Effective Dose in Brain Computed Tomography at Phraphutthabat Hospital Saraburi Provinc

Authors

  • Sittichart Boonyiam Phraphutthabat Hospital, Saraburi

Keywords:

Computed Tomography, CTDI, DLP, Effective Dose

Abstract

Purposes : To study was to assess the radiation dose received by patients from computed tomography of the brain and to compare the radiation dose received by patients with the radiation level recommended by international agencies.

Study design : Descriptive Study

Materials and Methods : In this study, the parameters used for scanning distance and CTDIvol dose values ​​were collected. and DLP values ​​from 260 brain CT patients.

Main findings : The mean CTDIvol value at the first session was 90.53 mGy, and at the second session, it was 46.79 mGy. The mean DLP value at the first session was 976.26. mGy.cm at the second time it was reduced to 715.56 mGy.cm and the mean effective dose at the 1st time was 2.95 mSv and at the second time it was reduced to 1.94 mSv, which is the mean CTDIvol, mean DLP, and effective dose. The first pre-study mean was higher than the baseline and mean CTDIvol, mean DLP and second-mean effective dose were lower than the norm and did not differ from the results of studies from other countries. Computer tomography of the brain with high values ​​in some cases Due to the low pitch setting and long scanning distance.

Conclusion and recommendations  : Pre-study Mean CTDIvol, Mean DLP, and Mean Effective dose 1st Pre-study were higher than the baseline and CTDIvolMean 2nd Mean DLP and Mean Effective dose were lower than the EUR 16262 standard. Radiologic Technologist working in a computer X-ray room. Appropriate technical values ​​for patient examination should be determined from the start of Scout imaging by selecting the setting for examination that obtains quality radiographs and uses the least amount of radiation that a computed tomography machine can estimate. The amount of radiation should be informed on the display screen, as well as to determine the appropriate scanning distance. not too wide and should avoid unnecessary re-scanning Therefore, before doing Scan, it is necessary to plan the examination together with the radiologist before every time. And there should be a reference value of Thailand. so that the hospital can use this reference value to compare

References

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วัฒนา วงษ์ศานนท์, จิรันธนิน เภารอด, เพชรากร หาญพานิชย์ , ปนัสดา อวิคุณประเสริฐ. การศึกษาค่าผลคูณ ปริมาณรังสีตลอดความยาวของการสแกนจากการตรวจเอกซเรย์คอมพิวเตอร์ ในโรงพยาบาล ศรีนครินทร์มหาวิทยาลัยขอนแก่น. ศรีนครินทร์เวชสาร 2563; 35(4): 433-37.

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Published

2021-12-30

How to Cite

1.
Boonyiam S. Effective Dose in Brain Computed Tomography at Phraphutthabat Hospital Saraburi Provinc. J Res Health Inno Dev [internet]. 2021 Dec. 30 [cited 2025 Dec. 7];3(1):71-84. available from: https://he01.tci-thaijo.org/index.php/jrhi/article/view/253888

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Original Articles