Cardiac MR Elastography: Comparison with left ventricular pressure measurement

Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasi...
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Autor*in:	Elgeti, Thomas [verfasserIn] Laule, Michael Kaufels, Nikola Schnorr, Jörg Hamm, Bernd Samani, Abbas Braun, Jürgen Sack, Ingolf

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2009

Schlagwörter:	Wave Amplitude Left Ventricular Pressure Magnetic Resonance Elastography Shear Wave Linear Elastic Model

Anmerkung:	© Elgeti et al; licensee BioMed Central Ltd. 2009

Übergeordnetes Werk:	Enthalten in: Journal of cardiovascular magnetic resonance - London : BioMed Central, 1999, 11(2009), 1 vom: 09. Nov.
Übergeordnetes Werk:	volume:11 ; year:2009 ; number:1 ; day:09 ; month:11

Links:	Volltext

DOI / URN:	10.1186/1532-429X-11-44

Katalog-ID:	SPR028981707

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245	1	0	\|a Cardiac MR Elastography: Comparison with left ventricular pressure measurement
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520			\|a Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart.
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700	1		\|a Schnorr, Jörg \|4 aut
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700	1		\|a Samani, Abbas \|4 aut
700	1		\|a Braun, Jürgen \|4 aut
700	1		\|a Sack, Ingolf \|4 aut
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matchkey_str	article:1532429X:2009----::adameatgahcmaiowtlfvnrclr
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publishDate	2009
allfields	10.1186/1532-429X-11-44 doi (DE-627)SPR028981707 (SPR)1532-429X-11-44-e DE-627 ger DE-627 rakwb eng Elgeti, Thomas verfasserin aut Cardiac MR Elastography: Comparison with left ventricular pressure measurement 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Elgeti et al; licensee BioMed Central Ltd. 2009 Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213 Laule, Michael aut Kaufels, Nikola aut Schnorr, Jörg aut Hamm, Bernd aut Samani, Abbas aut Braun, Jürgen aut Sack, Ingolf aut Enthalten in Journal of cardiovascular magnetic resonance London : BioMed Central, 1999 11(2009), 1 vom: 09. Nov. (DE-627)638411602 (DE-600)2578881-4 1532-429X nnns volume:11 year:2009 number:1 day:09 month:11 https://dx.doi.org/10.1186/1532-429X-11-44 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2009 1 09 11
spelling	10.1186/1532-429X-11-44 doi (DE-627)SPR028981707 (SPR)1532-429X-11-44-e DE-627 ger DE-627 rakwb eng Elgeti, Thomas verfasserin aut Cardiac MR Elastography: Comparison with left ventricular pressure measurement 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Elgeti et al; licensee BioMed Central Ltd. 2009 Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213 Laule, Michael aut Kaufels, Nikola aut Schnorr, Jörg aut Hamm, Bernd aut Samani, Abbas aut Braun, Jürgen aut Sack, Ingolf aut Enthalten in Journal of cardiovascular magnetic resonance London : BioMed Central, 1999 11(2009), 1 vom: 09. Nov. (DE-627)638411602 (DE-600)2578881-4 1532-429X nnns volume:11 year:2009 number:1 day:09 month:11 https://dx.doi.org/10.1186/1532-429X-11-44 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2009 1 09 11
allfields_unstemmed	10.1186/1532-429X-11-44 doi (DE-627)SPR028981707 (SPR)1532-429X-11-44-e DE-627 ger DE-627 rakwb eng Elgeti, Thomas verfasserin aut Cardiac MR Elastography: Comparison with left ventricular pressure measurement 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Elgeti et al; licensee BioMed Central Ltd. 2009 Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213 Laule, Michael aut Kaufels, Nikola aut Schnorr, Jörg aut Hamm, Bernd aut Samani, Abbas aut Braun, Jürgen aut Sack, Ingolf aut Enthalten in Journal of cardiovascular magnetic resonance London : BioMed Central, 1999 11(2009), 1 vom: 09. Nov. (DE-627)638411602 (DE-600)2578881-4 1532-429X nnns volume:11 year:2009 number:1 day:09 month:11 https://dx.doi.org/10.1186/1532-429X-11-44 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2009 1 09 11
allfieldsGer	10.1186/1532-429X-11-44 doi (DE-627)SPR028981707 (SPR)1532-429X-11-44-e DE-627 ger DE-627 rakwb eng Elgeti, Thomas verfasserin aut Cardiac MR Elastography: Comparison with left ventricular pressure measurement 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Elgeti et al; licensee BioMed Central Ltd. 2009 Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213 Laule, Michael aut Kaufels, Nikola aut Schnorr, Jörg aut Hamm, Bernd aut Samani, Abbas aut Braun, Jürgen aut Sack, Ingolf aut Enthalten in Journal of cardiovascular magnetic resonance London : BioMed Central, 1999 11(2009), 1 vom: 09. Nov. (DE-627)638411602 (DE-600)2578881-4 1532-429X nnns volume:11 year:2009 number:1 day:09 month:11 https://dx.doi.org/10.1186/1532-429X-11-44 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2009 1 09 11
allfieldsSound	10.1186/1532-429X-11-44 doi (DE-627)SPR028981707 (SPR)1532-429X-11-44-e DE-627 ger DE-627 rakwb eng Elgeti, Thomas verfasserin aut Cardiac MR Elastography: Comparison with left ventricular pressure measurement 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Elgeti et al; licensee BioMed Central Ltd. 2009 Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213 Laule, Michael aut Kaufels, Nikola aut Schnorr, Jörg aut Hamm, Bernd aut Samani, Abbas aut Braun, Jürgen aut Sack, Ingolf aut Enthalten in Journal of cardiovascular magnetic resonance London : BioMed Central, 1999 11(2009), 1 vom: 09. Nov. (DE-627)638411602 (DE-600)2578881-4 1532-429X nnns volume:11 year:2009 number:1 day:09 month:11 https://dx.doi.org/10.1186/1532-429X-11-44 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2009 1 09 11
language	English
source	Enthalten in Journal of cardiovascular magnetic resonance 11(2009), 1 vom: 09. Nov. volume:11 year:2009 number:1 day:09 month:11
sourceStr	Enthalten in Journal of cardiovascular magnetic resonance 11(2009), 1 vom: 09. Nov. volume:11 year:2009 number:1 day:09 month:11
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Wave Amplitude Left Ventricular Pressure Magnetic Resonance Elastography Shear Wave Linear Elastic Model
isfreeaccess_bool	true
container_title	Journal of cardiovascular magnetic resonance
authorswithroles_txt_mv	Elgeti, Thomas @@aut@@ Laule, Michael @@aut@@ Kaufels, Nikola @@aut@@ Schnorr, Jörg @@aut@@ Hamm, Bernd @@aut@@ Samani, Abbas @@aut@@ Braun, Jürgen @@aut@@ Sack, Ingolf @@aut@@
publishDateDaySort_date	2009-11-09T00:00:00Z
hierarchy_top_id	638411602
id	SPR028981707
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR028981707</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519222353.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201007s2009 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1186/1532-429X-11-44</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR028981707</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)1532-429X-11-44-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Elgeti, Thomas</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Cardiac MR Elastography: Comparison with left ventricular pressure measurement</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2009</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Elgeti et al; licensee BioMed Central Ltd. 2009</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Wave Amplitude</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Left Ventricular Pressure</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Magnetic Resonance Elastography</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Shear Wave</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Linear Elastic Model</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Laule, Michael</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kaufels, Nikola</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Schnorr, Jörg</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hamm, Bernd</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Samani, Abbas</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Braun, Jürgen</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sack, Ingolf</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of cardiovascular magnetic resonance</subfield><subfield code="d">London : BioMed Central, 1999</subfield><subfield code="g">11(2009), 1 vom: 09. 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author	Elgeti, Thomas
spellingShingle	Elgeti, Thomas misc Wave Amplitude misc Left Ventricular Pressure misc Magnetic Resonance Elastography misc Shear Wave misc Linear Elastic Model Cardiac MR Elastography: Comparison with left ventricular pressure measurement
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topic_title	Cardiac MR Elastography: Comparison with left ventricular pressure measurement Wave Amplitude (dpeaa)DE-He213 Left Ventricular Pressure (dpeaa)DE-He213 Magnetic Resonance Elastography (dpeaa)DE-He213 Shear Wave (dpeaa)DE-He213 Linear Elastic Model (dpeaa)DE-He213
topic	misc Wave Amplitude misc Left Ventricular Pressure misc Magnetic Resonance Elastography misc Shear Wave misc Linear Elastic Model
topic_unstemmed	misc Wave Amplitude misc Left Ventricular Pressure misc Magnetic Resonance Elastography misc Shear Wave misc Linear Elastic Model
topic_browse	misc Wave Amplitude misc Left Ventricular Pressure misc Magnetic Resonance Elastography misc Shear Wave misc Linear Elastic Model
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title	Cardiac MR Elastography: Comparison with left ventricular pressure measurement
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title_full	Cardiac MR Elastography: Comparison with left ventricular pressure measurement
author_sort	Elgeti, Thomas
journal	Journal of cardiovascular magnetic resonance
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author_browse	Elgeti, Thomas Laule, Michael Kaufels, Nikola Schnorr, Jörg Hamm, Bernd Samani, Abbas Braun, Jürgen Sack, Ingolf
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author-letter	Elgeti, Thomas
doi_str_mv	10.1186/1532-429X-11-44
title_sort	cardiac mr elastography: comparison with left ventricular pressure measurement
title_auth	Cardiac MR Elastography: Comparison with left ventricular pressure measurement
abstract	Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. © Elgeti et al; licensee BioMed Central Ltd. 2009
abstractGer	Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. © Elgeti et al; licensee BioMed Central Ltd. 2009
abstract_unstemmed	Purpose of study To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model. Methods Three pigs of different cardiac physiology (weight, 25 to 53 kg; heart rate, 61 to 93 bpm; left ventricular [LV] end-diastolic volume, 35 to 70 ml) were subjected to invasive LV pressure measurement by catheter and noninvasive cardiac MRE. Cardiac MRE was performed in a short-axis view of the heart and applying a 48.3-Hz shear-wave stimulus. Relative changes in LV-shear wave amplitudes during the cardiac cycle were analyzed. Correlation coefficients between wave amplitudes and LV pressure as well as between wave amplitudes and LV diameter were determined. Results A relationship between MRE and LV pressure was observed in all three animals ($ R^{2} $ ≥ 0.76). No correlation was observed between MRE and LV diameter ($ R^{2} $ ≤ 0.15). Instead, shear wave amplitudes decreased 102 ± 58 ms earlier than LV diameters at systole and amplitudes increased 175 ± 40 ms before LV dilatation at diastole. Amplitude ratios between diastole and systole ranged from 2.0 to 2.8, corresponding to LV pressure differences of 60 to 73 mmHg. Conclusion Externally induced shear waves provide information reflecting intraventricular pressure changes which, if substantiated in further experiments, has potential to make cardiac MRE a unique noninvasive imaging modality for measuring pressure-volume function of the heart. © Elgeti et al; licensee BioMed Central Ltd. 2009
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title_short	Cardiac MR Elastography: Comparison with left ventricular pressure measurement
url	https://dx.doi.org/10.1186/1532-429X-11-44
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author2	Laule, Michael Kaufels, Nikola Schnorr, Jörg Hamm, Bernd Samani, Abbas Braun, Jürgen Sack, Ingolf
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Cardiac MR Elastography: Comparison with left ventricular pressure measurement

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