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All Journal WAPFI (Wahana Pendidikan Fisika) Jurnal Pembelajaran Fisika Jurnal Ilmiah Giga JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) INDONESIAN JOURNAL OF APPLIED PHYSICS Spektra: Jurnal Fisika dan Aplikasinya Formatif: Jurnal Ilmiah Pendidikan MIPA JPF : JURNAL PENDIDIKAN FISIKA Sarwahita : Jurnal Pengabdian Kepada Masyarakat Informatika Jurnal Teknodik Parameter PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Mitra Pilar: Jurnal Pendidikan, Inovasi, dan Terapan Teknologi Mitra Teras: Jurnal Terapan Pengabdian Masyarakat Current STEAM and Education Research
Dewi Muliyati
Department Of Physics Education, Universitas Negeri Jakarta
Aerospace Engineering Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : INDONESIAN JOURNAL OF APPLIED PHYSICS

 1 
The Effects Of High Dose and Low Dose Protocols In Thorax’s CT Scan Image Quality Ni Larasati Kartika Sari; Deni Tiko Bahagia; Puji Hartoyo; Dewi Muliyati
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 11, No 2 (2021): IJAP Volume 11 ISSUE 02 YEAR 2021
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v11i2.48365

Abstract

ABSTRACTThe aim of this research was to evaluate the effects of two different dose protocols’ usage on image quality. This research was performed on three different CT Scanners using high dose and low dose protocols of thorax scan. Different exposure parameters were used, depending on each scanner’s setting. GE QA CT Scan phantom was used for image quality assessment.  Image quality measured were CT number accuracy, uniformity and linearity, noise uniformity, spatial resolution and Contrast To Noise Ratio (CNR). CT Scan’s dose index, CTDIvol (Volumetric Computed Tomography Dose Index), was also measured to evaluate how these two protocols work in reducing radiation dose. The result showed that the usage of low dose protocols reduce the CTDIvol value at 85-91% compared to the high dose protocols, meanwhile most of the image quality parameters obtained from both protocols were still considered good. The CT number accuracy, uniformity, linearity and noise uniformity for all CT Scans were all still inside BAPETEN’s (Indonesia National Regulator Agency) threshold. There were 20-23% difference on the spatial resolution value measured from both protocols. The most significant difference came from CNR. The CNR obtained from high dose protocols were 65-93% higher than the one from low dose protocols.   Keywords: contrast to noise ratio, CTDIvol, CT number, spatial resolutionABSTRAKPenelitian ini mengevaluasi pengaruh penggunanaan protokol dosis tinggi dan protokol dosis rendah terhadap kualitias citra dan dosis khususnya pada pemeriksaan CT Scan thorax. Penelitian ini dilakukan pada 3 sampel CT Scan yang berbeda. Faktor eksposi yang digunakan berbeda untuk tiap scanner, bergantung pada setting yang terdapat pada scanner. Fantom yagdigunakan untuk menilai kualitas citra adalah fantom GE QA CT Scan. Adapun kualitas citra yang diukur adalah keseragaman, akurasi, dan linearitas CT number, keseragaman noise, resolusi spasial, serta Contrast to Noise Ratio (CNR). Sementara dosis radiasi yang diamati adalah CTDIvol (Volumetrik Computed Tomography Dose Index) yang tampil pada konsol. Hasil penelitian ini menunjukkan bahwa penggunaan protokol dosis rendah mampu mengurangi nilai CTDIvol sebesar 85-91% dibanding dengan protokol dosis tinggi, sementara sebagian besar parameter kualitas citra yang diukur masih dinilai baik. Nilai akurasi, keseragaman, dan linearitas CT number  serta keseragaman noise pada protokol dosis tinggi dan dosis rendah, keseluruhannya masih dalam batas ambang BAPETEN. Terdapat perbedaan sebesar 20-23% pada nilai resolusi spasial yang terukur dari  kedua protokol. Nilai CNR pada protokol dosis tinggi lebih baik dari pada protokol dosis rendah, dengan perbedaan yang cukup signifikan, yaitu 65-93%.Kata kunci: contrast to noise ratio, CTDIvol, CT number, resolusi spasial
Co-Authors A. Handjoko Permana Agus Setyo Budi Agustiani Putri Agustiani Putri Aisah Amada, Early Anita Rahayu Ariyanti, Shallu Fidhah Bahagia, Marthin Virgo Betty Zelda Siahaan Budi Santoso Cahyani, Vina Dwi Citra Media Pertiwi Dadan Sumardani Dadan Sumardani Dadan Sumardani Dadan Sumardani Dadan Sumardani Deni Tiko Bahagia Denny, Dwinanda Permata Sari Dewanti, Kunti Diah Ambarwulan Diah Ambarwulan Diah Ambarwulan Diah Ambarwulan Diah Ambarwulan, Diah Dwi Handarini Dwi Handarini, Dwi Dwi Susanti Dwi Susanti Elisa Elisa Erfan Handoko Faiza Febrina Farah Fajriani Farah Savila Fauzi Bakri Febria Anita, Febria Firdaus, Bagaskara Fitranto, Yusuf Niko Gustama Wibawa R Hadi Nasbey Halim, Joel Ongko Hartoyo, Puji Herga Marizka Heri Firmansyah Herliana, Fitria Hersaputra, Nugraha I Made Astra I Made Astra Idris Kusuma Imtihani, Hajar Inas Nurazizah Indah Hanifa Salsabila Indri Sari Utami Inti Ermina Br Barus Iwan Purnaman Kamila Aulia Rahma Kartika Sari, Ni Larasati Khan, Shak Rhuk Lestari, Intan Rachmawati Lila Zalika M, M. Rizki Diva M. Rizki Diva M Mahendra, M. Rizki Diva Mahmudah, Muhammad Suryauno Mahzum, Elmi Mardila, Rini Marlinda Siahaan Mellyana Mega Hartina Milenia, Rizka Morales, Marie Paz E. Muhammad Suryauno Mahmudah Musyafa, Farhan Aqil Mutiah Mutiah Mutoharoh Mutoharoh Mutoharoh Mutoharoh, M Mutoharoh, Mutoharoh Muzilman Muslim, Muzilman Neli Fori Karliana Ni Larasati Kartika Sari Ni Larasati Kartika Sari Ni Larasati Kartika Sari Nisrina Tsabitah Zain Nurahmih, Silva Nurhayati Nurhayati Nurul Fitri, An Nisa Nuvus, Afiva Riyatun Oktaviani Marsal Po-Sheng Chiu Prihartini Khoirun Nissa Primasari, Nandia Puji Hartoyo Purwahida, Rahmah Purwantiningsih Purwantiningsih Putri Marsha Sabrina R, Gustama Wibawa Rachman, Gustama Wibawa Raffa Fitra Ramadannisa Rahma Rosaliana Saraswati Rahmah Purwahida Rahmah, Annisa Ramdhan, Muhammad Rofiid Repi, Viktor Vekky Ronald Riser Fahdiran Rizky Desiana S Siswoyo Sabaryati, Johri Sabila, Dila Sabrina, Putri Marsha Saldy Saputra, Achmad Fadhlih Sari, Ni Larasati Kartika Sarinah Sarinah Sekartaji, Ananda Ayu Dewi Shekti, Shitoch Armandho Bimo Sholina, Wini Silva Nurahmih Simanjuntak, Bintang Ronauli Siti Rachmawati SITI RACHMAWATI Siti Rohanah Sparisoma Viridi SUBEKTI, FAJAR Sumardani, Dadan Sunaryo Sunaryo Sunaryo Sunaryo Sunaryo Sunaryo Supriyadi, Rizky Supriyani, Yuyun Supriyati, Yetty Suzana, Merry Syafrima Wahyu Velinda Finka Irawan Vina Dwi Cahyani Vina Serevina Wahyuni, Agus Wahyuni, Iip Widyaningrum Indrasari Wini Sholina Wonga, Hiasintus Wulandari Fitriani Yasti, Arfa Hanania Yus Rama Denny Zain, Nisrina Tsabitah Zainuddin, Zainuddin Zilan Zalila Rendy Zulmi, Febrian Zulri Ramadhan