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Angiographic visualization of the coronary arteries in computed tomography with virtual contrast injection
Linköping University, Department of Medicine and Health Sciences, Radiology . Linköping University, Center for Medical Image Science and Visualization, CMIV. Linköping University, Faculty of Health Sciences.
Université de Bourgogne.
Linköping University, Center for Medical Image Science and Visualization, CMIV. Linköping University, Department of Medicine and Health Sciences, Radiology . Östergötlands Läns Landsting, Centre for Medical Imaging, Department of Radiology in Linköping. Linköping University, Faculty of Health Sciences.ORCID iD: 0000-0002-9446-6981
Linköping University, Center for Medical Image Science and Visualization, CMIV. Linköping University, Department of Medicine and Health Sciences, Radiology . Östergötlands Läns Landsting, Centre for Medical Imaging, Department of Radiology in Linköping. Linköping University, Faculty of Health Sciences.ORCID iD: 0000-0002-7750-1917
2006 (English)In: The Internet Journal of Radiology, ISSN 1528-8404, Vol. 4, no 2Article in journal (Refereed) Published
Abstract [en]

Computed Tomography Angiography (CTA) is a non-invasive alternative to catheter angiography but has had limited use in the coronary arteries due to resolution and visualization problems. Maximum intensity projection (MIP) is difficult to apply in the heart with numerous overlying contrast-filled structures. The study proposes virtual contrast injection, originally introduced for MR angiography, for visualizing the coronaries in CTA. Examination after i.v. contrast injection was made in a 16-slice CT. After virtual contrast injection (concurrent grayscale connectedness) separating the vessels, rendering of the right and left coronary separately was made with MIP and volume rendering (VRT). Images similar to invasive angiography were obtained in all 7 projections used in the clinical routine. The observer also has the possibility to freely select an optimal projection. After validation in larger materials, this may become a clinically useful non-invasive alternative for examining coronary arteries.

Place, publisher, year, edition, pages
Internet Scientific Publications, Llc. , 2006. Vol. 4, no 2
Keyword [en]
Coronary artery | Computed tomography angiography | visualization | post-processing | maximum intensity projection
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-21443OAI: oai:DiVA.org:liu-21443DiVA: diva2:241305
Available from: 2009-10-02 Created: 2009-10-02 Last updated: 2013-10-21

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Persson, AndersSmedby, Örjan

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Radiology Center for Medical Image Science and Visualization, CMIVFaculty of Health SciencesDepartment of Radiology in Linköping
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