Brandon K Fornwalt

Summary

Affiliation: Georgia Institute of Technology
Country: USA

Publications

  1. pmc Validation of in vivo 2D displacements from spiral cine DENSE at 3T
    Gregory J Wehner
    Department of Biomedical Engineering, University of Kentucky, 741 S Limestone, BBSRB B353, Lexington 40509, KY, USA
    J Cardiovasc Magn Reson 17:5. 2015
  2. pmc Simplified post processing of cine DENSE cardiovascular magnetic resonance for quantification of cardiac mechanics
    Jonathan D Suever
    Department of Pediatrics and Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 16:94. 2014
  3. pmc Obesity reduces left ventricular strains, torsion, and synchrony in mouse models: a cine displacement encoding with stimulated echoes (DENSE) cardiovascular magnetic resonance study
    Sage P Kramer
    Departments of Pediatrics, Physiology and Medicine, University of Kentucky, 800 Rose St, MN 150, Lexington, KY 40536, USA
    J Cardiovasc Magn Reson 15:109. 2013
  4. pmc Reproducibility of cine displacement encoding with stimulated echoes (DENSE) cardiovascular magnetic resonance for measuring left ventricular strains, torsion, and synchrony in mice
    Christopher M Haggerty
    Departments of Pediatrics, Physiology and Medicine, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 15:71. 2013
  5. pmc Agreement is poor among current criteria used to define response to cardiac resynchronization therapy
    Brandon K Fornwalt
    Emory University School of Medicine, Department of Radiology, Atlanta, GA 30322, USA
    Circulation 121:1985-91. 2010
  6. doi request reprint 2D cine DENSE with low encoding frequencies accurately quantifies cardiac mechanics with improved image characteristics
    Gregory J Wehner
    Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 17:93. 2015
  7. doi request reprint Left ventricular mechanical dysfunction in diet-induced obese mice is exacerbated during inotropic stress: a cine DENSE cardiovascular magnetic resonance study
    Christopher M Haggerty
    Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 17:75. 2015
  8. doi request reprint Cross-correlation delay to quantify myocardial dyssynchrony from phase contrast magnetic resonance (PCMR) velocity data
    Jana G Delfino
    Department of Radiology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Magn Reson Imaging 28:1086-91. 2008
  9. pmc Variability in tissue Doppler echocardiographic measures of dyssynchrony is reduced with use of a larger region of interest
    Brandon K Fornwalt
    Emory University School of Medicine, Atlanta, GA 30322, USA
    J Am Soc Echocardiogr 22:478-85.e3. 2009
  10. pmc Effects of region of interest tracking on the diagnosis of left ventricular dyssynchrony from Doppler tissue images
    Brandon K Fornwalt
    Emory University School of Medicine, Department of Biomedical Engineering, Atlanta, Georgia 30322, USA
    J Am Soc Echocardiogr 21:234-40. 2008

Collaborators

Detail Information

Publications22

  1. pmc Validation of in vivo 2D displacements from spiral cine DENSE at 3T
    Gregory J Wehner
    Department of Biomedical Engineering, University of Kentucky, 741 S Limestone, BBSRB B353, Lexington 40509, KY, USA
    J Cardiovasc Magn Reson 17:5. 2015
    ..We hypothesized that spiral cine DENSE is valid at 3T and tested this hypothesis by measuring displacement errors at both 1.5T and 3T in vivo...
  2. pmc Simplified post processing of cine DENSE cardiovascular magnetic resonance for quantification of cardiac mechanics
    Jonathan D Suever
    Department of Pediatrics and Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 16:94. 2014
    ..We hypothesized that peak left ventricular circumferential, longitudinal and radial strains and torsion could be accurately quantified using this simplified analysis...
  3. pmc Obesity reduces left ventricular strains, torsion, and synchrony in mouse models: a cine displacement encoding with stimulated echoes (DENSE) cardiovascular magnetic resonance study
    Sage P Kramer
    Departments of Pediatrics, Physiology and Medicine, University of Kentucky, 800 Rose St, MN 150, Lexington, KY 40536, USA
    J Cardiovasc Magn Reson 15:109. 2013
    ..However, the effect of obesity on cardiac function in animal models is not well-defined. We hypothesized that diet-induced obesity in mice reduces strain, torsion, and synchrony in the left ventricle (LV)...
  4. pmc Reproducibility of cine displacement encoding with stimulated echoes (DENSE) cardiovascular magnetic resonance for measuring left ventricular strains, torsion, and synchrony in mice
    Christopher M Haggerty
    Departments of Pediatrics, Physiology and Medicine, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 15:71. 2013
    ..We hypothesized that cine DENSE CMR would show excellent inter-test and inter-observer reproducibility for advanced measures of left ventricular (LV) function in mice...
  5. pmc Agreement is poor among current criteria used to define response to cardiac resynchronization therapy
    Brandon K Fornwalt
    Emory University School of Medicine, Department of Radiology, Atlanta, GA 30322, USA
    Circulation 121:1985-91. 2010
    ..No study has investigated agreement among these response criteria. We hypothesized that the agreement among the various response criteria would be poor...
  6. doi request reprint 2D cine DENSE with low encoding frequencies accurately quantifies cardiac mechanics with improved image characteristics
    Gregory J Wehner
    Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 17:93. 2015
    ..We hypothesized that ke below 0.10 cycles/mm can be used to improve image characteristics and provide accurate measures of cardiac mechanics...
  7. doi request reprint Left ventricular mechanical dysfunction in diet-induced obese mice is exacerbated during inotropic stress: a cine DENSE cardiovascular magnetic resonance study
    Christopher M Haggerty
    Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY, USA
    J Cardiovasc Magn Reson 17:75. 2015
    ....
  8. doi request reprint Cross-correlation delay to quantify myocardial dyssynchrony from phase contrast magnetic resonance (PCMR) velocity data
    Jana G Delfino
    Department of Radiology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Magn Reson Imaging 28:1086-91. 2008
    ..To apply cross-correlation delay (XCD) analysis to myocardial phase contrast magnetic resonance (PCMR) tissue velocity data and to compare XCD to three established "time-to-peak" dyssynchrony parameters...
  9. pmc Variability in tissue Doppler echocardiographic measures of dyssynchrony is reduced with use of a larger region of interest
    Brandon K Fornwalt
    Emory University School of Medicine, Atlanta, GA 30322, USA
    J Am Soc Echocardiogr 22:478-85.e3. 2009
    ..In this study, the authors hypothesized that using larger regions of interest (ROIs) to generate velocity curves from Doppler tissue images would significantly reduce the variability of DTI dyssynchrony parameters...
  10. pmc Effects of region of interest tracking on the diagnosis of left ventricular dyssynchrony from Doppler tissue images
    Brandon K Fornwalt
    Emory University School of Medicine, Department of Biomedical Engineering, Atlanta, Georgia 30322, USA
    J Am Soc Echocardiogr 21:234-40. 2008
    ..The error caused by use of a stationary ROI may affect the diagnosis of dyssynchrony, but this has not been quantified...
  11. pmc Quantification of left ventricular volumes, mass, and ejection fraction using cine displacement encoding with stimulated echoes (DENSE) MRI
    Christopher M Haggerty
    University of Kentucky, Departments of Pediatrics, Physiology and Medicine, Lexington, Kentucky, USA
    J Magn Reson Imaging 40:398-406. 2014
    ..To test the hypothesis that magnitude images from cine displacement encoding with stimulated echoes (DENSE) magnetic resonance imaging (MRI) can accurately quantify left ventricular (LV) volumes, mass, and ejection fraction (EF)...
  12. doi request reprint Quantification of left ventricular internal flow from cardiac magnetic resonance images in patients with dyssynchronous heart failure
    Brandon K Fornwalt
    Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Magn Reson Imaging 28:375-81. 2008
    ..To develop a method for quantifying left ventricular (LV) internal flow as a measure of dyssynchrony using standard cine cardiac magnetic resonance (CMR) images...
  13. doi request reprint Acute pacing-induced dyssynchronous activation of the left ventricle creates systolic dyssynchrony with preserved diastolic synchrony
    Brandon K Fornwalt
    Emory University School of Medicine, Department of Biomedical Engineering, 101 Woodruff Circle, Suite 2001, Atlanta, GA 30322, USA
    J Cardiovasc Electrophysiol 19:483-8. 2008
    ..We therefore hypothesized that acute RVA pacing would cause diastolic dyssynchrony in addition to creating systolic dyssynchrony...
  14. ncbi request reprint Cross-correlation quantification of dyssynchrony: a new method for quantifying the synchrony of contraction and relaxation in the heart
    Brandon K Fornwalt
    Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Am Soc Echocardiogr 20:1330-1337.e1. 2007
    ..Most methods used to quantify dyssynchrony use a time-to-peak analysis, which is quantitatively simplistic and requires manual identification of systole and selection of peak velocities...
  15. pmc Patients with repaired tetralogy of Fallot suffer from intra- and inter-ventricular cardiac dyssynchrony: a cardiac magnetic resonance study
    Linyuan Jing
    Departments of Pediatrics, Physiology, Biomedical Engineering and Medicine, University of Kentucky, UK Chandler Hospital, 741 S Limestone, BBSRB B353, Lexington, KY 40536, USA
    Eur Heart J Cardiovasc Imaging 15:1333-43. 2014
    ..To better understand the contribution of cardiac dyssynchrony to dysfunction, we developed a method to quantify left (LV), right (RV), and inter-ventricular dyssynchrony using standard cine cardiac magnetic resonance (CMR)...
  16. pmc Resynchronization and strain recovery following reimplantation of anomalous coronary artery: a tissue Doppler and three-dimensional echocardiographic study
    Brandon K Fornwalt
    Emory University School of Medicine, Atlanta, GA, USA
    Congenit Heart Dis 2:58-63. 2007
    ..However, segmental contractility improved significantly but remained depressed at discharge. The immediate recovery observed following reimplantation of anomalous coronary may be largely due to resynchronization...
  17. pmc Method to create regional mechanical dyssynchrony maps from short-axis cine steady-state free-precession images
    Jonathan D Suever
    Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology Emory University, Atlanta, Georgia, USA
    J Magn Reson Imaging 39:958-65. 2014
    ..Existing techniques for assessing regional dyssynchrony require difficult acquisition and/or postprocessing. Our goal was to develop a widely applicable and robust method to assess regional mechanical dyssynchrony...
  18. doi request reprint Role of MRI in patient selection for CRT
    Jana G Delfino
    Department of Radiology, Emory University, Atlanta, Georgia 30322, USA
    Echocardiography 25:1176-85. 2008
    ..The goal of this manuscript is to review the MRI methods that can be used in the selection of patients for CRT...
  19. doi request reprint Telemetric Blood Pressure Assessment in Angiotensin II-Infused ApoE-/- Mice: 28 Day Natural History and Comparison to Tail-Cuff Measurements
    Christopher M Haggerty
    Saha Cardiovascular Research Center, University of Kentucky, Lexington, Kentucky, United States of America
    PLoS ONE 10:e0130723. 2015
    ..Future studies of aneurysm mechanics using the ApoE(-/-)/angiotensin-II model would be better in assuming pulse pressure profiles consistent with our telemetry findings instead of attempting to measure pulse pressure in individual mice...
  20. doi request reprint Gadolinium free cardiovascular magnetic resonance with 2-point Cine balanced steady state free precession
    Tori A Stromp
    Department of Physiology, University of Kentucky, 741 South Limestone Street, BBSRB room 355, Lexington, 40536, KY, USA
    J Cardiovasc Magn Reson 17:90. 2015
    ..We hypothesized that acquisition of two differentially MT-weighted bSSFP images (termed 2-point bSSFP) can identify tissue that would enhance with gadolinium similar to standard of care late gadolinium enhancement (LGE)...
  21. doi request reprint Determination of transmural, endocardial, and epicardial radial strain and strain rate from phase contrast MR velocity data
    Jana G Delfino
    Department of Biomedical Engineering, Georgia Institute of Technology Emory University, Atlanta, GA 30322, USA
    J Magn Reson Imaging 27:522-8. 2008
    ..To develop a method for computing radial strain (epsilon) and strain rate (SR) from phase contrast magnetic resonance (PCMR) myocardial tissue velocity data...
  22. doi request reprint A new method for the determination of aortic pulse wave velocity using cross-correlation on 2D PCMR velocity data
    Samuel W Fielden
    Department of Radiology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Magn Reson Imaging 27:1382-7. 2008
    ..To evaluate the reproducibility of a new multisite axial pulse wave velocity (PWV) measurement technique that makes use of 2D PCMR data and cross-correlation analysis...