Effect of low tube kV on radiation dose and image quality in retrospective ECG-gated coronary CT angiography

Abou-Issa, Ahmed H.; Elganayni, Fady; AL-Azzazy, Mohammed Zakaria

doi:10.1016/j.ejrnm.2011.10.001

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…Other methods of radiation exposure reduction take advantage of the increased processing power now possible with modern computers, such as electrocardiogram (ECG)-controlled tube current modulation (ECTCM), a technique that reduces radiation exposure during periods of the cardiac cycle when the resulting image would be unused [ 25 ]. More sophisticated algorithms prospectively identify appropriate times for radiation dose reduction during CCTAs, further reducing the radiation exposure [ 18 , 22 ].…”

Section: Resultsmentioning

confidence: 99%

Radiation Dose Reduction Opportunities in Vascular Imaging

et al. 2022

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Computed tomography angiography (CTA) has been the gold standard imaging modality for vascular imaging due to a variety of factors, including the widespread availability of computed tomography (CT) scanners, the ease and speed of image acquisition, and the high sensitivity of CTA for vascular pathology. However, the radiation dose experienced by the patient during imaging has long been a concern of this image acquisition method. Advancements in CT image acquisition techniques in combination with advancements in non-ionizing radiation imaging techniques including magnetic resonance angiography (MRA) and contrast-enhanced ultrasound (CEUS) present growing opportunities to reduce total radiation dose to patients. This review provides an overview of advancements in imaging technology and acquisition techniques that are helping to minimize radiation dose associated with vascular imaging.

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Section: Resultsmentioning

confidence: 99%

Radiation Dose Reduction Opportunities in Vascular Imaging

et al. 2022

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Prevalence of Protective Shielding Utilization for Radiation Dose Reduction in Adult Patients Undergoing Body Scanning Using Computed Tomography

Safiullah

Uribe

Spradling

et al. 2017

Journal of Endourology

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Purpose: Ionizing radiation is implicated in nearly 2% of malignancies in the United States; radiation shields prevent unnecessary radiation exposure during medical imaging. Contemporary radiation shield utilization for adult patients in the United States is poorly defined. Therefore, we evaluated the prevalence of protective shielding utilization in adult patients undergoing CT scans in United States' hospitals. Materials and Methods: An online survey was sent to established radiology departments randomly selected from the 2015 American Hospital Association Guide. Radiology departments conducting adult CT imaging were eligible; among 370 eligible departments, 215 departments accepted the study participation request. Questions focused on shielding practices during CT imaging of the eyes, thyroid, breasts, and gonads. Prevalence data were stratified per hospital location, size, and type. Main outcomes included overall protective shielding utilization, respondents' belief and knowledge regarding radiation safety, and organ-specific shielding prevalence. Results: Sixty-seven of 215 (31%) hospitals completed the survey; 66 (99%) reported familiarity with the ALARA (as low as reasonably achievable) principle and 56 (84%) affirmed their belief that shielding is beneficial. Only 60% of hospitals employed shielding during CT imaging; among these institutions, shielding varied based on CT study: abdominopelvic CT (13, 33%), head CT (33, 83%), or chest CT (30, 75%). Conclusions: Among surveyed hospitals, 40% do not utilize CT shielding despite the majority acknowledging the ALARA principle and agreeing that shielding is a beneficial practice. Failure to address the low prevalence of protective shielding may lead to poor community health due to increased risk of radiation-related cancers.

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Effect of low tube kV on radiation dose and image quality in retrospective ECG-gated coronary CT angiography

Cited by 2 publications

References 12 publications

Radiation Dose Reduction Opportunities in Vascular Imaging

Radiation Dose Reduction Opportunities in Vascular Imaging

Prevalence of Protective Shielding Utilization for Radiation Dose Reduction in Adult Patients Undergoing Body Scanning Using Computed Tomography

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