Determinants of Effective Height in Morphologically Normal Tricuspid Aortic Valves: A Computed Tomography-Based Anatomical Study
Abstract
Objectives: To analyse the relationship between effective height (eH) and other morphological parameters of the aortic valve complex when the aortic valve is closed.
Methods: We retrospectively analysed 105 patients (mean age 70.7 ± 10.1 years) with morphologically normal aortic valves, roots, or ascending aortas who had undergone electrocardiography-gated cardiac computed tomography as a screening test for the coronary artery, from August 2014 to December 2018. Parameters of the aortic valve complex configuration (eH, geometric height (gH), aortic annular diameter (AN diameter), sinus of Valsalva diameter, sinotubular junction (ST-J) diameter, commissure height, and Valsalva height) in diastole were measured using Ziostation2 software. Pearson’s correlation was used to evaluate the associations between the eH and other parameters. Multiple regression analysis was performed to evaluate the variables independently associated with eH.
Results: Significant associations were observed between the eH and gH, sinus of Valsalva diameter, ST-J diameter, commissure height, and Valsalva height (all P < .001) but not between eH and AN diameter (P = .227). Multivariable analysis showed that gH, AN diameter, and ST-J diameter were independently associated with eH (all P < .001; overall model fit: R2 = 0.739).
Conclusions: Our findings demonstrate that eH is strongly associated with gH, which remained independently associated after adjustment, along with aortic annular and ST-J diameters. These results provide quantitative in vivo evidence regarding the anatomical determinants of eH in morphologically normal tricuspid aortic valves and may serve as anatomical reference data for future research on individualized approaches to aortic valve repair.
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BibTeX
@article{ishida2026determinants,
title = {{Determinants of Effective Height in Morphologically Normal Tricuspid Aortic Valves: A Computed Tomography-Based Anatomical Study}},
author = {Keiichi Ishida and Takashi Igarashi and Hitoshi Yokoyama and Kenichi Imasaka},
journal = {Interdisciplinary Cardiovascular and Thoracic Surgery},
year = {2026},
month = aug,
doi = {10.1093/icvts/ivag233},
url = {https://doi.org/10.1093/icvts/ivag233},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Determinants of Effective Height in Morphologically Normal Tricuspid Aortic Valves: A Computed Tomography-Based Anatomical Study
AU - Keiichi Ishida
AU - Takashi Igarashi
AU - Hitoshi Yokoyama
AU - Kenichi Imasaka
PY - 2026
DA - 2026/08/20
JO - Interdisciplinary Cardiovascular and Thoracic Surgery
DO - 10.1093/icvts/ivag233
UR - https://doi.org/10.1093/icvts/ivag233
AB - Objectives: To analyse the relationship between effective height (eH) and other morphological parameters of the aortic valve complex when the aortic valve is closed. Methods: We retrospectively analysed 105 patients (mean age 70.7 ± 10.1 years) with morphologically normal aortic valves, roots, or ascending aortas who had undergone electrocardiography-gated cardiac computed tomography as a screening test for the coronary artery, from August 2014 to December 2018. Parameters of the aortic valve complex configuration (eH, geometric height (gH), aortic annular diameter (AN diameter), sinus of Valsalva diameter, sinotubular junction (ST-J) diameter, commissure height, and Valsalva height) in diastole were measured using Ziostation2 software. Pearson’s correlation was used to evaluate the associations between the eH and other parameters. Multiple regression analysis was performed to evaluate the variables independently associated with eH. Results: Significant associations were observed between the eH and gH, sinus of Valsalva diameter, ST-J diameter, commissure height, and Valsalva height (all P < .001) but not between eH and AN diameter (P = .227). Multivariable analysis showed that gH, AN diameter, and ST-J diameter were independently associated with eH (all P < .001; overall model fit: R2 = 0.739). Conclusions: Our findings demonstrate that eH is strongly associated with gH, which remained independently associated after adjustment, along with aortic annular and ST-J diameters. These results provide quantitative in vivo evidence regarding the anatomical determinants of eH in morphologically normal tricuspid aortic valves and may serve as anatomical reference data for future research on individualized approaches to aortic valve repair.
SN - 2753-670X
ER -