5 results on '"Bhamra-Ariza P"'
Search Results
2. Myocardial Perfusion Imaging After Coronary Artery Bypass Surgery Using Cardiovascular Magnetic Resonance
- Author
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Arnold, J. Ranjit, Francis, Jane M., Karamitsos, Theodoros D., Lim, Chris C., Gaal, William J. van, Testa, Luca, Bhamra-Ariza, Paul, Selvanayagam, Joseph B., Sayeed, Rana, Westaby, Stephen, Banning, Adrian P., Neubauer, Stefan, and Jerosch-Herold, Michael
- Abstract
Absolute quantification of perfusion with cardiovascular magnetic resonance has not previously been applied in patients with coronary artery bypass grafting (CABG). Owing to increased contrast bolus dispersion due to the greater distance of travel through a bypass graft, this approach may result in systematic underestimation of myocardial blood flow (MBF). As resting MBF remains normal in segments supplied by noncritical coronary stenosis (<85), measurement of perfusion in such territories may be utilized to reveal systematic error in the quantification of MBF. The objective of this study was to test whether absolute quantification of perfusion with cardiovascular magnetic resonance systematically underestimates MBF in segments subtended by bypass grafts.
- Published
- 2011
3. Nicotine Addiction and Coronary Artery Disease: Impact of Cessation Interventions
- Author
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Gaemperli, Oliver, Liga, Riccardo, Bhamra-Ariza, Paul, and Rimoldi, Ornella
- Abstract
Cigarette smoking is the leading preventable cause of death worldwide, and a considerable proportion of smoking-related fatalities are attributable to coronary artery disease (CAD). The detrimental effects of smoking span all stages in the development of CAD ranging from the early functional alterations in the endothelium and the microcirculation to the late clinicopathological manifestations of atherosclerotic plaques. Smoking results in the generation of free radicals and increased oxidative stress which plays a central role in the pathogenetic mechanisms leading to atherosclerotic disease. It causes reduced nitric oxide bioavailability and lipid peroxidation which are crucial initial steps of plaque formation. Furthermore, smoking enhances leukocyte and platelet activation and promotes local and systemic inflammation, which contribute to plaque progression and maturation. Finally, alterations in fibrinolytic and prothrombotic factors create a pro-thrombogenic environment which harbours the risk of plaque rupture and thrombosis. In smokers, the cessation of smoking is the most important intervention for cardiovascular risk reduction. Total mortality can be reduced by 36 which is comparable to established modern secondary preventive therapies. Nonetheless, non-aided cessation attempts are notoriously poor with a success rate of less than 10. Patient counselling and pharmacological therapies are important aides for smoking cessation and can improve success rates by two to threefold. However, there is still need for improved strategies of smoking cessation to reduce the high socioeconomic impact of smoking.
- Published
- 2010
4. Relationship Between Regional Myocardial Oxygenation and Perfusion in Patients With Coronary Artery Disease
- Author
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Karamitsos, Theodoros D., Leccisotti, Lucia, Arnold, Jayanth R., Recio-Mayoral, Alejandro, Bhamra-Ariza, Paul, Howells, Ruairidh K., Searle, Nick, Robson, Matthew D., Rimoldi, Ornella E., Camici, Paolo G., Neubauer, Stefan, and Selvanayagam, Joseph B.
- Abstract
It is recognized that the interplay between myocardial ischemia, perfusion, and oxygenation in the setting of coronary artery disease (CAD) is complex and that myocardial oxygenation and perfusion may become dissociated. Blood oxygen level–dependent (BOLD) cardiovascular magnetic resonance (CMR) has the potential to noninvasively measure myocardial oxygenation, whereas positron emission tomography (PET) with oxygen-15 labeled water is the gold standard technique for myocardial blood flow quantification. Thus, we sought to apply BOLD CMR at 3 T and oxygen-15–labeled water PET in patients with CAD and normal volunteers to better understand the relationship between regional myocardial oxygenation and blood flow during vasodilator stress.
- Published
- 2010
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5. Abstracts
- Author
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Treibel, Thomas A., Fridman, Yaron, Hackman, Brianne, Kadakkal, Ajay, Sayeed, Aatif, Maanja, Maren, Daya, Hussein Abu, Moon, James C., Wong, Timothy C., Schelbert, Erik B., Duca, Franz, Kammerlander, Andreas A., Zotter-Tufaro, Caroline, Aschauer, Stefan, Bonderman, Diana, Mascherbauer, Julia, Schwitter, Juerg, Beigelman-Aubry, Catherine, Peguret, Nicolas, Stuber, Matthias, Delacoste, Jean, Belmondo, Bastien, Lovis, Alban, Simons, Julien, Long, Olivier, Grant, Kathleen, Berchier, Gregoire, Rohner, Chantal, Bonanno, Gabriele, Coppo, Simone, Ozsahin, Esat-Mahmut, Qanadli, Salah, Meuli, Reto, Bourhis, Jean, Ide, Seiko, Riesenkampff, Eugenie, Chiasson, David, Dipchand, Anne I., Kantor, Paul F., Chaturvedi, Rajiv R., Yoo, Shi-Joon, Grosse-Wortmann, Lars, Sandrini, C., Aquaro, GD, De Marchi, D, Ait Ali, L, Khraiche, D, Boddaert, N, Bonnet, D, Raimondi, F, Fridman, Yaron, Hackman, Brianne E., Kadakkal, Ajay, Daya, Hussein Abu, Wong, Timothy C., Schelbert, Erik B., Angela, Susana, Alberto, Cipriani, Manuel, De Lazzari, Federico, Marin, Francesca, Prevedello, Bendetta, Giorgi, Giorgio, De Conti, Giuseppe, Tarantini, Luisa, Cacciavillani, Emanuele, Bertaglia, Domenico, Corrado, Sabino, Iliceto, Martina, Perazzolo Marra, Camaioni, Claudia, Morlon, Lucas, Vergé, Marie-Philippe, Jais, Pierre, Roudaut, Raymond, Laurent, Francois, Lafitte, Stéphane, Cochet, Hubert, Réant, Patricia, Bohnen, S., Radunski, U. K., Lund, G. K., Senel, M., Avanesov, M., Tahir, E., Stehning, C., Adam, G., Blankenberg, S., Muellerleile, K., Khanji, Mohammed Y., Balawon, Armida, Boubertakh, Redha, Petersen, Steffen E, Hilbert, Sebastian, Spampinato, Ricardo, Oebel, Sabrina, Hindricks, Gerhard, Bollmann, Andreas, Jahnke, Cosima, Paetsch, Ingo, Goetschalckx, K., Bogaert, J., Desmet, W., Toth, A., Merkely, B., Janssens, S., Claus, P., Calvieri, C., Preda, M. B., Perfetti, A., Valaperta, R., Secchi, F., Fedele, F., Martelli, F., Lombardi, M., Reinstadler, Sebastian J., Eitel, Charlotte, Fuernau, Georg, de Waha, Suzanne, Desch, Steffen, Mende, Meinhard, Metzler, Bernhard, Schuler, Gerhard, Thiele, Holger, Eitel, Ingo, Maestrini, Viviana, Mun, Hong Cheang, Kotwinski, Paul, Rosmini, Stefania, Sanders, Julie, Lloyd, Guy, Dudley, J. Pennell, Kellman, Peter, Hugh, E. Montgomery, Manisty, Charlotte, James, C. Moon, James, S., Waterhouse, D.F., Murphy, T.M., Kenny, C., O'Hanlon, R., Bastiaenen, Rachel, Cox, Andrew T., Wijeyeratne, Yanushi, Colbeck, Nicholas, Pakroo, Nadia, Ahmed, Hammad, Bunce, Nick, Anderson, Lisa, Prasad, Sanjay, Sharma, Sanjay, Behr, Elijah R., Reid, A. B., Miller, C., Jovanovic, A., Woolfson, P., Abidin, N., Schmitt, M., Amadu, A.M., Rodrigues, J.C.L., Dastidar, A. Ghosh, Baritussio, A., Lawton, C., Venuti, G., Meloni, G.B., Conti, M., Bucciarelli-Ducci, C., Pontone, Gianluca, Andreini, Daniele, SoLbiati, Anna, Guglielmo, Marco, Mushtaq, Saima, Baggiano, Andrea, Beltrama, Virginia, Rota, Cristina, Guaricci, Andrea I., Pepi, Mauro, Wang, Yufei, Joannic, David, Juillion, Patrick, Delassus, P., Monnet, Aurélien, Lalande, Alain, Fontaine, Jean-Francois, Zweerink, A, Allaart, CP, Wu, L, Kuijer, JPA, Beek, AM, Croisille, P, Clarysse, P, van Rossum, AC, Nijveldt, R, Bulluck, Heerajnarain, Rosmini, Stefania, Abdel-Gadir, Amna, Bhuva, Anish, Treibel, Thomas A, White, Steven K, Hammond-Haley, Matthew, Sirker, Alex, Herrey, Anna, Manisty, Charlotte, Yellon, Derek M, Kellman, Peter, Moon, James C, Hausenloy, Derek J, Garg, P., Hassell, M, Foley, J., Ripley, D.P., Dobson, L., Swoboda, P.P., Fent, G., Musa, T.A., Erhayiem, B., Haaf, P., Greenwood, J.P., Nijveldt, R., Westenberg, J.J.M., Geest, R.J.V.D., Plein, S., Rodrigues, Jonathan C L, Amadu, Antonio Matteo, Dastidar, Amardeep Ghosh, Szantho, Gergley, Lyen, Stephen, Godsave, Cattleya, Ratcliffe, Laura E K, Burchell, Amy E, Hart, Emma C, Hamilton, Mark C K, Nightingale, Angus K, Paton, Julian F R, Manghat, Nathan E, Bucciarelli-Ducci, Chiara, Hafyane, Tarik, Teixeira, Tiago, Greiser, Andreas, Mongeon, Francois Pierre, Haifa, Almutairi, Mohammed, Khanji, Redha, Boubertakh, Marc, Miquel, Steffen, Petersen, Greulich, S., Kitterer, D., Latus, J., Henes, J., Kurmann, R., Gloekler, S., Wahl, A., Buss, S., Katus, H., Bobbo, M., Lombardi, M., Braun, N., Alscher, M.D., Sechtem, U., Mahrholdt, H., Meloni, A., Neri, M.G., Preziosi, P., Grassedonio, E., Schicchi, N., Keilberg, P., Pulini, S., Facchini, E., Positano, V., Pepe, A., Nazir, Sheraz A., Shetye, Abhishek, Khan, Jamal N., Singh, Anvesha, Kanagala, Prathap, Swarbrick, Daniel, Gulsin, Gaurav, Graham-Brown, Matthew, Squire, Iain, Gershlick, Anthony, McCann, Gerry P., Stefan Biesbroek, P., Amier, Raquel P., Teunissen, Paul F.A., Robbers, Lourens F.H.J., Beek, Aernout M., van Rossum, Albert C., Hofman, Mark B.M., van Royen, Niels, Nijveldt, Robin, Arenja, Nisha, Riffel, Johannes H, Djiokou, Charly Noel, Andre, Florian, Fritz, Thomas, Halder, Manuel, Thomas, Zelniker, Korosoglou, Grigorios, Katus, Hugo A, Buss, Sebastian J, Kammerlander, Andreas A., Schwaiger, Marianne L., Duca, Franz, Aschauer, Stefan, Marzluf, Beatrice A., Zotter-Tufaro, Caroline, Dalos, Daniel, Pfaffenberger, Stefan, Bonderman, Diana, Mascherbauer, Julia, Sayeed, Aatif, Fridman, Yaron, Hackman, Brianne, Kadakkal, Ajay, Maanja, Maren, Daya, Hussein Abu, Wong, Timothy C., Schelbert, Erik B., Ricci, F., Barison, A., Todiere, G., Gaeta, R., Galllina, S., Emdin, M., De Caterina, R., Aquaro, G.D., Bernhardt, Peter, Buckert, Dominik, Dyckmanns, Nils, Rottbauer, Wolfgang, Meierhofer, Christian, Kühn, Andreas, Shehu, Nerejda, Müller, Jan, Stern, Heiko, Ewert, Peter, Fratz, Sohrab, Vogt, Manfred, Devos, Daniel G.H., De Groote, Katya, Babin, Danilo, Demulier, Laurent, Taeymans, Yves, Westenberg, Jos J., Van Bortel, Luc, Segers, Patrick, Achten, Eric, De Schepper, Jean, Rietzschel, Ernst, Ruecker, Beate, Geiger, Julia, Makki, Malek, Burkhardt, Barbara, Kellenberger, Christian J., Buechel, Emanuela R. Valsangiacomo, Burkhardt, B.E.U., Kellenberger, C.J., Geiger, J., Ruecker, B., Buechel, E.R. Valsangiacomo, Kamphuis, Vivian P., Elbaz, Mohammed S.M., Kroft, Lucia J.M., van der Geest, Rob J., de Roos, Albert, Blom, Nico A., Westenberg, Jos J.M., Roest, Arno A.W., De Lazzari, Manuel, Cipriani, Alberto, Susana, Angela, Rizzo, Stefania, Giorgi, Benedetta, Carmelo, Lacognata, Bertaglia, Emanuele, Bauce, Barbara, Corrado, Domenico, Thiene, Gaetano, Marra, Martina Perazzolo, Basso, Cristina, Iliceto, Sabino, Nederend, I., Roest, A.A.W., van den Boogaard, P.J., ten Harkel, A.D.J., de Geus, J.C.N., Kroft, L.J.M., de Roos, A., Westenberg, J.J.M., Dux-Santoy, Lydia, Kale, Raquel, Teixido-Tura, Gisela, Maldonado, Giuliana, Huguet, Marina, Garcia-Dorado, David, Evangelista, Artur, Rodriguez-Palomares, Jose, Cavalcante, João L., Rijal, Shasank, Schindler, John T., Gleason, Thomas G., Lee, Joon S., Schelbert, Erik B., Rosmini, Stefania, Bulluck, Heerajnarain, Treibel, Thomas A, Bhuva, Anish, Abdel-Gadir, Amna, Culotta, Veronica, Merghani, Ahmed, Maestrini, Viviana, Herrey, Anna S, Kellman, Peter, Manisty, Charlotte, Moon, James C, Liu, B., Hayer, M.K., Baig, S., Shah, T., Rooney, S.J., Edwards, N.C., Steeds, R.P., Fent, G.J., Garg, P., Swoboda, P., Dobson, L.E., Musa, T.A., Foley, J.F., Haaf, P., Greenwood, J.P., Plein, S., Claessen, G., Schnell, F., Bogaert, J., Dymarkowski, S., Pattyn, N., Claus, P., Van Cleemput, J., Gerche, A. La, Heidbuchel, H., Behar, Jonathan, Toth, Daniel, Reiml, Sabrina, Panayiotou, Maria, Claridge, Simon, Jackson, Tom, Sohal, Manav, Webb, Jessica, O'Neill, Mark, Brost, Alexander, Mountney, Peter, Razavi, Reza, Rhode, Kawal, Rinaldi, Christopher Aldo, Oebel, S., Arya, A., Hilbert, S., Bollmann, A., Hindricks, G., Jahnke, C., Paetsch, I., Dinov, B., Baritussio, A., Perazzolo Marra, M., Ghosh Dastidar, A., Rodrigues, J., Zorzi, A., Susana, A., Scatteia, A., De Garate, E., Mattesi, G., Strange, J., Corrado, D., Bucciarelli-Ducci, C., Ranjit Arnold, J., Jerosch-Herold, Michael, Karamitsos, Theodoros D., Francis, Jane M., Bhamra-Ariza, Paul, Sarwar, Rizwan, Choudhury, Robin, Selvanayagam, Joseph B., Neubauer, Stefan, Tayal, Upasana, Scott, Andrew D, Wage, Rick, Ferreira, Pedro, Pennell, Dudley, Zhong, Xiaodong, Epstein, Fred, Firmin, David, Prasad, Sanjay, Kallifatidis, Alexandros, Prousalis, Anastasios, Mouratoglou, Sophia-Anastasia, Giannakoulas, George, Deligianni, Xenia, Bakaloudis, Michail, Magganaris, Nikolaos, Sianos, George, Karvounis, Haralampos, Santini, Francesco, Garg, P., Aziz, R., Foley, J.R.J., Fent, G., Musa, T.A., Haaf, P., Dobson, L., Swoboda, P.P., Greenwood, J.P., Plein, S., Geest, R.J.V.D., Westenberg, J.J.M., Beitzke, D., Rasul, S., Wadsak, W., Mitterhauser, M., Nolz, R., Stelzmueller, M., Loewe, C., Hacker, M., Funk, Stephanie, Kermer, Josephine, Dogangüzel, Serkan, von Knobelsdorff-Brenkenhoff, Florian, Schulz-Menger, Jeanette, Kolker, Shimon, Weisz, Giora, Bogot, Naama, Halpern, Irit Hadas, Wolak, Arik, Rutz, Tobias, Ginami, Giulia, Piccini, Davide, Coppo, Simone, Vincenti, Gabriella, Stuber, Matthias, Schwitter, Jürg, Safdar, Komal S, Gao, Xuexin, Ambach, Stephanie, Taylor, Michal D, Moore, Ryan, Taylor, Robin J, Toro-Salazar, Olga, Jeffries, John L, Bartone, Cheryl, Raman, Subha V, Mazur, Wojciech, Valente, F., Rodriguez-Palomares, J.F., Gutierrez, L., Pineda, V., Agliano, B., Galian, L., Teixido, G., Gonzalez-Alujas, M.T., Evangelista, A., Garcia-Dorado, D., Murdoch, R., Gandy, S., Nicholas, R., Houston, G., Martin, P., Muir, J., Matthew, S., Ramkumar, P. Guntur-, Cavin, I., Macaione, F., Barison, A., Pescetelli, I., Pali, F., Pizzino, F., Terrizzi, A., Di Lisi, D., Novo, G., Todiere, G., Assennato, P., Novo, S., Aquaro, G.D., Dastidar, Amardeep Ghosh, McAlindon, Elisa, Rodrigues, Jonathan, Baritussio, Anna, Scatteia, Alessandra, De Garate, Estefania, Benny Lawton, Chris, Erdei, Tamas, Szantho, Gergely, Hamilton, Mark, Bucciarelli-Ducci, Chiara, Pontone, Gianluca, Andreini, Daniele, Rota, Cristina, Guglielmo, Marco, Mushtaq, Saima, Baggiano, Andrea, Beltrama, Virginia, Solbiati, Anna, Guaricci, Andrea I., Pepi, Mauro, Grigoratos, Chrysanthos, Bratis, Konstantinos, Henningson, Markus, Dell'Omodarme, Matteo, Puntmann, Valentina O., Nagel, Eike, Meloni, Antonella, Giunta, Nicola, Giuliano, Pietro, Neri, Maria Giovanna, Restaino, Gennaro, Renne, Stefania, Quota, Alessandra, Positano, Vincenzo, De Marchi, Daniele, Pepe, Alessia, Pedrotti, Patrizia, Campadello, Paola, Masciocco, Gabriella, Facchetti, Rita, Milazzo, Angela, Quattrocchi, Giuseppina, Giannattasio, Cristina, Frigerio, Maria, Roghi, Alberto, Rimoldi, Ornella, De Garate, Estefania, Ghosh Dastidar, Amardeep, Baritussio, Anna, Scatteia, Alessandra, Amadu, Antonio, Venuti, Giuseppe, Rodrigues, Jonathan C., Bucciarelli-Ducci, Chiara, Careri, Giulia, Castelvecchio, Serenella, Camporeale, Antonia, Secchi, Francesco, Menicanti, Lorenzo, Lombardi, Massimo, Kockova, R., Sedlacek, K., Wichterle, D., Sikula, V., Tintera, J., Sukupova, L., Kautznerova, D., Segetova, M., Praveckova, A., Langova, R., Kryze, L., El-Husseini, W., Kautzner, J., Oebel, S., Dinov, B., Arya, A., Hilbert, S., Sommer, P., Bollmann, A., Hindricks, G., Paetsch, I., Jahnke, C., Nazir, Sheraz A., Greenwood, John P., Shetye, Abhishek, Khan, Jamal N., Singh, Anvesha, Kanagala, Prathap, Swarbrick, Daniel, Gulsin, Gaurav, Graham-Brown, Matthew, Gershlick, Anthony, McCann, Gerry P., Grigoratos, Chrysanthos, Liga, Riccardo, Bennatti, Elena, Barison, Andrea, Todiere, Giancarlo, Aquaro, Giovanni Donato, Dell'Omodarme, Matteo, Lombardi, Massimo, Emdin, Michele, Masci, Pier Giorgio, Barison, A, Ortalda, A, Todiere, G, Grigoratos, C, Vergaro, G, Mirizzi, G, Martini, N, De Marchi, D, Keilberg, P, Passino, C, Aquaro, GD, Emdin, M, Swoboda, Peter P, McDiarmid, Adam K, Erhayiem, Bara, Fent, Graham J, Dobson, Laura E, Garg, Pankaj, Musa, Tarique A, Foley, James R, Page, Stephen P, Greenwood, John P, Plein, Sven, Bulluck, Heerajnarain, Rosmini, Stefania, Abdel-Gadir, Amna, Bhuva, Anish, Treibel, Thomas A, White, Steven K, Fontana, Marianna, Ramlall, Manish, Hamarneh, Ashraf, Sirker, Alex, Herrey, Anna, Manisty, Charlotte, Yellon, Derek M, Kellman, Peter, Moon, James C, Hausenloy, Derek J, Broncano, J., Luna, A., Noguerol, T. Martin –, Caro, P., Toro-Cebada, R., Gonzalez, J. Sanchez –, Desroche, L.M., Milleron, O., Safar, B., Lavie-Badie, Y., Millischer, D., Abtan, J., Jondeau, G., Bermejo, Zorba Blázquez, Cuesta, Emilio, Rosillo, Sandra O., Guzmán, Gabriela, Pinilla, Inmaculada, González, Óscar, Caro, Juan, Ponz, Inés, López, Teresa, Refoyo, Elena, Kozor, Rebecca, Nordin, Sabrina, Treibel, Thomas A, Rosmini, Stefania, Castelleti, Silvia, Fontana, Marianna, Captur, Gabriella, Steeds, Rick, Baig, Shanat, Manisty, Charlotte, Grieve, Stuart M, Figtree, Gemma A, Moon, James C, Dastidar, Amardeep Ghosh, Rodrigues, Jonathan, De Garate, Estefania, Singhal, Priyanka, McAlindon, Elisa, Baritussio, Anna, Scatteia, Alessandra, Erdei, Tamas, Strange, Julian, Nightingale, Angus, Baumbach, Andreas, Johnson, Tom, Delgado, Victoria, Bucciarelli-Ducci, Chiara, Lapinskas, Tomas, Bucius, Paulius, Fedaravicius, Augustinas P., Urbonaite, Laura, Stabinskaite, Agnieta, Zaliunas, Remigijus, Elisabetta, Chiodi, Teresa, Cannizzaro Maria, Daniele, De Falco Alfano, Righi, Riccardo, Zerbini, Michela, Vincenzo, Positano, Cittanti, Corrado, Giganti, Melchiore, Giorgio, Benea, Grigoratos, Chrysanthos, Genovesi, Dario, Giorgetti, Assuero, Chiappino, Sara, Barison, Andrea, Vergaro, Giuseppe, Todiere, Giancarlo, Emdin, Michele, Marzullo, Paolo, Aquaro, Giovanni Donato, Ladeiras-Lopes, Ricardo, Turin-Moreira, Henrique, Bettencourt, Nuno, Fontes-Carvalho, Ricardo, Sampaio, Francisco, Ambale-Venkatesh, Bharath, Wu, Colin, Liu, Kiang, Bertoni, Alain, Ouyang, Pamela, Bluemke, David, Lima, João, Fent, GJ., Garg, P., Dobson, LE., Musa, TA., Foley, JF., Haaf, P., Greenwood, JP., Plein, S., Swoboda, PP., Abdul Rahman, E., Ismail, JR., Najme Khir, R., Lim, CW., Chua, N., Ibrahim, ZO., Zainal Abidin, HA., Mohd Arshad, MK., Kasim, SS., Rodrigues, Jonathan, Rooms, Ben, Hyde, Katie, Rohan, Stephen, Dastidar, Amardeep Ghosh, Hamilton, Mark, Bucciarelli-Ducci, Chiara, Nightingale, Angus, Paton, Julian, Manghat, Nathan, MacIver, David, Gibelli, Giuseppe, Demolli, Walter, Russo, Alessandra, Minoia, Chiara, Biasi, Salvatore, Mkrtchyan, Naira, Eltschkner, Christin, Christian, Meierhofer, Ewert, Peter, Martinoff, Stefan, Stern, Heiko, Fratz, Sohrab, Valinoti, Maddalena, Fabbri, Claudio, Mantovan, Roberto, Severi, Stefano, Corsi, Cristiana, Nyktari, E., Vassiliou, V., Arzanauskaite, M., Izgi, C., Lam, W., Prasad, S., Reindl, Martin, Reinstadler, Sebastian Johannes, Feistritzer, Hans-Josef, Klug, Gert, Mair, Johannes, Mayr, Agnes, Jaschke, Werner, Franz, Wolfgang-Michael, Metzler, Bernhard, Arnhold, K., Muehlberg, F., Fritschi, S., Funk, S., Prothmann, M., von Knobelsdorff-Brenkenhoff, F., Schulz-Menger, J., Lakhani, Zeeshan S. A., Mohan, B., karthik, G A., Raj, Vimal, Weir-McCall, Jonathan, Cassidy, Deirdre B, Belch, Jill JF, Gandy, Stephen J, Houston, Graeme, Lambert, Matthew A, Littleford, Roberta, Rowland, Janice, Struthers, Allan D, Khan, Faisel, Camaioni, Claudia, Salel, Marjorie, Hennig, Alexia, Corneloup, Olivier, Montaudon, Michel, Laurent, Francois, Cochet, Hubert, Kan, Rachel, Erhayiem, Bara, McDiarmid, Adam K., Garg, Pankaj, Dobson, Laura E., Musa, Tarique A., Ripley, David, Ajjan, Ramzi, Greenwood, John P., Plein, Sven, Swoboda, Peter P., Reinstadler, Sebastian J., Fuernau, Georg, Eitel, Charlotte, de Waha, Suzanne, Desch, Steffen, Metzler, Bernhard, Schuler, Gerhard, Thiele, Holger, Eitel, Ingo, Feistritzer, Hans-Josef, Reinstadler, Sebastian Johannes, Klug, Gert, Reindl, Martin, Mair, Johannes, Mayr, Agnes, Franz, Wolfgang-Michael, Metzler, Bernhard, Feistritzer, Hans-Josef, Klug, Gert, Reinstadler, Sebastian Johannes, Reindl, Martin, Mayr, Agnes, Franz, Wolfgang-Michael, Metzler, Bernhard, Festa, P., Cadoni, A., D'andrea, C., Costa, S., Keilberg, P., Lunardini, A., Ali, L. Ait, Ali, L. Ait, Aquaro, GD., Peritore, G., Ricci, F., De Marchi, D., Passino, C., Festa, P., Martínez, A. Tercero, Cuartero, J. Navarro, Soriano, J.G. Córdoba, Núñez, S. Calero, de Galarreta, T. Cros Ruiz, García, M. Villar, Page, J.C. Gallego, López, J.C. García, Ruiz, M. 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- Abstract
Objectives: Myocardial fibrosis in noninfarcted myocardium is emerging as a principal phenotype of vulnerability to adverse events such as mortality and hospitalization for heart failure (HHF), but its optimal noninvasive measurement remains uncertain despite consistently robust histologic validation data for extracellular volume fraction (ECV). We therefore compared ECV, native T1, post contrast T1, the gadolinium contrast partition coefficient (lambda), and the presence of nonischemic scar in their associations with mortality and HHF outcomes. Method: To quantify of myocardial fibrosis, we performed T1 mapping (MOLLI) in basal and mid short axis slices with cardiovascular magnetic resonance (CMR) before contrast and 12-30 minutes post contrast bolus in 1185 consecutive patients without amyloidosis, hypertrophic or stress cardiomyopathy. We assessed associations with outcomes using Kaplan-Meier plots and chi square values from univariable Cox regression models. All standard T1 mapping parameters were obtained: native and post contrast myocardial T1, the partition coefficient lambda, and ECV. ECV = (1-hematocrit) · [ΔR1myocardium]/[ΔR1bloodpool], where R1 = 1/T1 Late gadolinium enhancement imaging with phase sensitive reconstruction identified nonischemic scar. Results: Over a median of 1.7 years, 111 individuals experienced events after CMR: 55 HHF events and 74 deaths. ECV yielded better separation of Kaplan-Meier curves in a dose dependent fashion (Figure) and also stronger associations with the combined endpoint of death or HHF. The ECV chi square (77.3, p < 0.001) was at least twice as large as the Native T1 chi square (37.5, p < 0.001), the lambda chi square (34.8, p < 0.001) and nonischemic scar (chi square = 20.5, p<0.001). Post-contrast T1 was not associated with outcomes, even when adjusting further for time after contrast bolus, renal function, and patient weight (chi square <3, p >0.10). Conclusion: Analogous to histologic previously published validation data, quantitative ECV myocardial fibrosis measures associated with outcomes far stronger than other surrogate measures outcome measures such as native T1, post contrast T1 and nonischemic scar on LGE images. These data suggest that ECV is the noninvasive metric of choice to measure myocardial fibrosis. Figure. Kaplan-Meier Plots for T1 mapping parameters.
- Published
- 2016
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