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Coletti, C. (author), Fotaki, Anastasia (author), Tourais, Joao (author), Zhao, Y. (author), van de Steeg-Henzen, Christal (author), Akçakaya, Mehmet (author), Tao, Q. (author), Prieto, Claudia (author), Weingärtner, S.D. (author)Purpose: The aim of this study is to develop and optimize an adiabatic (Formula presented.) ((Formula presented.)) mapping method for robust quantification of spin-lock (SL) relaxation in the myocardium at 3T. Methods: Adiabatic SL (aSL) preparations were optimized for resilience against (Formula presented.) and (Formula presented.)...journal article 2023
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Tourais, Joao (author), Ploem, T.W. (author), Zadelhoff, Tijmen A.van (author), Steeg-Henzen, Christal van de (author), Oei, Edwin H.G. (author), Weingärtner, S.D. (author)Objective: Quantitative Magnetic Resonance Imaging (MRI) holds great promise for the early detection of cartilage deterioration. Here, a Magnetic Resonance Fingerprinting (MRF) framework is proposed for comprehensive and rapid quantification of T <sub>1</sub>, T <sub>2</sub> <sup>∗</sup>, and T <sub>RAFF2</sub> with whole-knee coverage....journal article 2023
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Šiuryté, P. (author), Tourais, Joao (author), Weingärtner, S.D. (author)With sound pressure levels reaching up to 130 dB, acoustic noise in Magnetic Resonance Imaging (MRI) is one of the main sources of patient discomfort in otherwise one of the safest medical imaging modalities. In this work, a noise prediction-based approach, termed predictive noise cancelling (PNC), is applied, for the first time, to suppress...conference paper 2022
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Tourais, Joao (author), Demirel, Omer Burak (author), Tao, Q. (author), Pierce, Iain (author), Thornton, George D. (author), Treibel, Thomas A. (author), Akcakaya, Mehmet (author), Weingärtner, S.D. (author)Ischemic heart disease (IHD) is one of the leading causes of death worldwide. Myocardial infarction (MI) represents a third of all IHD cases, and cardiac magnetic resonance imaging (MRI) is often used to assess its damage to myocardial viability. Late gadolinium enhancement (LGE) is the current gold standard, but the use of gadolinium-based...conference paper 2022
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Coletti, C. (author), Tourais, Joao (author), Ploem, T.W. (author), van de Steeg-Henzen, Christal (author), Akcakaya, Mehmet (author), Weingärtner, S.D. (author)Magnetic Resonance Imaging (MRI) is the clinical gold standard for the assessment of myocardial viability but requires injection of exogenous gadolinium-based contrast agents. Recently, T1ρ-mapping has been proposed as a fully non-invasive alternative for imaging myocardial fibrosis without the need for contrast agent injection. However, its...conference paper 2022
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Tourais, Joao (author), Scannell, Cian M. (author), Schneider, Torben (author), Alskaf, Ebraham (author), Crawley, Richard (author), Bosio, Filippo (author), Sanchez-Gonzalez, Javier (author), Doneva, Mariya (author), Schülke, Christophe (author)Introduction: To develop and test the feasibility of free-breathing (FB), high-resolution quantitative first-pass perfusion cardiac MR (FPP-CMR) using dual-echo Dixon (FOSTERS; Fat-water separation for mOtion-corrected Spatio-TEmporally accelerated myocardial peRfuSion). Materials and Methods: FOSTERS was performed in FB using a dual...journal article 2022
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Gottwald, Lukas M. (author), Blanken, Carmen P.S. (author), Tourais, Joao (author), Smink, Jouke (author), Planken, R. Nils (author), Boekholdt, S. Matthijs (author), Meijboom, Lilian J. (author), Coolen, Bram F. (author), Strijkers, Gustav J. (author)Background: Respiratory gating is generally recommended in 4D flow MRI of the heart to avoid blurring and motion artifacts. Recently, a novel automated contact-less camera-based respiratory motion sensor has been introduced. Purpose: To compare camera-based respiratory gating (CAM) with liver-lung-navigator-based gating (NAV) and no gating ...journal article 2021