ESTABLISHMENT OF LOCAL DIAGNOSTIC REFERENCE LEVELS FOR COMMON PROCEDURES OF COMPUTED TOMOGRAPHY IN YAZD PROVINCE.

Abstract:

OBJECTIVE:The aim of this study was to propose first established diagnostic reference levels (DRLs) in computed tomography (CT) for adults, based on volume-averaged CTDI and dose length product (DLP) metrics in Yazd Province. MATERIALS AND METHODS:Six multislice CT scanners located at diverse areas of Yazd Province and seven common procedures were selected for the present study. For each procedure, at least twenty patients 18 years and older were sampled at each institution. For each patient, dose report data and scan parameters as well as patient's information were abstracted from picture archiving and communication system. RESULTS:Proposed DRLs in terms of computed tomography dose index (mGy) and DLP (mGy.cm) were as follows: brain (42, 527), sinus (25, 220), neck (14, 264), abdomen-pelvis (11, 295), routine chest (8, 247), CT pulmonary angiogram (32, 261) and chest HRCT (11, 455), respectively, slightly lower compared to other investigations. CONCLUSION:The proposed DRLs in this study should be considered as the local DRLs for the seven most common adult CT examinations in Yazd province so as to optimize the patient dose while maintaining acceptable image quality for the clinical task.

journal_name

Radiat Prot Dosimetry

authors

Zamani H,Masjedi H,Omidi R,Hosein Zare M

doi

10.1093/rpd/ncz279

subject

Has Abstract

pub_date

2020-06-13 00:00:00

pages

222-231

issue

2

eissn

0144-8420

issn

1742-3406

pii

5673130

journal_volume

188

pub_type

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