Evaluation of patients’ radiation doses and establishment of institutional diagnostic reference levels in nuclear medicine in Oman-Reference-Cited by-同舟云学术

Evaluation of patients’ radiation doses and establishment of institutional diagnostic reference levels in nuclear medicine in Oman

Published:2024-08-01 Issue:14 Volume:200 Page:1339-1351
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Ebrahim Fadheela¹²,Aljabri Aziza³,Alhaji Amal³,Aldebasi Bader⁴,Gismelseed Abbasher¹²,Bouchareb Yassine⁵^ORCID

Affiliation:

1. Department of Physics , College of Science, , PO. Box 36, Al Khoud, 123 Muscat, Oman

2. Sultan Qaboos University , College of Science, , PO. Box 36, Al Khoud, 123 Muscat, Oman

3. Department of Radiology and Molecular Imaging, Sultan Qaboos University Hospital , PO. Box 38, Al Khoud, 123 Muscat, Oman

4. King Abdullah International Research Centre, College of Applied Sciences at King Saud bin Abdulaziz University for Health Science, National Guard , PO. Box 3660, Riyadh, Saudi Arabia

5. Department of Radiology and Molecular Imaging, Sultan Qaboos University , PO. Box 35, Al Khoud, 123 Muscat, Oman

Abstract

Abstract This study aimed to develop diagnostic reference levels (DRLs) in Single Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) and Positron Emission Tomography/Computed Tomography (PET/CT) imaging for the most frequent SPECT/CT and PET/CT examinations performed at our institution. A total of 1134 adult patients, who have undergone SPECT/CT and PET/CT scanning over a period of 4 years (2018–2021), were included. The scans consisted of 401 PET/CT and 733 SPECT/CT scans. The CT dosimetry data [CT-dose-index (CTDIvol), dose-length-product (DLP)] and administered activities were collected. The DRLs were calculated for CTDIvol, DLP and administrated activity. The estimated DRLs are given as [median CTDIvol (mGy):median DLP (mGy.cm):median administrated activity (MBq)]: whole body PET/CT: 1.88:175:259; brain PET/CT: 12.9:300:239; cardiac PET/CT: 1.34:32:368; bone SPECT/CT: 2.68:116:763; MPI SPECT/CT (stress-rest): 1.49:52:751-721; parathyroid SPECT/CT: 3.1:126:779; thyroid uptake SPECT: 3.52:147:195; thyroid post-ablation SPECT/CT: 3.85:160:NA. The derived DRLs have allowed careful monitoring of doses delivered to patients and could act as a trigger to investigate doses that systematically exceeds the derived DRLs.

Publisher

Oxford University Press (OUP)

Link

https://academic.oup.com/rpd/article-pdf/200/14/1339/59070244/ncae170.pdf

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