NetForum uses cookies to ensure that we give you the best experience on our website. If you continue to use the site, we'll assume that you are happy to receive these cookies on the NetForum website. Read about our cookies.
NetForum Community
Learn. Share. Optimize.
Log in | Sign up now | Submit content | Contact
Go to similar content

Coronary artery assessment by multidetector CT in patients with prosthetic heart valves

Publication
Philips CT Clinical Science Philips Healthcare • USA

Habets J, van den Brink RB, Uijlings R, Spijkerboer AM, Mali WP, Chamuleau SA, Budde RP.

* This article originally published in the June 2012 edition of European Radiology.
Objectives
Patients with prosthetic heart valves may require assessment for coronary artery disease. We assessed whether valve artefacts hamper coronary artery assessment by multidetector CT.

Methods
ECG-gated or -triggered CT angiograms were selected from our PACS archive based on the presence of prosthetic heart valves. The best systolic and diastolic axial reconstructions were selected for coronary assessment. Each present coronary segment was scored for the presence of valve-related artefacts prohibiting coronary artery assessment. Scoring was performed in consensus by two observers.

Results
Eighty-two CT angiograms were performed on a 64-slice (n = 27) or 256-slice (n = 55) multidetector CT. Eighty-nine valves and five annuloplasty rings were present. Forty-three out of 1160 (3.7%) present coronary artery segments were non-diagnostic due to valve artefacts (14/82 patients). Valve artefacts were located in right coronary artery (15/43; 35%), left anterior descending artery (2/43; 5%), circumflex artery (14/43; 32%) and marginal obtuse (12/43; 28%) segments. All cobalt-chrome containing valves caused artefacts prohibiting coronary assessment. Biological and titanium-containing valves did not cause artefacts except for three specific valve types.

Conclusions
Most commonly implanted prosthetic heart valves do not hamper coronary assessment on multidetector CT. Cobalt-chrome containing prosthetic heart valves preclude complete coronary artery assessment because of severe valve artefacts.

Key Points
  • Most commonly implanted prosthetic heart valves do not hamper coronary artery assessment 
  • Prosthetic heart valve composition determines the occurrence of prosthetic heart valve-related artefacts 
  • Björk-Shiley and Sorin tilting disc valves preclude diagnostic coronary artery segment assessment.
For more information about this publication, check out the PubMed listing for this article.


This content has been made possible by NetForum Community.
Share this on: Share your link in twitter Share your link in facebook Share your link on LinkedIn Print Rate this article: Log in to vote

 
Rating:
Votes:
0
Views:
900
Added:
Aug 20, 2013

Rate this:
Log in to vote
 

Publication
Brilliance 64-channel
2012 scientific publications, Cardiac, coronary angiography, coronary arteries, coronary artery disease, ECG-gated, Extended Brilliance Workspace 4.0, LAD, RCA, Vascular
 

Clinical News
Best Practices
Case Studies
Publications and Abstracts
White Papers
Web seminars and Presentations
ExamCards
Protocols
Application Tips and FAQ
Training
Try an Application
Business News
Case Studies
White Papers
Web Seminars and Presentations
Utilization Services
Contributing Professionals
Contributing Institutions
Become a Contributor