The contribution of Computed Tomography for the planning of Transcatheter Aortic Valve Implantation. An overview of required measurements and their use

Myrsini Stasinopoulou, Nefeli Andrioti Petropoulou, Constantinos Deliveliotis

Abstract


Transcatheter aortic valve implantation (TAVI) is an alternative treatment for inoperable patients with symptomatic severe aortic valve stenosis. This procedure is a validated and effective treatment option with increasingly clinical implementation in the last decade. The careful selection of TAVI candidates is of great importance for a successful procedure and can be achieved with the contribution of Computed Tomography (CT), as CT is the main imaging method that provides information required for the selection of bio-prosthesis and the access routes. CT pre-TAVI includes specified measurements of the aortic valvular complex on reconstructed CT images in the true plane of the aortic annulus and also the investigation of possible endovascular or extravascular access routes. The CT scanning protocol and the contrast agent dose must be modified in such a way to provide high-quality CT images with a minimum of contrast amount, regarding the advanced age patients. There are advantages and limitations of CT-examination that will be discussed. Finally, the derived results of CT pre-TAVI have to be reported in a template to facilitate communication between radiologists and cardiologists.


Keywords


Transcatheter aortic valve implantation; Computed Tomography; Aortic valve stenosis

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References


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DOI: http://dx.doi.org/10.36162/hjr.v7i1.480

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