Fluoroscopy is the intraoperative imaging modality of choice to facilitate the optimal
alignment of the transcatheter heart valve and aortic annulus during transcatheter
aortic valve implantation (TAVI).
1
Preprocedural computed tomography can predict the orthogonal projection angles of
the fluoroscopy C-arm with varying accuracy, previously reported at 40% to 50%.
2
In practice, the most common approach is to perform repeated “trial-and-error” aortograms
until the implantation fluoroscopic view is observed. The “follow the right cusp”
rule provides a guiding principle on fluoroscopy methods for TAVI
3
; however, this oversimplified algorithm does not consider the anatomic three-dimensional
structure and inherited angulation of the aortic root and can often lead to repeated
angiograms during TAVI.To read this article in full you will need to make a payment
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References
- Standard imaging techniques in transcatheter aortic valve replacement.J Thorac Dis. 2017; 9: S289-S298
- Accuracy of predicted orthogonal projection angles for valve deployment during transcatheter aortic valve replacement.J Cardiovasc Comput Tomogr. 2018; 12: 398-403
- Fluoroscopy-guided aortic root imaging for TAVR: “follow the right cusp” rule.JACC Cardiovasc Imaging. 2013; 6: 274-275
Article Info
Publication History
Published online: July 25, 2022
Received in revised form:
June 21,
2022
Received:
April 16,
2022
Identification
Copyright
© 2022 Elsevier Inc. All rights reserved.
