eISSN: 1897-4295
ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
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1/2023
vol. 19
 
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abstract:
Original paper

Computed tomography and transthoracic echocardiography for assessment of left ventricle geometry in patients with aortic valve stenosis

Agata Krawczyk-Ożóg
1, 2
,
Jakub Batko
1
,
Mateusz Koziej
1
,
Tomasz Tokarek
3, 4
,
Danuta Sorysz
2, 5
,
Zbigniew Siudak
6
,
Dariusz Dudek
7
,
Stanisław Bartuś
2, 5
,
Andrzej Surdacki
2, 5
,
Mateusz K. Hołda
1

1.
HEART – Heart Embryology and Anatomy Research Team, Department of Anatomy, Jagiellonian University Medical College, Krakow, Poland
2.
Clinical Department of Cardiology and Cardiovascular Interventions, University Hospital, Krakow, Poland
3.
Center for Innovative Medical Education, Jagiellonian University Medical College, Krakow, Poland
4.
Center for Invasive Cardiology, Electrotherapy and Angiology, Nowy Sacz, Poland
5.
Second Department of Cardiology, Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland
6.
Faculty of Medicine and Health Science, Jan Kochanowski University, Kielce, Poland
7.
Digital Medicine and Robotics Center, Jagiellonian University Medical College, Krakow, Poland
Adv Interv Cardiol 2023; 19, 1 (71): 47–55
DOI: https://doi.org/10.5114/aic.2023.124406
Online publish date: 2023/01/23
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Introduction:
Standard transthoracic echocardiography (TTE) often is not sufficient to properly visualize the geometry of the left ventricle. One of the clinical imaging modalities that can be used for this purpose is contrast-enhanced, electrocardiologically gated cardiac computed tomography (CT).

Aim:
To compare cardiac CT and TTE as tools for assessing geometry and function of the left ventricle in patients with severe aortic stenosis.

Material and methods:
We analyzed 58 consecutive patients (43.1% males, mean age 81.4 ±6.0 years) with severe aortic stenosis, who underwent both cardiac CT and TTE.

Results:
Left ventricle major axis length is significantly longer in CT than in TTE (81.5 ±11.7 mm vs. 74.6 ±13.5 mm, p = 0.004). No difference was found in end-systolic left ventricle volume between the two imaging methods, while end-diastolic volume of the left ventricle was significantly larger when measured in CT than in both 2D biplane and 3D triplane TTE. The stroke volume was not different between the 2D biplane TTE and CT. No significant difference was found between CT and TTE in the calculation of ejection fraction and LV mass/indexed LV mass (p > 0.05).

Conclusions:
The use of three-dimensional postprocessing provides a very accurate image of heart structures in CT, which in some aspects may significantly differ from the values estimated by TTE.

keywords:

computed tomography, transthoracic echocardiography, aortic stenosis, image segmentation, left ventricle geometry
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