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The Benefits of Dose Reduction and Monitoring Techniques for Computed Tomography

George Tsoukatos, BPS, RT (R)

*Digital Radiography Product Specialist, Radiology Support Services, Germantown, New York.

Address correspondence to: George Tsoukatos, BPS, RT(R), Radiology Support Services, PO Box 215, Germantown, NY 12526. E-mail: radiologytechnique@gmail.com.

Disclosures: Mr Tsoukatos reports having no significant financial or advisory relationships with corporate organizations related to this activity.

ABSTRACT

Computed tomography (CT) is a remarkable diagnostic tool for performing imaging studies across all age groups and anatomic regions of the body. It has dramatically changed how clinical diagnosis is correlated or ruled out. Although there are many benefits of using CT as a diagnostic, interventional, or therapeutic tool, concerns regarding the risks and potential long-term effects associated with increased patient radiation dose continue to emerge. Today, one of the highest priorities on many hospital agendas is to achieve improved control of patient radiation exposure in CT and other diagnostic imaging modalities. This article describes current concerns related to CT radiation dose exposure, how CT dose metrics and parameters affect radiation output, and recommended radiation dose thresholds. Dose reduction and monitoring software for CT will also be discussed, as well as an overview of the regulatory, accreditation, and advisory groups that govern CT radiation dose.

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