In keeping with the increasing utilization of CT examinations, the greater concern about
radiation hazards from examinations has been addressed. In this regard, CT radiation dose …

OBJECTIVE. The purpose of this article is to use clinical scenarios to explore aspects of
ionizing radiation imparted to patients undergoing CT examinations. Examination …

Purpose To compare the dose and image quality of three methods for reducing the radiation
dose to the eye at head computed tomography (CT): bismuth shielding, organ-based tube …

In the past 3 decades, the total number of CT scans performed has grown exponentially. In
2007,> 70 million CT scans were performed in the United States. CT scan studies of the …

OBJECTIVE. The purpose of this study was to study different optimization methods for
reducing eye lens dose in head CT. MATERIALS AND METHODS. Two anthropomorphic …

Computed tomography currently accounts for the majority of radiation exposure related to
medical imaging. Although technological improvement of CT scanners has reduced the …

Purpose: The purpose of this work was to evaluate dose performance and image quality in
thoracic CT using three techniques to reduce dose to the breast: bismuth shielding, organ …

OBJECTIVE. This article reviews dose reduction techniques in pulmonary CT angiography
(CTA) for imaging pulmonary embolism (PE). Dose reduction technologies covered include …

In oncology practice, the CT component of PET/CT may be used for attenuation correction,
lesion localization, and CT diagnosis, and significantly enhances the clinical benefit of PET …

Purpose Modern CT scanners use automatic exposure control (AEC) techniques, such as
tube current modulation (TCM), to reduce dose delivered to patients while maintaining …