Browsing by Author "Henningsson, Markus"
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- Item3D myocardial T-1 mapping using saturation recovery(2017) Nordio, Giovanna; Henningsson, Markus; Chiribiri, Amedeo; Villa, Adriana D. M.; Schneider, Torben; Botnar, René Michael
- Item3D SASHA myocardial T1 mapping with high accuracy and improved precision(2019) Nordio, Giovanna; Bustin, Aurélien; Henningsson, Markus; Rashid, Imran; Chiribiri, Amedeo; Ismail, Tevfik; Odille, Freddy; Prieto Vásquez, Claudia; Botnar, René Michael
- ItemA clinical combined gadobutrol bolus and slow infusion protocol enabling angiography, inversion recovery whole heart, and late gadolinium enhancement imaging in a single study(2016) Tandon, Animesh; James, Lorraine; Henningsson, Markus; Botnar, René Michael; Potersnak, Amanda; Greil, Gerald F; Hussain, TariqueAbstract Background The use of gadolinium contrast agents in cardiovascular magnetic resonance is well-established and serves to improve both vascular imaging as well as enable late gadolinium enhancement (LGE) imaging for tissue characterization. Currently, gadofosveset trisodium, an intravascular contrast agent, combined with a three-dimensional inversion recovery balanced steady state free precession (3D IR bSSFP) sequence, is commonly used in pediatric cardiac imaging and yields excellent vascular imaging, but cannot be used for late gadolinium enhancement. Gadofosveset use remains limited in clinical practice, and manufacture was recently halted, thus an alternative is needed to allow 3D IR bSSFP and LGE in the same study. Methods Here we propose a protocol to give a bolus of 0.1 mL/kg = 0.1 mmol/kg gadobutrol (GADAVIST/GADOVIST) for time-resolved magnetic resonance angiography (MRA). Subsequently, 0.1 mmol/kg is diluted up to 5 or 7.5 mL with saline and then loaded into intravenous tubing connected to the patient. A 0.5 mL short bolus is infused, then a slow infusion is given at 0.02 or 0.03 mL/s. Image navigated (iNAV) 3D IR bSSFP imaging is initiated 45–60 s after the initiation of the infusion, with a total image acquisition time of ~5 min. If necessary, LGE imaging using phase sensitive inversion recovery reconstruction (PSIR) is performed at 10 min after the infusion is initiated. Results We have successfully performed the above protocol with good image quality on 10 patients with both time-resolved MRA and 3D IR bSSFP iNAV imaging. Our initial attempts to use pencil beam respiratory navigation failed due to signal labeling in the liver by the navigator. We have also performed 2D PSIR LGE successfully, with both LGE positive and LGE negative results. Conclusion A bolus of gadobutrol, followed later by a slow infusion, allows time-resolved MRA, 3D IR bSSFP using the iNAV navigation technique, and LGE imaging, all in a single study with a single contrast agent.
- ItemCombined coronary lumen and vessel wall magnetic resonance imaging with i-T2prep : influence of nitroglycerin(2015) Hussain, Tarique; Henningsson, Markus; Butzbach, Britta; Lossnitzer, Dirk; Greil, Gerald F.; Andía Kohnenkampf, Marcelo Edgardo; Botnar, René Michael
- ItemFlow-independent 3D whole-heart vessel wall imaging using an interleaved T2-preparation acquisition(2013) Andía Kohnenkampf, Marcelo Edgardo; Henningsson, Markus; Hussain, Tarique; Phinikaridou, Alkystis; Protti, Andrea; Greil, Gerald; Botnar, René Michael
- ItemHighly Efficient Nonrigid Motion-Corrected 3D Whole-Heart Coronary Vessel Wall Imaging(2017) Cruz, Gastao; Atkinson, David; Henningsson, Markus; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemImproved coronary magnetic resonance angiography using gadobenate dimeglumine in pediatric congenital heart disease(2018) Silva Vieira, Miguel; Henningsson, Markus; Dedieu, Nathalie; Vassiliou, Vassilios S.; Bell, Aaron; Mathur, Sujeev; Pushparajah, Kuberan; Figueroa, Carlos Alberto; Hussain, Tarique; Botnar, René Michael; Greil, Gerald F.
- ItemSimultaneous Assessment of Cardiac Inflammation and Extracellular Matrix Remodeling After Myocardial Infarction(2018) Ramos, Isabel T.; Henningsson, Markus; Nezafat, Maryam; Lavín, Begoña; Lorrio, Silvia; Gebhardt, Pierre; Protti, Andrea; Eykyn, Thomas R.; Andía Kohnenkampf, Marcelo Edgardo; Botnar, René Michael; Floögel, Ulrich; Phinikaridou, Alkystis; Shah, Ajay M.