Mulitmedia Library
Computed tomography imaging for subclinical leaflet thrombosis following surgical and transcatheter aortic valve replacement
Subclinical leaflet thrombosis (LT) may occur following surgical and transcatheter aortic valve replacement. Computed tomography (CT) has become an established imaging modality to diagnose subclinical LT following bioprosthetic aortic valve replacement. Even so, there is a limited (but growing) experience in utilizing CT imaging for this indication. This review emphasizes a systematic approach to acquiring and analysing CT imaging for subclinical LT, highlighting evidence surrounding clinical sequelae of subclinical LT and anti-thrombotic implications following diagnosis.Systolic or diastolic CT image acquisition for transcatheter aortic valve replacement – An outcome analysis
Computed tomography (CT) imaging is the standard of care before transcatheter aortic valve replacement (TAVR). The aortic annulus undergoes conformational changes during the heart cycle. Therefore, the image acquisition time point can impact prosthesis sizing and fit. Clinical outcome data are lacking. The aim of this study was to compare systolic and diastolic cardiac CT data acquisition with regard to procedural and clinical outcomes in patients undergoing TAVR for severe aortic stenosis (AS).Prospective evaluation of the learning curve and diagnostic accuracy for Pre-TAVI cardiac computed tomography analysis by cardiologists in training: The LEARN-CT study
To investigate the learning curve and the minimum number of cases required for a cardiologist in training to acquire the skills to an accurate pre-TAVI cardiac CT (CCT) analysis using a semi-automatic software.Clinical outcomes following transcatheter aortic valve implantation in patients with porcelain aorta
Current guidelines favor transcatheter aortic valve implantation (TAVI) over surgical aortic valve replacement in patients with porcelain aorta (PAo). The clinical relevance of PAo in patients undergoing TAVI is however incompletely understood. The purpose of this study is to evaluate clinical outcome of patients with PAo undergoing TAVI.Clinical impact of mitral calcium volume in patients undergoing transcatheter aortic valve implantation
Mitral annular calcification (MAC) has been associated with mitral valve (MV) disease and cardiovascular events in patients undergoing transcatheter aortic valve implantation (TAVI). We aimed to investigate the incidence and impact of mitral calcium volume (MCV) quantified by multidetector computed tomography (MDCT) on MV function and clinical outcomes after TAVI.Annular versus supra-annular sizing for transcatheter aortic valve replacement in bicuspid aortic valve disease
CT measurement of supra-annular area (SA) has been proposed as an alternative to annular area (AA) for sizing of trancatheter valves in biscuspid aortic valves (BAV). This study examines the reproducibility of SA and AA measurements and their potential impact on downstream transcatheter heart valve sizing and clinical outcomes.Bicuspid aortic valve sizing for transcatheter aortic valve implantation: Development and validation of an algorithm based on multi-slice computed tomography
No indication are available for transcatheter aortic valve implantation (TAVI) sizing in bicuspid aortic valve (BAV). Aim of the study is to develop and validate a Multi-Slice Computed Tomography (MSCT)-based algorithm for transcatheter heart valve (THV) sizing in patients with stenotic BAV under evaluation for TAVI.Reproducibility of aortic valve calcification scoring with computed tomography – An interplatform analysis
To investigate whether aortic valve calcification (AVC) scoring performed with different workstation platforms generates comparable and thus software-independent results.Global longitudinal strain assessment by computed tomography in severe aortic stenosis patients - Feasibility using feature tracking analysis
Global longitudinal strain (GLS) detects subclinical myocardial changes in patients with aortic stenosis (AS). Although GLS is typically measured by transthoracic echocardiography (TTE), assessment by multiphasic gated computed tomography angiography (CTA) has become recently available. We sought to evaluate the feasibility of CTA-derived GLS assessment and compare its agreement with TTE using the same post-processing software in severe AS patients undergoing transcatheter aortic valve replacement (TAVR) evaluation.Computed tomography evaluation for transcatheter aortic valve implantation (TAVI): Imaging of the aortic root and iliac arteries
For patients with severe aortic stenosis, open-heart surgical valve replacement remains the current clinical standard with documented, excellent long-term outcome. Over the past few years, transcatheter aortic valve implantation (TAVI) has developed into a treatment alternative for high-risk patients with severe aortic stenosis. Because transcatheter valvular procedures are characterized by lack of exposure of the operative field, image guidance is critical. This Pictorial Essay describes the role of 3-dimensional imaging with multidetector row computed tomography for detailed reconstructions of the aortic valve, aortic root, and iliac arteries in the context of TAVI.
