tool that determines human organs using x-rays, contemporary tomography, and computational procedures. As a result, an optimal image is required in order for the object examination to be appropriately diagnosed. Based on the Signal to Noise Ratio (SNR) value, this study attempts to optimize CT-Scan image with tube Current Variations on Several Kernel Filters. The goal is to understand the influence of variations in tube currents on numerous filter kernels on image quality on CT-Scan based on SNR, as well as the value of tube current and kernel type. This study begins by scanning the water phantom with variations of tube currents of 150 mA, 200 mA, 250 mA, and 300 mA, a total of three scans for each tube current variation to obtain 12 raw data. Furthermore, the filter step employs two types of kernel filters, soft and edge, for each raw data. The filtered data is searched for Region of Interest (ROI) on the object and background in order to obtain the signal value (mean) and noise (standard deviation) in the image, which can then be used to determine the SNR value. The SNR value demonstrates that differences in tube currents and kernel filters have an impact on the CT-Scan image’s quality. The use of the Soft kernel filter and a tube current of 300 mA produced the best results with the maximum SNR.


Keywords


Tube Current; Kernel Filters; Region of Interest (ROI); Signal to Noise Ratio (SNR)

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References


Katherine, Rulaningtyas R, and Ain K. CT Scan Image Segmentation Based on Hounsfield Unit Values Using Otsu Thresholding Method. J. Phys.: Conf. Ser. 2021, 1816 012080

Myrsini S, Nefeli AP, and Constantinos D. The contribution of Computed Tomography for the planning of Transcatheter Aortic Valve Implantation. An overview of required measurements and their use. Hellenic Journal οf Radiology 2022, Vol. 7(1), p. 38-49.

Shah H, Iqra M, Niamat U, Syed SUDS, Bakhtawar AK, Muhammad Z, Riaz U, Farhat AK, Mujeeb AS. Modern Diagnostic Imaging Technique Applications and Risk Factors in the Medical Field: A Review. BioMed Research International, vol. 2022, Article ID 5164970, 19 pages, 2022.

Hernigou J, Valcarenghi J, Safar A., et al. Post-COVID-19 return to elective orthopaedic surgery—is rescheduling just a reboot process? Which timing for tests? Is chest CT scan still useful? Safety of the first hundred elective cases? How to explain the “new normality health organization” to patients?. International Orthopaedics (SICOT) 44, 1905–1913 (2020)

Xiao K, Han Y, Xi X, Yan B, Bu H, and Li L. A Parameter Division Based Method for the Geometrical Calibration of X-Ray Industrial Cone-Beam CT. IEEE Access 2018, 6, 48970–48977.

Mulyadin, Dewang, S., Abdullah, B., & Tahir, D. (2018). Study of Image Quality From CT Scanner Multi-Detector by using Americans College of Radiology (ACR) Phantom. Journal of Physics: Conference Series, 979, 012080.

Almuslimiati., Milvita, Dian., Prasetio, H. (2019) ‘Analisis Nilai Noise dari Citra Pesawat CT-Scan pada Beberapa Rekonstruksi Kernel dengan Variasi Slice Thickness’, Jurnal Fisika Unand, 8(1), pp. 57–63.

Ayu, R. G. (2018) Analisis Noise Berdasarkan Slice Thickness Dengan Teknik Irisan Axial Pada Citra Computed Tomography Scan (CT-Scan).

Seeram, E. (2009) Computed Tomography: Physical Principles, Clinical Applications, and Quality Control. Third. Edited by L. Wilke,Jeanne., Held. America: Tannian, Patricia.

Wellenberg, RHH, Hakvoort, ET, Slump, C H, Boomsma, MF, Maas, M, and Streekstra, GJ. Metal artifact reduction techniques in musculoskeletal CT-imaging. European Journal of Radiology 2018, 107, 60–69.

Chen W, Ito S, Yusa N, dan Hashizume H. Investigation of the correlation between the electrical contact resistance and the contact area of mechanical lap joint fabricated with high-temperature superconducting tapes using X-ray microtomography. Fusion Engineering and Design 2019, 148, 111284.

Astuti, S.D., Kholimatussa’diah, S. (2018) Dasar Fisika Radiasi dan Dosimetri. Pertama. Edited by Tohir. Surabaya: Airlangga University Press.

Sholikah, S. Z. (2016) Optimalisasi Arus Tabung dan Ketebalan Irisan Untuk Mendapatkan Noise Minimum pada Hasil Citra CT-Scan.

Wicaksono, A. I. (2016) Analisa Pengaruh Filter Kernel Terhadap Reduksi Noise dan Detail Gambar pada Citra CT Scan Kepala Daerah Temporal pada CT Scan GE 64 Slice Lightspeed.

Rohmanika, W. (2017) Optimalisasi Citra CT-Scan Thorax dengan Variasi Slice Thickness dan Increment pada Kasus Tumor Paru. Universitas Airlangga.

Rahayu, I. D. (2019) Analisis Teknik T1 Spoiled Gradient Echo (T1 SPGR) MRI Brain pada Pasien Non Kooperatif. Universitas Airlangga.

Bushberg, J. T. et al. (2011) The Essential Physics of Medical Imaging , 3rd ed. 3rd editio, American Journal of Roentgenology. 3rd editio. Edited by C. W. Mitchell. China. doi: 10.2214/ajr.180.3.1800596.

Wibowo, A. S., Wibowo, G. M. and Prabowo, A. (2016) ‘Analisis Perubahan kV dan mAs Terhadap Kualitas Gambar dan Dosis Radiasi Pada Pemeriksaan Multislice Computed Tomography Abdomen Dalam Kasus Tumor Abdomen Di Instalasi Radiologi RSUD Dr . Saiful Anwar Malang’, Jurnal Imejing Diagnostik (JImeD), 2(1), pp. 129–133.

Fardela, R. and Kusminarto (2014) ‘Pengembangan Detektor Sinar-X Berbasis Fototransistor’, Pusat Sains dan Teknologi Akselerator, pp. 42–48. doi: 0216-3128.

Thayalan, K. (2014) The Physics of Radiology and Imaging. First Edit, Jaypee Brothers Medical Publisher. First Edit. New Delhi: Jaypee Brothers Medical. doi: 10.5005/jp/books/12361.

Hsieh, J. (2009) COMPUTED TOMOGRAPHY Principles, Design, Artifacts, and Recent Advances. Second Edi. United States of America: SPIE and John Wiley & Sons, Inc.

Gazali, W., Soeparno, H. and Ohliati, J. (2012) ‘Penerapan Metode Konvolusi Dalam Pengolahan Citra Digital’, Mat Stat, 12(02), pp. 103–113.

Indarsari, D. R., Ardiyanto, J. and Kurniawan, A. N. (2019) ‘Perbedaan Informasi Anatomi pada CT-Scan Abdomen Antara Penggunaan Protokol Sure Exposure dan Tanpa Sure Exposure’, Jurnal Imejing Diagnostik (JImeD), 5(2), pp. 82–88. doi: 10.31983/jimed.v5i2.4468.




DOI: http://dx.doi.org/10.36162/hjr.v7i4.512

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