Evaluation of Radiation Exposure From Computed Tomography of the Head

Vega-Woo, Nelly

doi:10.1016/j.jradnu.2018.08.003

Cited by 2 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Studies have reported about 1.5 -2% of cancer cases may be caused by higher doses of radiation currently used in CT (Abdulqadir et al, 2016). The Radiological Society of North America (RSNA) in 2012 stated that average radiation dose from abdominal CT examinations is about 10mSv while that for brain is just about 2mSv (Vega, 2014). Radiation dose of 10mSv and above carry higher risks of radiation induced injuries.…”

Section: Assessment Of Average Radiation Dose For Abdominal Computed mentioning

confidence: 99%

Assessment of average radiation dose for abdominal computed tomography examinations in Aminu Kano Teaching Hospital, Kano

Abba¹,

Ibrahim²

2019

Bayero J. Pure App. Sci.

View full text Add to dashboard Cite

The demand for abdominal Computed Tomography (CT) scans has dramatically increased over the years due to its higher sensitivity in ruling out a wide range medical conditions as compared to other imaging modalities. However, this patronage is associated wit high effective dose and hence attributable to the risk of radiation Establishing an acceptable radiation dose level and designing a protocol of maintaining dose level within that range is a sure optimization practice that is recommended national and international radiation monitoring bodies. The study aims to assess the average radiation dose received by patients undergoing abdominal CT examinations in Radiology unit of AKTH Kano, Nigeria. Dose survey of 100 adult abdominal CT sc Radiology department of AKTH from June obtained from the CT machine as displayed on the console and recorded into an adapted IAEA survey form. Effective dose was estimated by multiplying DLP by the conversio factor, k-value for abdomen (0.015mSv/mGy.cm). A total of 100 patient's radiation dose summary comprising 57 (57%) of females and 43 (43%) males with a mean age of 46 years. Determined 75th percentile CTDIvol, DLP and effective doses for abdominal CT were found to be 12 mGy, 2225.25 mGy.cm and 33.38 mSv respectively. The CTDIvol value was lower than most local and international established studies. The DLP and effective doses of the present study were significantly higher than other studies and calls for review of existing protocol to optimize practice.

show abstract

Section: Assessment Of Average Radiation Dose For Abdominal Computed mentioning

confidence: 99%

Assessment of average radiation dose for abdominal computed tomography examinations in Aminu Kano Teaching Hospital, Kano

Abba¹,

Ibrahim²

2019

Bayero J. Pure App. Sci.

View full text Add to dashboard Cite

show abstract

Comparison of Several Methods for Automated Noise Measurements in Computed Tomography

Octaviany

Anam

Sutanto

et al. 2022

IJSRST

View full text Add to dashboard Cite

Purpose: To compare the methods of automated noise measurement at the polyester resin (PESR) phantom images and clinical abdominal images. Method: The PESR phantom was scanned with a Siemens SOMATOM Emotion 6 CT scanner for various tube voltages, i.e., 80, 110, and 130 kV. Noises from images of the PESR phantom and 27 clinical abdominal scans were automatically measured. The methods used for automatic measurements were methods proposed by Christianson et al (2015), Malkus et al (2017), and Anam et al (2019), respectively. Results: Three methods of automatic noise measurements can distinguish the noise of the three tube voltages. The measured noises from three methods decrease with increasing tube voltage. It can also be seen that the highest noise in PESR phantom images is Christianson et al (2015) method, and the smallest noise is Malkus et al (2017) method. The highest noise in clinical abdominal images is Malkus et al (2017) method, and the smallest noise is Anam et al (2019) method. Conclusion: The algorithms to automatically measure noises proposed by Christianson et al (2015), Malkus et al (2017), and Anam et al (2019) have been compared. Although the three methods can distinguish noise for different exposure factors, the magnitude of the noise from the three methods can vary. Until now there is no standard for automatic noise determination.

show abstract

Evaluation of Radiation Exposure From Computed Tomography of the Head

Cited by 2 publications

References 12 publications

Assessment of average radiation dose for abdominal computed tomography examinations in Aminu Kano Teaching Hospital, Kano

Assessment of average radiation dose for abdominal computed tomography examinations in Aminu Kano Teaching Hospital, Kano

Comparison of Several Methods for Automated Noise Measurements in Computed Tomography

Contact Info

Product

Resources

About