The Experts below are selected from a list of 12381600 Experts worldwide ranked by ideXlab platform
Thomas J Vogl - One of the best experts on this subject based on the ideXlab platform.
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value of a noise optimized virtual monoenergetic reconstruction technique in dual energy ct for planning of transcatheter aortic valve replacement
European Radiology, 2017Co-Authors: Simon S Martin, Moritz H Albrecht, Julian L Wichmann, K Husers, Janerik Scholtz, Christian Booz, Boris Bodelle, Ralf W Bauer, Sarah C Metzger, Thomas J VoglAbstract:Objectives To evaluate objective and subjective image quality of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique in dual-energy computed tomography (DECT) angiography prior to transcatheter aortic valve replacement (TAVR).
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value of a noise optimized virtual monoenergetic reconstruction technique in dual energy ct for planning of transcatheter aortic valve replacement
European Radiology, 2017Co-Authors: Simon S Martin, Moritz H Albrecht, Julian L Wichmann, K Husers, Janerik Scholtz, Christian Booz, Boris Bodelle, Ralf W Bauer, Sarah C Metzger, Thomas J VoglAbstract:Objectives To evaluate objective and subjective image quality of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique in dual-energy computed tomography (DECT) angiography prior to transcatheter aortic valve replacement (TAVR).
Luis Nombelafranco - One of the best experts on this subject based on the ideXlab platform.
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prognostic value of exercise capacity as evaluated by the 6 minute walk test in patients undergoing transcatheter aortic valve implantation
Journal of the American College of Cardiology, 2013Co-Authors: Luis Nombelafranco, Marina Urena, Robert Delarochelliere, Daniel Doyle, Henrique B Ribeiro, Melanie Cote, Philippe Pibarot, Hugo Delarochelliere, Louis Laflamme, Paul PoirierAbstract:To the Editor: Determination of individual patient risk for early-term and midterm outcomes following transcatheter aortic valve implantation (TAVI) has predominantly centered on baseline comorbidities, cardiac surgery risk algorithms, and peri-procedural complications. However, there is
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prognostic value of exercise capacity as evaluated by the 6 minute walk test in patients undergoing transcatheter aortic valve implantation
Journal of the American College of Cardiology, 2013Co-Authors: Michael Mok, Luis Nombelafranco, Marina Urena, Robert Delarochelliere, Daniel Doyle, Henrique B Ribeiro, Melanie Cote, Philippe Pibarot, Hugo Delarochelliere, Louis LaflammeAbstract:To the Editor: Determination of individual patient risk for early-term and midterm outcomes following transcatheter aortic valve implantation (TAVI) has predominantly centered on baseline comorbidities, cardiac surgery risk algorithms, and peri-procedural complications. However, there is
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timing predictive factors and prognostic value of cerebrovascular events in a large cohort of patients undergoing transcatheter aortic valve implantation
Circulation, 2012Co-Authors: Luis Nombelafranco, John G Webb, Peter De Jaegere, Stefan Toggweiler, Rutgerjan Nuis, Antonio Dager, Ignacio J Amatsantos, Anson Cheung, Ronald K Binder, Robert M A Van Der BoonAbstract:Background—The objective of this study was to evaluate the timing, predictive factors, and prognostic value of cerebrovascular events (CVEs) after transcatheter aortic valve implantation. Methods a...
Simon S Martin - One of the best experts on this subject based on the ideXlab platform.
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value of a noise optimized virtual monoenergetic reconstruction technique in dual energy ct for planning of transcatheter aortic valve replacement
European Radiology, 2017Co-Authors: Simon S Martin, Moritz H Albrecht, Julian L Wichmann, K Husers, Janerik Scholtz, Christian Booz, Boris Bodelle, Ralf W Bauer, Sarah C Metzger, Thomas J VoglAbstract:Objectives To evaluate objective and subjective image quality of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique in dual-energy computed tomography (DECT) angiography prior to transcatheter aortic valve replacement (TAVR).
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value of a noise optimized virtual monoenergetic reconstruction technique in dual energy ct for planning of transcatheter aortic valve replacement
European Radiology, 2017Co-Authors: Simon S Martin, Moritz H Albrecht, Julian L Wichmann, K Husers, Janerik Scholtz, Christian Booz, Boris Bodelle, Ralf W Bauer, Sarah C Metzger, Thomas J VoglAbstract:Objectives To evaluate objective and subjective image quality of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique in dual-energy computed tomography (DECT) angiography prior to transcatheter aortic valve replacement (TAVR).
Harriet C Thoeny - One of the best experts on this subject based on the ideXlab platform.
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diffusion weighted imaging of the parotid gland influence of the choice of b values on the apparent diffusion coefficient value
Journal of Magnetic Resonance Imaging, 2004Co-Authors: Harriet C Thoeny, Frederik De Keyzer, Chris Boesch, Robert HermansAbstract:PURPOSE: To determine how the ADC value of parotid glands is influenced by the choice of b-values. MATERIALS AND METHODS: In eight healthy volunteers, diffusion-weighted echo-planar imaging (DW-EPI) was performed on a 1.5 T system, with b-values (in seconds/mm2) of 0, 50, 100, 150, 200, 250, 300, 500, 750, and 1000. ADC values were calculated by two alternative methods (exponential vs. logarithmic fit) from five different sets of b-values: (A) all b-values; (B) b=0, 50, and 100; (C) b=0 and 750; (D) b=0, 500, and 1000; and (E) b=500, 750, and 1000. RESULTS: The mean ADC values for the different settings were (in 10(-3) mm2/second, exponential fit): (A) 0.732+/-0.019, (B) 2.074+/-0.084, (C) 0.947+/-0.020, (D) 0.890+/-0.023, and (E) 0.581+/-0.021. ADC values were significantly (P <0.001) different for all pairwise comparisons of settings (A-E) of b-values, except for A vs. D (P=0.172) and C vs. D (P=0.380). The ADC(B) was significantly higher than ADC(C) or ADC(D), which was significantly higher than ADC(E). ADC values from exponential vs. logarithmic fit (P=0.542), as well as left vs. right parotid gland (P=0.962), were indistinguishable. CONCLUSION: The ADC values calculated from low b-value settings were significantly higher than those calculated from high b-value settings. These results suggest that not only true diffusion but also perfusion and saliva flow may contribute to the ADC.
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diffusion weighted imaging of the parotid gland influence of the choice of b values on the apparent diffusion coefficient value
Journal of Magnetic Resonance Imaging, 2004Co-Authors: Harriet C Thoeny, Frederik De Keyzer, Chris Boesch, Robert HermansAbstract:Purpose To determine how the ADC value of parotid glands is influenced by the choice of b-values. Materials and Methods In eight healthy volunteers, diffusion-weighted echo-planar imaging (DW-EPI) was performed on a 1.5 T system, with b-values (in seconds/mm2) of 0, 50, 100, 150, 200, 250, 300, 500, 750, and 1000. ADC values were calculated by two alternative methods (exponential vs. logarithmic fit) from five different sets of b-values: (A) all b-values; (B) b = 0, 50, and 100; (C) b = 0 and 750; (D) b = 0, 500, and 1000; and (E) b = 500, 750, and 1000. Results The mean ADC values for the different settings were (in 10−3 mm2/second, exponential fit): (A) 0.732 ± 0.019, (B) 2.074 ± 0.084, (C) 0.947 ± 0.020, (D) 0.890 ± 0.023, and (E) 0.581 ± 0.021. ADC values were significantly (P < 0.001) different for all pairwise comparisons of settings (A–E) of b-values, except for A vs. D (P = 0.172) and C vs. D (P = 0.380). The ADC(B) was significantly higher than ADC(C) or ADC(D), which was significantly higher than ADC(E). ADC values from exponential vs. logarithmic fit (P = 0.542), as well as left vs. right parotid gland (P = 0.962), were indistinguishable. Conclusion The ADC values calculated from low b-value settings were significantly higher than those calculated from high b-value settings. These results suggest that not only true diffusion but also perfusion and saliva flow may contribute to the ADC. J. Magn. Reson. Imaging 2004;20:786–790. © 2004 Wiley-Liss, Inc.
Louis Laflamme - One of the best experts on this subject based on the ideXlab platform.
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prognostic value of exercise capacity as evaluated by the 6 minute walk test in patients undergoing transcatheter aortic valve implantation
Journal of the American College of Cardiology, 2013Co-Authors: Luis Nombelafranco, Marina Urena, Robert Delarochelliere, Daniel Doyle, Henrique B Ribeiro, Melanie Cote, Philippe Pibarot, Hugo Delarochelliere, Louis Laflamme, Paul PoirierAbstract:To the Editor: Determination of individual patient risk for early-term and midterm outcomes following transcatheter aortic valve implantation (TAVI) has predominantly centered on baseline comorbidities, cardiac surgery risk algorithms, and peri-procedural complications. However, there is
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prognostic value of exercise capacity as evaluated by the 6 minute walk test in patients undergoing transcatheter aortic valve implantation
Journal of the American College of Cardiology, 2013Co-Authors: Michael Mok, Luis Nombelafranco, Marina Urena, Robert Delarochelliere, Daniel Doyle, Henrique B Ribeiro, Melanie Cote, Philippe Pibarot, Hugo Delarochelliere, Louis LaflammeAbstract:To the Editor: Determination of individual patient risk for early-term and midterm outcomes following transcatheter aortic valve implantation (TAVI) has predominantly centered on baseline comorbidities, cardiac surgery risk algorithms, and peri-procedural complications. However, there is