TY - GEN
T1 - Optimizing CT Scan Image Quality with Variation of Tube Flow and Scan Method
AU - Halim, Rifqi Aditya Gangsari
AU - Kharimah, Irma Nur
AU - Hariyani, Dita Aprilia
AU - Muzamil, Akhmad
AU - Rulaningtyas, Riries
AU - Astuti, Suryani Dyah
N1 - Publisher Copyright:
© 2022 American Institute of Physics Inc.. All rights reserved.
PY - 2022/1/25
Y1 - 2022/1/25
N2 - Optimizing the quality of the CT scan image with variations in tube current and scan method has been carried out. Using variations of tube currents of 140 mA, 200 mA, 260 mA, and 280 mA, for axial and helical methods with a scan time of 1 second and a voltage of 120 kV. Image quality in terms of the value of the Signal To Noise Ratio (SNR) and the uniformity of the CT number. SNR value analysis is done by comparing the object's mean value (N) with the standard deviation of noise on the background, while the CT number uniformity analysis can be done by finding the difference between the CT number or the center mean with the edges of a homogeneous image. The results showed that increasing tube current increased the SNR value and a decrease in the uniformity of the CT number. The SNR value and the uniformity of the CT number in the helical method are greater than in the axial method. Optimal image quality is determined by the highest SNR value and the image uniformity value that is closest to zero. In this study, the SNR value and CT number uniformity in the two optimal methods at 280 mA tube currents are the SNR value and CT number uniformity of 48.183 ± 1.731 and 0.481 ±0.111 in the axial method and 68.964 ± 3.790 and 0.814 ± 0.179 in the helical method.
AB - Optimizing the quality of the CT scan image with variations in tube current and scan method has been carried out. Using variations of tube currents of 140 mA, 200 mA, 260 mA, and 280 mA, for axial and helical methods with a scan time of 1 second and a voltage of 120 kV. Image quality in terms of the value of the Signal To Noise Ratio (SNR) and the uniformity of the CT number. SNR value analysis is done by comparing the object's mean value (N) with the standard deviation of noise on the background, while the CT number uniformity analysis can be done by finding the difference between the CT number or the center mean with the edges of a homogeneous image. The results showed that increasing tube current increased the SNR value and a decrease in the uniformity of the CT number. The SNR value and the uniformity of the CT number in the helical method are greater than in the axial method. Optimal image quality is determined by the highest SNR value and the image uniformity value that is closest to zero. In this study, the SNR value and CT number uniformity in the two optimal methods at 280 mA tube currents are the SNR value and CT number uniformity of 48.183 ± 1.731 and 0.481 ±0.111 in the axial method and 68.964 ± 3.790 and 0.814 ± 0.179 in the helical method.
UR - http://www.scopus.com/inward/record.url?scp=85147261396&partnerID=8YFLogxK
U2 - 10.1063/5.0104142
DO - 10.1063/5.0104142
M3 - Conference contribution
AN - SCOPUS:85147261396
T3 - AIP Conference Proceedings
BT - 8th International Conference and Workshop on Basic and Applied Science, ICOWOBAS 2021
A2 - Wibowo, Anjar Tri
A2 - Mardianto, M. Fariz Fadillah
A2 - Rulaningtyas, Riries
A2 - Sakti, Satya Candra Wibawa
A2 - Imron, Muhammad Fauzul
A2 - Ramadhan, Rico
PB - American Institute of Physics Inc.
T2 - 8th International Conference and Workshop on Basic and Applied Science, ICOWOBAS 2021
Y2 - 25 August 2021 through 26 August 2021
ER -