Algorithm comparison for cardiac image fusion of coronary computed tomography angiography and 3D echocardiography

Nordenfur, Tim; Babić, Aleksandar; Bulatović, Ivana; Giesecke, Anders; Gunyeli, E.; Ripsweden, Jonaz; Samset, Eigil; Winter, Reidar; Larsson, Matilda

doi:10.1109/ultsym.2015.0105

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…To compare PC-MRI with CFD simulations, the MRI images were fused with 4DTTE using a 3-chamber alignment algorithm [39]. Temporal alignment was achieved using ECGdata recorded both during 4DTTE and PC-MRI acquisition, with CFD data temporally registered to overlap with PC-MRI at ED and ES.…”

Section: Magnetic Resonance Imaging Validationmentioning

confidence: 99%

Patient-Specific Left Ventricular Flow Simulations From Transthoracic Echocardiography: Robustness Evaluation and Validation Against Ultrasound Doppler and Magnetic Resonance Imaging

Larsson

Spühler

Petersson

et al. 2017

IEEE Trans. Med. Imaging

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The combination of medical imaging with computational fluid dynamics (CFD) has enabled the study of 3-D blood flow on a patient-specific level. However, with models based on gated high-resolution data, the study of transient flows, and any model implementation into routine cardiac care, is challenging. This paper presents a novel pathway for patient-specific CFD modelling of the left ventricle (LV), using 4-D transthoracic echocardiography (TTE) as input modality. To evaluate the clinical usability, two sub-studies were performed. First, a robustness evaluation was performed, where repeated models with alternating input variables were generated for six subjects and changes in simulated output quantified. Second, a validation study was carried out, where the pathway accuracy was evaluated against pulsed-wave Doppler (100 subjects), and 2-D through-plane phase-contrast magnetic resonance imaging measurements over seven intraventricular planes (6 subjects). The robustness evaluation indicated a model deviation of <12%, with highest regional and temporal deviations at apical segments and at peak systole, respectively. The validation study showed an error of <11% (velocities <10 cm/s) for all subjects, with no significant regional or temporal differences observed. With the patient-specific pathway shown to provide robust output with high accuracy, and with the pathway dependent only on 4-D TTE, the method has a high potential to be used within future clinical studies on 3-D intraventricular flow patterns. To this, future model developments in the form of e.g., anatomically accurate LV valves may further enhance the clinical value of the simulations.

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Section: Magnetic Resonance Imaging Validationmentioning

confidence: 99%

Patient-Specific Left Ventricular Flow Simulations From Transthoracic Echocardiography: Robustness Evaluation and Validation Against Ultrasound Doppler and Magnetic Resonance Imaging

Larsson

Spühler

Petersson

et al. 2017

IEEE Trans. Med. Imaging

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“…These methods are validated and evaluated in patients with suspected CAD by comparison with manually identified landmarks. Note that this paper represents an extension of preliminary results published in conference proceedings 19 …”

Section: Introductionmentioning

confidence: 72%

Method comparison for cardiac image registration of coronary computed tomography angiography and 3-D echocardiography

et al. 2018

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Abstract. Treatment decision for coronary artery disease (CAD) is based on both morphological and functional information. Image fusion of coronary computed tomography angiography (CCTA) and three-dimensional echocardiography (3DE) could combine morphology and function into a single image to facilitate diagnosis. Three semiautomatic feature-based methods for CCTA/3DE registration were implemented and applied on CAD patients. Methods were verified and compared using landmarks manually identified by a cardiologist. All methods were found feasible for CCTA/3DE fusion. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Multimodal validation of patient-specific intraventricular flow simulations from 4D echocardiography

Larsson

Spühler

Petersson

et al. 2016

2016 IEEE International Ultrasonics Symposium (IUS)

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Algorithm comparison for cardiac image fusion of coronary computed tomography angiography and 3D echocardiography

Cited by 3 publications

References 10 publications

Patient-Specific Left Ventricular Flow Simulations From Transthoracic Echocardiography: Robustness Evaluation and Validation Against Ultrasound Doppler and Magnetic Resonance Imaging

Patient-Specific Left Ventricular Flow Simulations From Transthoracic Echocardiography: Robustness Evaluation and Validation Against Ultrasound Doppler and Magnetic Resonance Imaging

Method comparison for cardiac image registration of coronary computed tomography angiography and 3-D echocardiography

Multimodal validation of patient-specific intraventricular flow simulations from 4D echocardiography

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