Asset Details
Do you wish to reserve the book?
Prospectively ECG-triggered sequential dual-source coronary CT angiography in patients with atrial fibrillation: comparison with retrospectively ECG-gated helical CT
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Prospectively ECG-triggered sequential dual-source coronary CT angiography in patients with atrial fibrillation: comparison with retrospectively ECG-gated helical CT
Do you wish to request the book?
Prospectively ECG-triggered sequential dual-source coronary CT angiography in patients with atrial fibrillation: comparison with retrospectively ECG-gated helical CT
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Prospectively ECG-triggered sequential dual-source coronary CT angiography in patients with atrial fibrillation: comparison with retrospectively ECG-gated helical CT
2013
Overview
Objective
To investigate the feasibility of applying prospectively ECG-triggered sequential coronary CT angiography (CCTA) to patients with atrial fibrillation (AF) and evaluate the image quality and radiation dose compared with a retrospectively ECG-gated helical protocol.
Methods
100 patients with persistent AF were enrolled. Fifty patients were randomly assigned to a prospective protocol and the other patients to a retrospective protocol using a second-generation dual-source CT (DS-CT). Image quality was evaluated using a four-point grading scale (1 = excellent, 2 = good, 3 = moderate, 4 = poor) by two reviewers on a per-segment basis. The coronary artery segments were considered non-diagnostic with a quality score of 4. The radiation dose was evaluated.
Results
Diagnostic segment rate in the prospective group was 99.4 % (642/646 segments), while that in the retrospective group was 96.5 % (604/626 segments) (
P
< 0.001). Effective dose was 4.29 ± 1.86 and 11.95 ± 5.34 mSv for each of the two protocols (
P
< 0.001), which was a 64 % reduction in the radiation dose for prospective sequential imaging compared with retrospective helical imaging.
Conclusion
In AF patients, prospectively ECG-triggered sequential CCTA is feasible using second-generation DS-CT and can decrease >60 % radiation exposure compared with retrospectively ECG-gated helical imaging while improving diagnostic image quality.
Key Points
•
Coronary computed tomographic angiography (CCTA) can be difficult in patients with arrhythmias.
•
Prospectively ECG-triggered sequential CCTA is feasible in patients with atrial fibrillation.
•
Prospective sequential imaging can improve quality compared with retrospective analysis.
•
Prospective sequential imaging decreases radiation exposure by 64 % compared with retrospective mode.
Publisher
Springer-Verlag,Springer Nature B.V
Subject
/ Aged
/ Atrial Fibrillation - diagnosis
/ Atrial Fibrillation - diagnostic imaging
/ Cardiac
/ Cardiac-Gated Imaging Techniques - methods
/ Coronary Angiography - methods
/ Electrocardiography - methods
/ Female
/ Humans
/ Image Processing, Computer-Assisted
/ Imaging
/ Male
/ Medicine
/ Tomography, Spiral Computed - methods
