Proposing Multiregional Diagnostic Reference Levels for Common CT Angiography Examinations in Saudi Arabia

Diagnostic reference levels (DRLs) are crucial tools for optimizing radiation exposure during different radiological examinations. This study aimed to establish preliminary DRLs for commonly performed computed tomographic angiography (CTA) examinations in Saudi Arabia. Data for three types of CTA ex...

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Bibliographic Details
Published in:	Diagnostics (Basel) Vol. 14; no. 14; p. 1523
Main Authors:	Alhailiy, Ali, Alkhybari, Essam, Alshuhri, Mohammed, Al-Othman, Abdullah, Hegazi, Tarek, Alsuhaimi, Mohammed, Alghamdi, Sultan, Alenazi, Khaled, Alashban, Yazeed, Alghamdi, Sami, Quzi, Omar, Jaafari, Osama, Alajlani, Saleh, Masmali, Abdulrahman, Hadi, Yasser, Manssor, Elbagir, Mahmoud, Mustafa
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI AG 01-07-2024
Subjects:	Angiography computed tomographic angiography CT dose index volume CT imaging Data collection diagnostic reference levels dose length product Hospitals Males Medical imaging Medical imaging equipment multi-detector CT Optimization Patients Population Radiation Scanners Sensors Saudi Arabia United States > US CT dose index volume diagnostic reference levels dose length product computed tomographic angiography multi-detector CT
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Summary:	Diagnostic reference levels (DRLs) are crucial tools for optimizing radiation exposure during different radiological examinations. This study aimed to establish preliminary DRLs for commonly performed computed tomographic angiography (CTA) examinations in Saudi Arabia. Data for three types of CTA examinations (cerebral, pulmonary, and lower-extremity) were collected from six medical cities across Saudi Arabia. Data sets related to 723 CTAs with a mean patient weight of 75 kg were analysed in detail. The DRL values were determined based on the 75th, median, and 25th CT dose index volume (CTDI ) and dose length product (DLP) values. The established DRLs were 1221 mGy cm for cerebral CTAs, 475 mGy cm for pulmonary CTAs, and 1040 mGy cm for lower-extremity CTAs. These values were comparable to those reported in other studies. This study provides preliminary DRLs for three common CTA procedures in Saudi Arabia. The widespread implementation of a low kVp and a high level of image reconstruction (IR) presents an opportunity for further dose reduction. These findings can serve as a foundation for future nationwide DRL surveys and the optimization of CTA imaging protocols in Saudi Arabia.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2075-4418 2075-4418
DOI:	10.3390/diagnostics14141523