ISSN 1004-4140
CN 11-3017/P
Volume 31 Issue 5
Sep.  2022
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WANG Y S, ZHANG P Y, LI F Z, et al. Study on the influence of head and neck CTA image quality under different tube voltages[J]. CT Theory and Applications, 2022, 31(5): 631-638. DOI: 10.15953/j.ctta.2022.026. (in Chinese).
Citation: WANG Y S, ZHANG P Y, LI F Z, et al. Study on the influence of head and neck CTA image quality under different tube voltages[J]. CT Theory and Applications, 2022, 31(5): 631-638. DOI: 10.15953/j.ctta.2022.026. (in Chinese).
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Study on the Influence of Head and Neck CTA Image Quality under Different Tube Voltages

  • Department of Radiology, Tinglin Hospital, Jinshan District, Shanghai 201505, China

Funds: Medical Imaging and Image Processing
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  • Received Date: February 21, 2022
  • Revised Date: April 09, 2022
  • Accepted Date: May 16, 2022
  • Available Online: June 26, 2022
  • Published Date: September 30, 2022
    Graphical Abstract
    • Abstract
  • Objective: To explore the influence on the image quality of head and neck CTA under different tube voltages. Materials and methods: A total of 67 patients with clinically suspected head and neck vascular diseases in Tinglin hospital from September 2021 to January 2022 were collected as the research objects, including 37 males and 30 females, with an average age of 68.94. According to the applied tube voltage, the patients were randomly assigned into groups A, B and C. There were 23 cases of 120 kV in group A, 24 cases of 100 kV in group B and 20 cases of 80 kV in group C. Single factor ANOVA test was used to compare the CT value, SD value, SNR, CNR of aortic arch, internal carotid artery, M1 segment of middle cerebral artery and sternocleidomastoid muscle among the three groups, and furthermore the subjective score of image quality, TDLP and ED. Kappa test was used to evaluate the consistency of subjective scores of the two physicians. Results: There were statistical differences in CT and SD values of aortic arch, internal carotid artery and M1 segment of middle cerebral artery among the three groups; The CT and SD values of aortic arch, internal carotid artery and M1 segment of middle cerebral artery increased with the decrease of tube voltage, with an increase range of 15%～55%. There was no statistical difference in SNR and CNR among the three groups; There was statistical difference in subjective score of image quality among the three groups; Group B > group A > group C, and group B showed the highest score; the kappa value of the subjective score of the two phsicianss=0. 80, which was highly consistent; There were statistical differences in TDLP and ED among the three groups, TDLP and ED decreased with the decrease of tube voltage, with the decrease ranges of 25% and 39%. Conclusion: According to the requirements of CT radiation dose diagnosis reference level, 100 kV is the best tube voltage condition for head and neck CTA.
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    • References (19)
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