Comparison of Image Quality and Radiation Dose between Fixed Tube Current and Combined Automatic Tube Current Modulation in Craniocervical CT Angiography

Lee, E. J.; Lee, Seon Kyu; Agid, Ronit; Howard, Peter; Bae, Jong Myon; TerBrugge, K G

doi:10.3174/ajnr.a1675

Cited by 39 publications

(23 citation statements)

References 30 publications

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“…Lee et al reported similar results (18% reduction) comparing ATCM with FTC technique in different patients for each technique. They did not correlate the image quality and radiation exposure with patient weight or cross-sectional dimensions (14).…”

Section: Discussionmentioning

confidence: 99%

Comparison of image quality and radiation dose between combined automatic tube current modulation and fixed tube current technique in CT of abdomen and pelvis

et al. 2011

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Section: Discussionmentioning

confidence: 99%

Comparison of image quality and radiation dose between combined automatic tube current modulation and fixed tube current technique in CT of abdomen and pelvis

et al. 2011

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“…Although there are no definite data on the radiation exposure of the whole aortogram by CT angiography, the dose seems to have little effect on the human body as long as examinations are not repeatedly performed. 10) In addition, it is still unclear whether intravenous contrast administration is safe enough to warrant widespread use, especially in the effect on renal function. Previous studies focusing on imaging with contrast medium demonstrated much lower incidence of renal failure due to contrast medium-induced nephropathy.…”

Section: Discussionmentioning

confidence: 99%

Usefulness of Computed Tomography Angiography for the Detection of High-Risk Aortas for Carotid Artery Stenting

Yamamoto

Kuwayama

Hayashi

et al. 2011

Neurol. Med. Chir.(Tokyo)

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This study evaluated the usefulness of computed tomography (CT) angiography for the detection of high-risk aortas for carotid artery stenting (CAS). We investigated changes in the treatment method and modifications of endovascular techniques according to the information from CT angiography. CT angiography using three-dimensional and multi-planar reconstruction was performed in 43 consecutive patients with carotid artery stenoses intended to undergo CAS. Two neurosurgeons evaluated the images and estimated the risk and difficulties of CAS. CT angiography clearly depicted the entire aorta, the supra-aortic vessels, and the ilio-femoral arteries in all patients. Abnormal vascular findings were found in 17 patients. High-risk aortic lesions for CAS were detected in 5 patients, including thick aortic plaques with thrombi in 2. We changed the treatment strategy from CAS to carotid endarterectomy (CEA) in these 2 patients. CT angiograms proved very useful in evaluating the approach routes of CAS in 12 patients. One patient had dissecting aneurysm of the thoracic aorta and another had aberrant right vertebral artery. In these two, the treatment strategy was changed from CAS to CEA. The treatment method was changed in 4 patients in total. CT angiography is useful for the detection of high-risk aortas for CAS and for the evaluation of safe approaches to the carotid artery.

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“…15 There have been several studies that showed variable and sometimes significant levels of dose reduction with use of ATCM, depending on body region and patient size. [16][17][18] It is important to be familiar with the different parameters of the ATCM technique to achieve appropriate image quality for each specific diagnostic task, to not generate images with lower noise than necessary. An appropriate minimum and maximum milliampere value with a designated noise index or SD (depending on the manufacturer) based on the observer preference is prudent to prevent an inappropriate increase in the image noise related to lower photon fluence.…”

Section: Current Strategies In Dose Reductionmentioning

confidence: 99%

Raise the Bar and Lower the Dose: Current and Future Strategies for Radiation Dose Reduction in Head and Neck Imaging

Ibrahim

Parmar

Christodoulou

et al. 2013

American Journal of Neuroradiology

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SUMMARY:Technologic advances in CT have generated a dramatic increase in the number of CT studies, with a resultant increase in the radiation dose related to CT scanning. Such increase in radiation dose is becoming a concern for the radiology community, especially with increasing public awareness of the dose burden related to examinations. To cope with the increase in CT-related radiation exposure, it is becoming necessary to optimize CT imaging protocols and apply radiation dose reduction techniques to ensure the best imaging with the lowest radiation dose.ABBREVIATIONS: ASIR ϭ adaptive statistical iterative reconstruction algorithm; ATCM ϭ automated tube current modulation; CTDI ϭ CT dose index; DLP ϭ

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Comparison of Image Quality and Radiation Dose between Fixed Tube Current and Combined Automatic Tube Current Modulation in Craniocervical CT Angiography

Cited by 39 publications

References 30 publications

Comparison of image quality and radiation dose between combined automatic tube current modulation and fixed tube current technique in CT of abdomen and pelvis

Comparison of image quality and radiation dose between combined automatic tube current modulation and fixed tube current technique in CT of abdomen and pelvis

Usefulness of Computed Tomography Angiography for the Detection of High-Risk Aortas for Carotid Artery Stenting

Raise the Bar and Lower the Dose: Current and Future Strategies for Radiation Dose Reduction in Head and Neck Imaging

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