• United States

Research Output 1974 2019

1974
96 Citations (Scopus)

Network analysis of microcirculation of cat mesentery

Lipowsky, H. H. & Zweifach, B. W., Jan 1 1974, In : Microvascular Research. 7, 1, p. 73-83 11 p.

Research output: Contribution to journalArticle

Microcirculation
Mesentery
Electric network analysis
Pressure gradient
Cats
1975
1 Citation (Scopus)

DIRECT MEASUREMENTS OF THE RESISTANCE TO FLOW IN MICROVASCULAR NETWORKS.

Zweifach, B. W. & Lipowsky, H. H., Jan 1 1975, In : American Society of Mechanical Engineers, Applied Mechanics Division, AMD. 1, p. 1-3 3 p.

Research output: Contribution to journalConference article

Mechanics
Blood
Fluid mechanics
Flow rate
1976
6 Citations (Scopus)

A pressure measuring system for long term in vivo pressure measurements

Rosenberg, G., Pierce, W. S., Brighton, J. A., Phillips, W. M., Landis, D. L. & Lenker, J., Dec 1 1976, In : Surgery. 79, 4, p. 456-459 4 p.

Research output: Contribution to journalArticle

Pressure Transducers
Catheters
Pressure
Equipment and Supplies
1977
1 Citation (Scopus)

Factors influencing fluid movement between blood and terminal lymphatics.

Zweifach, B. W., Hargens, A. R. & Lipowsky, H. H., Dec 1 1977, In : Bibliotheca anatomica. 15 Pt 1, p. 499-503 5 p.

Research output: Contribution to journalArticle

Biological Transport
Lymphatic System
Biological Models
Osmotic Pressure
Capillary Permeability
14 Citations (Scopus)

Long-term in vivo automatic electronic control of the artificial heart

Landis, D. L., Pierce, W. S., Rosenberg, G., Donachy, J. H. & Brighton, J. A., Jan 1 1977, In : Transactions - American Society for Artificial Internal Organs. 23, 1, p. 519-524 6 p.

Research output: Contribution to journalArticle

Medical Electronics
Artificial Heart
Hemodynamics
59 Citations (Scopus)

Methods for the simultaneous measurement of pressure differentials and flow in single unbranched vessels of the microcirculation for rheological studies

Lipowsky, H. H. & Zweifach, B. W., Jan 1 1977, In : Microvascular Research. 14, 3, p. 345-361 17 p.

Research output: Contribution to journalArticle

Microcirculation
Microvessels
Shear stress
Blood
Cells
101 Citations (Scopus)

Quantitative studies of microcirculatory structure and function. III. Microvascular hemodynamics of cat mesentery and rabbit omentum

Zweifach, B. W. & Lipowsky, H. H., Jan 1 1977, In : Circulation research. 41, 3, p. 380-390 11 p.

Research output: Contribution to journalArticle

Omentum
Mesentery
Cats
Hemodynamics
Rabbits
9 Citations (Scopus)

The Artificial Heart: Progress and Promise

Pierce, W. S., Brighton, J. A., Donachy, J. H., Landis, D. L., Rosenberg, G., Prophet, G. A., White, W. J. & Waldhausen, J. A., Jan 1 1977, In : Archives of Surgery. 112, 12, p. 1430-1438 9 p.

Research output: Contribution to journalArticle

Artificial Heart
Financial Management
Cardiac Output
Research Personnel
Weights and Measures

Vasomotor adjustments of pressure and flow in the microcirculation. A comparison of micro- and macroscopic evidence.

Zweifach, B. W. & Lipowsky, H. H., Dec 1 1977, In : Bibliotheca anatomica. 15 Pt 1, p. 156-161 6 p.

Research output: Contribution to journalArticle

Vasomotor System
Capillary Resistance
Mesenteric Veins
Omentum
Mesenteric Arteries
1978
255 Citations (Scopus)

Application of the "two-slit" photometric technique to the measurement of microvascular volumetric flow rates

Lipowsky, H. H. & Zweifach, B. W., Jan 1 1978, In : Microvascular Research. 15, 1, p. 93-101 9 p.

Research output: Contribution to journalArticle

Cells
Flow rate
Glass
Microcirculation
Plasma Cells

ARTIFICIAL HEART.

Phillips, W. M., Rosenberg, G., Donachy, J. & Pierce, W. S., Jan 1 1978, p. 111-115. 5 p.

Research output: Contribution to conferencePaper

Artificial heart
Blood
Pumps
Biomaterials
Polyurethanes
9 Citations (Scopus)

Determining arterial pressure, left atrial pressure and cardiac output from the left pneumatic drive line of the total artificial heart

Rosenberg, G., Landis, D. L., Phillips, W. M., Stallsmith, J. & Pierce, W. S., Jan 1 1978, In : Transactions - American Society for Artificial Internal Organs. 24, 1, p. 341-344 4 p.

Research output: Contribution to journalArticle

Artificial Heart
Atrial Pressure
Cardiac Output
Arterial Pressure
Blood Pressure
32 Citations (Scopus)

Prolonged mechanical support of the left ventricle.

Pierce, W. S., Donachy, J. H., Landis, D. L., Brighton, J. A., Rosenberg, G., Migliore, J. J., Prophet, G. A., White, W. J. & Waldhausen, J. A., Jan 1 1978, In : Circulation. 58, 3 Pt 2

Research output: Contribution to journalArticle

Heart Ventricles
Heart Valves
Cardiopulmonary Bypass
Left Ventricular Function
Aorta
270 Citations (Scopus)

The distribution of blood rheological parameters in the microvasculature of cat mesentery

Lipowsky, H. H., Kovalcheck, S. & Zweifach, B. W., Jan 1 1978, In : Circulation research. 43, 5, p. 738-749 12 p.

Research output: Contribution to journalArticle

Mesentery
Arterioles
Microvessels
Venules
Cats
1979
18 Citations (Scopus)

A two and one half year clinical experience with a mechanical left ventricular assist pump in the treatment of profound postoperative heart failure

Olsen, E. K., Pierce, W. S., Donachy, J. H., Landis, D. L., Rosenberg, G., Phillips, W. M., Prophet, G. A., O'Neill, M. J. & Waldhausen, J. A., Dec 1 1979, In : International Journal of Artificial Organs. 2, 4, p. 197-206 10 p.

Research output: Contribution to journalArticle

Heart Failure
Pumps
Surgery
Blood
Autologous Blood Transfusions
9 Citations (Scopus)

Total artificial heart implantation in calves with pump of an angled port design

Shaffer, L. J., Donachy, J. H., Rosenberg, G., Phillips, W. M., Landis, D. L., Prophet, G. A., Olsen, E., Arrowood, J. A. & Pierce, W. S., Jan 1 1979, In : Transactions - American Society for Artificial Internal Organs. 25, 1, p. 254-259 6 p.

Research output: Contribution to journalArticle

Cardiac Surgical Procedures
Prosthesis Design
Artificial Heart
Sulfones
Polyurethanes
1980
10 Citations (Scopus)

Biventricular mechanical assistance in the postcardiotomy patient.

Olsen, E. K., Shaffer, L. J., Pae, W. E., Parr, G. V., Rosenberg, G. & Pierce, W. S., Dec 1 1980, In : Transactions - American Society for Artificial Internal Organs. 26, p. 29-33 5 p.

Research output: Contribution to journalArticle

Assisted Circulation
Cardiac Surgical Procedures
Cardiopulmonary Bypass
Heart Failure
34 Citations (Scopus)

Calcification inside artificial hearts: Inhibition by warfarin-sodium

Pierce, W. S., Donachy, J. H., Rosenberg, G. & Baier, R. E., Jan 1 1980, In : Science. 208, 4444, p. 601-603 3 p.

Research output: Contribution to journalArticle

Artificial Heart
Warfarin
Vitamin K
Anticoagulants
Minerals
5 Citations (Scopus)

Effects of norepinephrine and isoproterenol on microcirculation of the rat dental pulp

Kim, S., Usami, S., Lipowsky, H. H. & Chien, S., Jan 1 1980, In : Microvascular Research. 20, 1, 1 p.

Research output: Contribution to journalArticle

Microcirculation
Isoproterenol
Pulp
Rats
Norepinephrine
29 Citations (Scopus)

Hematocrit determination in small bore tubes from optical density measurements under white light illumination

Lipowsky, H. H., Usami, S., Chien, S. & Pittman, R. N., Jan 1 1980, In : Microvascular Research. 20, 1, p. 51-70 20 p.

Research output: Contribution to journalArticle

Density (optical)
Lighting
Hematocrit
Tungsten
Light
274 Citations (Scopus)

In vivo measurements of "apparent viscosity" and microvessel hematocrit in the mesentery of the cat

Lipowsky, H. H., Usami, S. & Chien, S., Jan 1 1980, In : Microvascular Research. 19, 3, p. 297-319 23 p.

Research output: Contribution to journalArticle

Mesentery
Microvessels
Hematocrit
Viscosity
Cats
25 Citations (Scopus)

Mechanical circulatory assistance for postoperative cardiogenic shock: a three year experience.

Pae, W. E., Rosenberg, G., Donachy, J. H., Landis, D. L., Phillips, W. M., Parr, G. V., Prophet, G. A. & Pierce, W. S., Dec 1 1980, In : Transactions - American Society for Artificial Internal Organs. 26, p. 256-261 6 p.

Research output: Contribution to journalArticle

Cardiogenic Shock
Refractory materials
Cardiopulmonary Bypass
Cardiovascular System
Catheterization
24 Citations (Scopus)

Pulsatile prosthetic valve flows.

Phillips, W. M., Snyder, A., Alchas, P., Rosenberg, G. & Pierce, W. S., Dec 1 1980, In : Transactions - American Society for Artificial Internal Organs. 26, p. 43-49 7 p.

Research output: Contribution to journalArticle

Steady flow
Prosthetics
Lasers
29 Citations (Scopus)

Right ventricular failure after repair of left ventricular aneurysm

Parr, G. V. S., Pierce, W. S., Rosenberg, G. & Waldhauser, J. A., Jan 1 1980, In : Journal of Thoracic and Cardiovascular Surgery. 80, 1, p. 79-84 6 p.

Research output: Contribution to journalArticle

Atrial Pressure
Aneurysm
Pulmonary Artery
Blood Pressure
Right Ventricular Function

Testicular microvascular alterations following prolonged exposure to diethylstilbestrol (DES)

Edelist, T., Lipowsky, H. H., Cantor, J. O. & Tannenbaum, M., Jan 1 1980, In : Microvascular Research. 20, 1, 1 p.

Research output: Contribution to journalArticle

Diethylstilbestrol
1981
18 Citations (Scopus)

Approaches to the artificial heart

Pierce, W. S., Myers, J., Donachy, J. H., Rosenberg, G., Landis, D. L., Prophet, G. A. & Snyder, A. J., Oct 26 1981, In : Surgery. 90, 2, p. 137-148 12 p.

Research output: Contribution to journalArticle

Artificial Heart
Equipment and Supplies
Elastomers
Nuclear Energy
Magnets
97 Citations (Scopus)

Design and evaluation of the Pennsylvania State University mock circulatory system

Rosenberg, G., Phillips, W. M., Landis, D. L. & Pierce, W. S., Jan 1 1981, In : ASAIO Journal. 4, 2, p. 41-49 9 p.

Research output: Contribution to journalArticle

1982
13 Citations (Scopus)

A cam-type electric motor-driven left ventricular assist device

Rosenberg, G., Snyder, A., Weiss, W., Landis, D. L., Geselowitz, D. B. & Pierce, W. S., Jan 1 1982, In : Journal of Biomechanical Engineering. 104, 3, p. 214-220 7 p.

Research output: Contribution to journalArticle

Bearings (structural)
Left ventricular assist devices
Heart-Assist Devices
Cams
Electric motors
21 Citations (Scopus)

A roller screw drive for implantable blood pumps

Rosenberg, G., Snyder, A., Weiss, W., Landis, D., Geselowitz, D. & Pierce, W., Jan 1 1982, In : Transactions - American Society for Artificial Internal Organs. 28, 1, p. 123-126 4 p.

Research output: Contribution to journalArticle

Rollers (machine components)
Blood
Pumps
8 Citations (Scopus)
Microcirculation
Hemodynamics
Microvessels
Pericardium
Plasma Cells
5 Citations (Scopus)

Determinants of microvascular blood flow.

Lipowsky, H. H., Aug 1 1982, In : Physiologist. 25, 4, p. 357-363 7 p.

Research output: Contribution to journalArticle

Microcirculation
Blood Viscosity
Blood Flow Velocity
Hematocrit
Vascular Resistance
3 Citations (Scopus)

ELECTRIC POWER DRIVEN TOTAL ARTIFICIAL HEART.

Rosenberg, G., Snyder, A. J., Weiss, W., Landis, D. L., Pierce, W. S., Greathouse, S. L., Ostroff, A. H. & Geselowitz, D. B., 1982, IEEE/Engineering in Medicine and Biology Society Annual Conference. IEEE, p. 111-116 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Artificial heart
27 Citations (Scopus)

Hematocrit determination in small bore tubes by differential spectrophotometry

Lipowsky, H. H., Usami, S., Chien, S. & Pittman, R. N., Jan 1 1982, In : Microvascular Research. 24, 1, p. 42-55 14 p.

Research output: Contribution to journalArticle

Density (optical)
Spectrophotometry
Hematocrit
Glass
Hemoglobins
38 Citations (Scopus)

Human SS red cell rheological behavior in the microcirculation of cremaster muscle

Lipowsky, H. H., Usami, S. & Chien, S., Jan 1 1982, In : Blood Cells. 8, 1, p. 113-126 14 p.

Research output: Contribution to journalArticle

Abdominal Muscles
Microcirculation
Arterioles
Viscosity
Fluorescein
1 Citation (Scopus)

VOLUME COMPENSATION IN A VAD BY USE OF A TWO-PHASE FLUID.

Mckyton, A., Tarbell, J., Geselowitz, D., Pierce, W. & Rosenberg, G., Dec 1 1982, In : Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1 p.

Research output: Contribution to journalConference article

Fluids
Compensation and Redress
1983
10 Citations (Scopus)

Clinical Effectiveness of Mechanical Ventricular Bypass in Treating Postoperative Heart Failure

Pierce, W. S., Parr, G. V. S., Myers, J., Donachy, J. H., Rosenberg, G., Landis, D. L. & Bull, A. P., Jan 1 1983, In : Artificial Organs. 7, 1, p. 25-30 6 p.

Research output: Contribution to journalArticle

Heart Failure
Pumps
Polyurethanes
Ventricular Function
Catheterization
3 Citations (Scopus)
Compliance

Development of an implantable electric motor artificial heart

Richenbacher, W. E., Rosenberg, G. & Landis, D. L., Jan 1 1983, In : Surgical Forum. VOL. 34, p. 250-252 3 p.

Research output: Contribution to journalArticle

Artificial Heart

ELECTRIC MOTOR DRIVES FOR TOTAL HEART REPLACEMENT.

Snyder, A. J., Rosenberg, G., Landis, D. L., Weiss, W. & Pierce, W. S., Dec 1 1983, In : Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1 p.

Research output: Contribution to journalConference article

Electric motors

IN VIVO EXPERIENCE USING A MOTOR-DRIVEN HEART ASSIST PUMP WITH IMPLANTED COMPLIANCE CHAMBER.

Rosenberg, G., Weiss, W., Landis, D. L., Donachy, J. H., Snyder, A. J., Wisman, C. B., Geselowitz, D. B. & Pierce, W. S., 1983, Unknown Host Publication Title. Gerhard, G. C. & Miller, W. T. (eds.). IEEE, p. 438-441 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pumps
Compliance
4 Citations (Scopus)

Portable artificial heart systems

Pierce, W. S., Jarvik, R., Heimes, H. P., Rosenberg, G. & Watson, J., Jan 1 1983, In : Transactions - American Society for Artificial Internal Organs. 29, 1, p. 754-759 6 p.

Research output: Contribution to journalArticle

Equipment Design
Artificial Heart

VELOCITY CONTROL OF MOTOR DRIVEN VENTRICULAR ASSIST DEVICE.

Greathouse, S. L., Lewis, J. B., Ostroff, A. H., Geselowitz, D. B., Rosenberg, G. & Pierce, W. S., Dec 1 1983, p. 433-437. 5 p.

Research output: Contribution to conferencePaper

Velocity control
1984
19 Citations (Scopus)

Arteriovenous distribution of hemodynamic parameters in the rat dental pulp

Kim, S., Lipowsky, H. H., Usami, S. & Chien, S., Jan 1 1984, In : Microvascular Research. 27, 1, p. 28-38 11 p.

Research output: Contribution to journalArticle

Dental Pulp
Hemodynamics
Microvessels
Pulp
Rats
3 Citations (Scopus)

CHRONIC ANIMAL STUDIES WITH A MOTOR-DRIVEN LVAD AND AN IMPLANTED COMPLIANCE CHAMBER.

Snyder, A., Rosenberg, G., Weiss, W., Huang, W., Landis, D. & Pierce, W. S., Dec 1 1984, In : Transactions - American Society for Artificial Internal Organs. 30, p. 92-97 6 p.

Research output: Contribution to journalConference article

Compliance
Animals
Cams
Machining
Pumps
1 Citation (Scopus)

DEVELOPMENT AND VERIFICATION OF EVAD/MOCK LOOP SYSTEM MODEL.

Fikse, T. H., Rosenberg, G., Snyder, A. J., Landis, D. L., Hanson, K. L., Kern, S. E., Geselowitz, D. B. & Pierce, W. S., 1984, IEEE/Engineering in Medicine and Biology Society Annual Conference. Semmlow, J. L. & Welkowitz, W. (eds.). IEEE, p. 33-37 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric motors
Mechanical drives
Blood
Hydraulics
Pumps

Development of a long-term electric motor left ventricular assist system

Gaines, W. E., Rosenberg, G., Pennock, J. L. & Pierce, W. S., Jan 1 1984, In : Heart Transplantation. 3, 4, p. 323-328 6 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

ELECTRIC MOTOR-DRIVEN TOTAL ARTIFICIAL HEART: SEVEN MONTHS SURVIVAL IN THE CALF.

Rosenberg, G., Snyder, A. J., Landis, D. L., Geselowitz, D. B., Donachy, J. H. & Pierce, W. S., 1984, In : Transactions - American Society for Artificial Internal Organs. 30, p. 69-74 6 p.

Research output: Contribution to journalArticle

Artificial heart
Artificial Heart
Electric motors
Animals
Cadaver
4 Citations (Scopus)

Segmental and total microvascular resistances during hemorrhagic hypotension in rabbit omentum

Firrell, J. C., Lipowsky, H. H., Usami, S. & Chien, S., Jan 1 1984, In : American Journal of Physiology - Heart and Circulatory Physiology. 16, 3

Research output: Contribution to journalArticle

Omentum
Microvessels
Hypotension
Venules
Arterioles

Segmental and total microvascular resistances during hemorrhagic hypotension in rabbit omentum

Firrell, J. C., Lipowsky, H. H., Usami, S. & Chien, S., 1984, In : American Journal of Physiology - Heart and Circulatory Physiology. 16, 3

Research output: Contribution to journalArticle

Omentum
Microvessels
Hypotension
Venules
Arterioles
1 Citation (Scopus)

SIMULATION STUDIES OF THE PENN STATE EVAD: VELOCITY CONTROL.

Lewis, J. B., Hanson, K. L., Geselowitz, D. B., Sidhwa, E. D., Ostroff, A. H., Rosenberg, G. & Pierce, W. S., Dec 1 1984, p. 15-18. 4 p.

Research output: Contribution to conferencePaper

Velocity control
Torque
Lead
Mathematical models
Control systems