Cyclic changes in area- and perimeter-derived effective dimensions of the aortic annulus measured with multislice computed tomography and comparison with metric intraoperative sizing

Clinical Research in Cardiology : Official Journal of the German Cardiac Society
Won-Keun KimJörg Kempfert

Abstract

Multislice computed tomography (MSCT) is recommended for annular sizing prior to transcatheter aortic valve implantation (TAVI), but it remains unclear whether systolic or diastolic reconstructions should be used and whether the effective annular diameter should be derived by area or perimeter. In this study these different approaches were compared with intraoperative sizing. In 52 patients who were evaluated but deemed unsuitable for TAVI, the annulus was measured during conventional surgery using metric sizers (AnnOp) and compared with MSCT measurements (cross-sectional diameter derived by area [AnnAsys, AnnAdia; AnnAmean = (AnnAsys + AnnAdia)/2] and perimeter (AnnPsys, AnnPdia) in systole and diastole). Furthermore, TAVI was simulated based on AnnOp and the impact of the various MSCT approaches on sizing strategy was determined. The best agreement with AnnOp [mean difference (limits of agreement)] was shown for AnnAmean [0.03 mm (-1.9 to 1.96)], whereas the strongest deviation was noted for AnnPsys [-1.08 mm (-3.01 to 0.86)]. Mean differences between systole and diastole were significant but small: 0.82 mm (3.5 %) for area- and 0.81 mm (3.3 %) for perimeter-derived measurements. Simulation of TAVI revealed the least change o...Continue Reading

References

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Feb 12, 2014·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Crochan J O'SullivanStephan Windecker
Jun 9, 2014·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Gerhard SchymikHolger Schröfel
Jan 7, 2015·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Maksymilian P OpolskiHelge Möllmann

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Citations

Jun 30, 2016·European Heart Journal Cardiovascular Imaging·Mohammad AbdelghaniPatrick W Serruys
Aug 11, 2017·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Won-Keun KimHelge Möllmann
Feb 13, 2018·Current Cardiology Reports·Caroline Bleakley, Mark J Monaghan
Mar 18, 2017·Echo Research and Practice·Caroline BleakleyMark Monaghan
Jun 1, 2018·Journal of Healthcare Engineering·Ning GuoYinghui Li
Jun 18, 2018·The International Journal of Cardiovascular Imaging·Barbora HorehledovaMarco Das
Jul 25, 2020·Annals of Biomedical Engineering·Adi MoranyRami Haj-Ali
Jul 14, 2018·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Bernhard WernlyAlexander Lauten
Jun 29, 2017·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Petra HoppmannChristian Kupatt

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