Transcatheter Aortic Valve Replacement MRA Coronary Arteries Without IV Contrast There is no relevant literature to support the use of MRA coronary arteries without IV contrast as the initial imaging modality for the assessment of aortic root. Transcatheter Aortic Valve Replacement US Echocardiography Transesophageal In a retrospective analysis of 101 patients who underwent both preoperative MDCT and 3-D TEE for aortic annulus sizing for TAVR planning, the automatic software measurements showed very good agreement with manual values obtained using MDCT and 3-D TEE, with the interactive approach having slightly narrower limits of agreement. The latter also had excellent intra- and interobserver variability. Both fully automatic and interactive analyses showed excellent test-retest reproducibility, with the first having a faster analysis time. Finally, either approach led to good sizing agreement against the true implanted sizes (>77%) and against MDCT-based sizes (>88%) [53]. A retrospective analysis of 31 patients who underwent transcatheter aortic valve implantation showed an excellent correlation between the aortic annulus measurements obtained by both manual 3-D TEE method and by the automatic software method (intraclass correlation coefficient: 0.731 (0.508-0.862), r: 0.742) for aortic annulus diameter and (intraclass correlation coefficient: 0.723 (0.662-0.923), r: 0.723) for the aortic annulus area, with no significant differences regardless of the method used. The interobserver variability was superior for the automatic measurements than for the manual ones. In a subgroup of 10 patients, they also found an excellent correlation between the automatic measurements and those obtained by MDCT (intraclass correlation coefficient: 0.941 (0.761- 0.985), r: 0.901) for aortic annulus diameter and (intraclass correlation coefficient: 0.853 (0.409-0.964), r: 0.744) for the aortic annulus area.
Preprocedural Planning for Transcatheter Aortic Valve Replacement. Transcatheter Aortic Valve Replacement MRA Coronary Arteries Without IV Contrast There is no relevant literature to support the use of MRA coronary arteries without IV contrast as the initial imaging modality for the assessment of aortic root. Transcatheter Aortic Valve Replacement US Echocardiography Transesophageal In a retrospective analysis of 101 patients who underwent both preoperative MDCT and 3-D TEE for aortic annulus sizing for TAVR planning, the automatic software measurements showed very good agreement with manual values obtained using MDCT and 3-D TEE, with the interactive approach having slightly narrower limits of agreement. The latter also had excellent intra- and interobserver variability. Both fully automatic and interactive analyses showed excellent test-retest reproducibility, with the first having a faster analysis time. Finally, either approach led to good sizing agreement against the true implanted sizes (>77%) and against MDCT-based sizes (>88%) [53]. A retrospective analysis of 31 patients who underwent transcatheter aortic valve implantation showed an excellent correlation between the aortic annulus measurements obtained by both manual 3-D TEE method and by the automatic software method (intraclass correlation coefficient: 0.731 (0.508-0.862), r: 0.742) for aortic annulus diameter and (intraclass correlation coefficient: 0.723 (0.662-0.923), r: 0.723) for the aortic annulus area, with no significant differences regardless of the method used. The interobserver variability was superior for the automatic measurements than for the manual ones. In a subgroup of 10 patients, they also found an excellent correlation between the automatic measurements and those obtained by MDCT (intraclass correlation coefficient: 0.941 (0.761- 0.985), r: 0.901) for aortic annulus diameter and (intraclass correlation coefficient: 0.853 (0.409-0.964), r: 0.744) for the aortic annulus area.