Phase contrast magnetic resonance imaging

Phase contrast magnetic resonance imaging (PC-MRI) is a technique that uses magnetic resonance imaging to visualize and quantify blood flow in the heart and great vessels. It is a well-established method that can provide useful measurements of flow rates in vessels, and is often used in conjunction with other techniques such as Trans-Cranial Doppler ultrasonography and video densitometry from X-ray images in in vivo experiments.From: Medical Image Analysis and Informatics: Computer-Aided Diagnosis and Therapy [2018], 1D simulation of blood flow characteristics in the circle of Willis using THINkS [2018]

CAD of Cardiovascular Diseases

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Published in de Azevedo-Marques Paulo Mazzoncini, Mencattini Arianna, Salmeri Marcello, Rangayyan Rangaraj M., Medical Image Analysis and Informatics: Computer-Aided Diagnosis and Therapy, 2018

Marco A. Gutierrez, Marina S. Rebelo, Ramon A. Moreno, Anderson G. Santiago, Maysa M. G. Macedo

2D Phase-Contrast magnetic resonance imaging (PC-MRI) is a well-established technique to visualize and quantify blood flow in the heart and great vessels. (Salerno & Kramer 2013; Santarelli et al. 2016, Stankovic et al. 2014). 4D flow MRI is the volumetric extension of this technique, whose acquisition methods encode velocity along the three spatial axes throughout the cardiac cycle, resulting in a time-resolved 3D velocity field (Stankovic et al. 2014; Santarelli et al. 2016).

Patient-specific hemodynamics simulations: model parameterization from clinical data to enable interventional planning

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Published in Computer Methods in Biomechanics and Biomedical Engineering, 2019

Irene E. Vignon-Clementel, Sanjay Pant

Depending on the considered application, available measurements besides imaging data to build the 3D geometry vary. Direct or surrogate measurements of flow and/or pressure are considered:phase-contrast magnetic resonance imaging provides flow rate over time on a surface and if the spatial resolution is fine enough even a velocity profile and its time evolution,catheterization leads to pressure over time at a given location (direct or wedge as a surrogate),Doppler ultrasound can provide maximum (in a small volume) velocity over time, typically interpreted as a flow rate over time assuming a certain flow profile on a surface or by direct integration of the machine.

Phase contrast magnetic resonance imaging

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CAD of Cardiovascular Diseases

Patient-specific hemodynamics simulations: model parameterization from clinical data to enable interventional planning