Michael D Herr

Summary

Affiliation: Pennsylvania State University
Country: USA

Publications

  1. pmc A real-time device for converting Doppler ultrasound audio signals into fluid flow velocity
    Michael D Herr
    Heart and Vascular Institute, Penn State Hershey, 500 University Drive, Hershey, PA 17033, USA
    Am J Physiol Heart Circ Physiol 298:H1626-32. 2010
  2. pmc Transthoracic Doppler echocardiography to noninvasively assess coronary vasoconstrictor and dilator responses in humans
    Afsana Momen
    Penn State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, The Milton S HersheyMedical Center, Hershey, Pennsylvania, USA
    Am J Physiol Heart Circ Physiol 298:H524-9. 2010
  3. pmc Effect of cold air inhalation and isometric exercise on coronary blood flow and myocardial function in humans
    Matthew D Muller
    Penn State Heart and Vascular Institute, Pennsylvania State University College of Medicine, Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
    J Appl Physiol 111:1694-702. 2011
  4. ncbi request reprint Effects of age on brachial artery myogenic responses in humans
    Mary E J Lott
    Division of Cardiology, H047, Penn State College of Medicine, P O Box 850, Hershey, PA 17033, USA
    Am J Physiol Regul Integr Comp Physiol 287:R586-91. 2004
  5. ncbi request reprint Muscle interstitial calcium during head-up tilt in humans
    Soraya Samii
    Division of Cardiology, Pennsylvania State University College of Medicine, Milton S Hershey Medical Center, Hershey, PA 17033, USA
    Circulation 109:215-9. 2004
  6. ncbi request reprint Aging and the exercise pressor reflex in humans
    Troy A Markel
    Cardiology Division, Penn State College of Medicine, Hershey, PA, USA
    Circulation 107:675-8. 2003

Collaborators

Detail Information

Publications6

  1. pmc A real-time device for converting Doppler ultrasound audio signals into fluid flow velocity
    Michael D Herr
    Heart and Vascular Institute, Penn State Hershey, 500 University Drive, Hershey, PA 17033, USA
    Am J Physiol Heart Circ Physiol 298:H1626-32. 2010
    ..This signal converter provides this capability inexpensively and requires no modification of either the imaging or data acquisition system...
  2. pmc Transthoracic Doppler echocardiography to noninvasively assess coronary vasoconstrictor and dilator responses in humans
    Afsana Momen
    Penn State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, The Milton S HersheyMedical Center, Hershey, Pennsylvania, USA
    Am J Physiol Heart Circ Physiol 298:H524-9. 2010
    ..The relative increases in CBV with adenosine obtained by intracoronary Doppler guidewire and TTD were similar (62 +/- 10% vs. 65 +/- 12%). Noninvasive TTD provides reliable human coronary circulatory constrictor and dilator data...
  3. pmc Effect of cold air inhalation and isometric exercise on coronary blood flow and myocardial function in humans
    Matthew D Muller
    Penn State Heart and Vascular Institute, Pennsylvania State University College of Medicine, Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
    J Appl Physiol 111:1694-702. 2011
    ....
  4. ncbi request reprint Effects of age on brachial artery myogenic responses in humans
    Mary E J Lott
    Division of Cardiology, H047, Penn State College of Medicine, P O Box 850, Hershey, PA 17033, USA
    Am J Physiol Regul Integr Comp Physiol 287:R586-91. 2004
    ....
  5. ncbi request reprint Muscle interstitial calcium during head-up tilt in humans
    Soraya Samii
    Division of Cardiology, Pennsylvania State University College of Medicine, Milton S Hershey Medical Center, Hershey, PA 17033, USA
    Circulation 109:215-9. 2004
    ..Both of these cell types require extracellular calcium ([Ca2+]o) for proper activation and function. We hypothesize that [Ca2+]o rises with tilt and in the process contributes to vasoconstriction...
  6. ncbi request reprint Aging and the exercise pressor reflex in humans
    Troy A Markel
    Cardiology Division, Penn State College of Medicine, Hershey, PA, USA
    Circulation 107:675-8. 2003
    ..Blood flow limitation to exercising muscles engages the muscle reflex during exercise, evoking an increase in heart rate (HR), blood pressure (BP), and muscle sympathetic nerve activity (MSNA)...