Abstract
This study aimed to estimate renal effective dose during abdominal CT scans in order to assess the renal risks of cancer and heredity per procedure in Moroccan hospitals. It’s consisted of examining a total of 120 patients referred to three radiology departments for an abdominal CT scan at the rate of 40 per hospital. The data that collected for this diagnostic exam included scanner acquisition parameters, number of series, use of the contrast medium, and rotation time as well as slice thickness, the displayed CT dose index (CTDIvol) and the Dose Length Product (DLP). Renal dose, effective dose and biological risks were estimated using the International Commission on Radiological Protection (ICRP) conversion factor. The patients included in this study were an average age of the (46.49 ± 14.16) years and an average weight of (73.34 ± 7.58) kg. For the mean effective dose (E) and average kidney dose (DK) received per patient during an abdominal CT scan, it were respectively of (6.67 ± 2.73) and (18.26 ± 7.74) mSv. The distribution of these values according to the hospital variable shows a difference in mean effective dose of the order of 0.26, 0.38 and 1.45 mSv and a difference in the mean renal dose of the order of 8.76, 4.94 and 0.48 mSv respectively for H1, H2 and H3. The induction cancer risk of abdominal and kidney per 105 procedures was respectively of 3 and 10. The kidney cancer risk by procedure is two to three times more likely than abdominal. For hereditary risk of abdominal and renal exposure per 106 procedures, it is 14 and 21 respectively. The renal stochastic effect by procedure is also two to three times more likely than that of the abdomen. Our values are relatively higher than those of published in some previous studies. Cancer risk and heredity estimation highlights the need to limit radiation dose. This first ever survey confirmed the need to improved training of health professionals involved in computed tomography on factors affecting image quality, doses and protocols optimization.
Highlights
Medical imaging is a valuable and indispensable tool for the detection, diagnosis and efficient control of many diseases
The effective dose and renal dose were estimated according to the recommendations of the International Commission on Radiological Protection [3]
Data from 120 patients referred for a CT scan of the abdomen were collected from 40 patients per radiology department in the three hospitals involved in the study
Summary
Medical imaging is a valuable and indispensable tool for the detection, diagnosis and efficient control of many diseases. Ionizing radiation can cause cell death by apoptosis or failure of induced reproduction, which can lead to changes in genes involved in the regulation of cell growth, loss of normal nuclear structure, DNA degradation and tumorigenesis [2] These effects include cancer and hereditary effects, which increase an individual’s lifetime risk of developing cancer or hereditary effects in future generations. The International Commission on Radiological Protection (ICRP) has adjusted the nominal radiological detriment coefficients for cancer and hereditary effects as follows: 5.5 × 10−2 and 0.2 × 10−2 Sv−1 for the whole population [3] In addition to these effects, radiation exposure is associated with certain diseases (non-cancer effects), such as respiratory diseases, stroke, heart disease and digestive disorders [3] [4]. The radiological risks of non-cancerous diseases at low doses remain uncertain, doses delivered should be kept at minimum values to ensure patient protection [2] [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
