Establishing national paediatric computed tomography diagnostic reference levels in Ghana

期刊论文
发表日期：

2024年9月2日

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Issahaku Shirazu,
Theophilus A. Sackey,
Raymond Edziah,
Yaw Mensah Boateng,
Cyril. Schandorf

摘要

Purpose

The aim of the study was to establish and propose the utilisation of paediatric National Diagnostic Reference Levels (DRLs) for dose length product (DLP) and volume computed tomography dose index (CTDI_vol) for most commonly routine computed tomography (CT) for paediatric examinations.

Method

These were based on the most commonly used routine brain protocol, the chest protocol and the abdominal-Pelvis protocol for head, chest and abdominal scans respectively. 200 images which met the selection criterion were used for the analysis.

Results

The measured median and 75th percentile CTDI_VOL of head were 14.9 and 15.5 mGy, chest was 1.4 and 1.7 mGy, abdomen-pelvis were 5.1 and 15.3 mGy respectively. While DLP for head were 457 and 498 mGy-cm, chest was 13 and 14 mGy-cm, abdomen-pelvis were 26 and 29 mGy-cm. Similar trends were observed in aged 6.-10y and 11-16y.

Conclusion

The study recommends the use of the established CTDI_VOL and DLP as reference values for clinical application in Ghana.