Accuracy of cardiac magnetic resonance generated 3D models of the aortic annulus compared to cardiovascular computed tomography generated 3D models

Translating Imaging Into 3D Printed Cardiovascular Phantoms

“…Additional blood pool segmentation with either CMR angiography or 3D balanced steady-state free precession data sets has been shown to be the most accurate method to acquire images for AM by CMR. 46 As demonstrated by Gatti et al, 52 CCT and CMR provide similar accuracy when comparing 3DPSPs with intraoperative findings. Multiplane reconstructions of consecutive high-quality 2-dimensional images have recently made also 3D echocardiography 24 , 34 , 58 and rotational 3D angiography of large vessels 59 , 60 suitable to the requirements of AM.…”

“…The number of validated structures ranged from only 1 in each model to complete surface scanning. Original imaging data were mostly chosen as reference standards, while 4 studies used data from other imaging modalities, 13 , 51 , 52 , 53 and another 4 studies used in vivo findings as a reference standard. 47 , 52 , 54 , 55 Among the 10 largest studies (according to the validated number of 3DPSPs) that evaluated the geometric accuracy of 3DPSP, mean bias was <±1 mm, although heterogeneity in the validation process must be taken into account ( Table 1 ).…”

Latest Developments in Adapting Deep Learning for Assessing TAVR Procedures and Outcomes

“…In terms of clinical applications, cardiac CT is a routine test for planning TAVR [20]. Moreover, CT is widely used for accurate 3D reconstruction of major heart valves and arteries [21][22][23]. Recently, cardiac computed tomography angiography (CCTA), together with cardiac MRI, have been utilized to generate high-fidelity virtual simulations for cardiovascular procedures, which can help optimize the approaches for surgery before hospitalization [24].…”