Epicardial Coronary Arteries
Spyra, W.J.T., M. R. Bell, R. C. Bahn, A. R. Zinsmeister, E. L. Ritman and A. A. Bove:
Detection of mild coronary stenoses using the Dynamic Spatial Reconstructor. Investigative Radiology 25:472-479 (May) 1990.
Liu, Y-H., R. C. Bahn and E. L. Ritman:
Myocardial volume perfused by coronary artery branches - a three-dimensional x-ray CT evaluation in human cadaver hearts. International J of Cardiac Imaging 8:95-101, 1992.
Pao, Y. C., J. T. Lu and E. L. Ritman:
Bending and twisting of an in vivo coronary artery at a bifurcation. Journal of Biomechanics 25:287-295, 1992.
Thomas, P. J., C. H. McCollough and E. L. Ritman:
An electron-beam CT approach for transvenous coronary arteriography. J Comput Assist Tomogr 19(3):383-389, 1995.
McLarty, A. J., C.G.A. McGregor, N. H. Shu, V. M. Miller and E. L. Ritman:
Impact of acute pulmonary rejection on cardiac function. Circulation 91:186-191, 1995.
Pao, Y. C., S. S. Srivatsa and E. L. Ritman:
Incremental-loading, plane-strain prediction of dilation rupture of atherosclerotic plaque within the coronary arterial wall. Advances in Bioengineering, ASME Publication #G01035 Vol. 33:417-418, 1996.
Rumberger, J. A., B. J. Rensing, J. E. Reed, E. L. Ritman and P. F. Sheedy:
Noninvasive coronary artery angiography using electron beam computed tomography. Proceedings of SPIE Medical Imaging 1996: Physiology and Function from Multidimensional Images 2709:93-106, 1996.
Kwon, H. M., G. Sangiorgi, E. L. Ritman, A. Lerman,C. McKenna, R. Virmani, W. D. Edwards, D. R. Holmes and R. S. Schwartz:
Adventitial vasa vasorum in balloon-injured coronary arteries - visualization and quantitation by a microscopic three-dimensional computed tomography technique. Journal of the American College of Cardiology 32(7):2072-2079, 1998.
Kwon, H. M., G. Sangiorgi, E. L. Ritman, C. McKenna, D. R. Holmes Jr., R. S. Schwartz and A. Lerman:
Enhanced coronary vasa vasorum neovascularization in experimental hypercholesterolemia. Journal Clinical Investigation 101:1551-1556, 1998.
Lund, P. E., L. C. Naessens, C. A. Seaman, D. A. Reyes and E. L. Ritman:
Volume of myocardium perfused by coronary artery branches as estimated from 3D micro-CT images of rat hearts. Proc of SPIE – Med Imaging 2000: Physiol and Function from Multidimensional Images 3978:314-319, 2000.
Myocardial Microcirculation
Liu, Y-H., R. C. Bahn and E. L. Ritman:
Dynamic intramyocardial blood volume: evaluation with a radiological opaque marker method. American Journal of Physiology 263 (Heart Circ Physiol 32):H963-H967, 1992.
Wu, X-S., D. L. Ewert, Y-H. Liu and E. L Ritman:
In vivo relation of intramyocardial blood volume to myocardial perfusion: Evidence supporting microvascular site for autoregulation. Circulation 85:730-737, 1992.
Ritman, E. L:
Myocardial capillary permeability to iohexol: evaluation with fast x-ray computed tomography. Investigative Radiology 29:612-617, 1994.
Wu, X-S., R. C. Bahn and E. L. Ritman:
Myocardial microcirculation as evaluated with CT. IN: Sideman S, Beyar R (eds.): Molecular and Subcellular Cardiology: Effects of Structure and Function. Plenum Press, New York, 1995, Chapter 26 pp. 261-268.
Ritman, E. L.:Computed tomography evaluation of regional increases in microvascular permeability after reperfusion of locally ischemic myocardium in intact pigs. Acad Radiol 2:952-958, 1995.
Liu, Y-H., R. C. Bahn and E. L. Ritman (with technical assistance of P. E. Beighley):
Microvascular blood volume-to-flow relationships in porcine heart wall: whole body CT evaluation in vivo. Am Physiol 269 (Heart Circ Physiol 38):H1820-H1826, 1995.
Behrenbeck, T., M. K. O'Connor, D. A. Foley and E. L. Ritman:
Dynamics of intramyocardial blood volume in the intact animal - evaluation with SPECT. Proc SPIE Med Imag '96: Physiol & Function from Multidimensional Images 2709:338-346, 1996.
Beighley, P. E., P. J. Thomas, S. M. Jorgensen and E. L. Ritman:
3D architecture of myocardial microcirculation in intact rat heart: A study with micro-CT. IN: Sideman S, Beyar R (eds): Analytical and Quantitative Cardiology, Plenum Press, New York, 1997, Chapter 14 pp 165-175
Christian, T. F., M. K. O'Connor, R. S. Schwartz, R. J. Gibbons and E. L. Ritman:
Techneticum-99m MIBI to assess coronary collateral flow during acute myocardial infarction in two closed-chest animal models. Journal of Nuclear Medicine 38(12):1840-1846, 1997
Ritman, E. L.:
Temporospatial heterogeneity of myocardial perfusion and blood volume in the porcine heart wall. Annals of Biomedical Engineering 26:519-525, 1998.
Lerman, L. O., S. Siripornpitak, N. Luna-Maffei, P.F. Sheedy II and E. L. Ritman:
Measurement of in vivo myocardial microcirculatory function with electron beam CT. Journal of Comput Assisted Tomogr 23(3):390-398, 1999.
Beighley, P. E., P. J. Thomas, S. M. Jorgensen and E. L. Ritman:
3D architecture of myocardial microcirculation in intact rat heart: A study with micro-CT. IN: Sideman S., Beyar R(eds.): Analytical and Quantitative Cardiology: From Genetics to Function, Plenum Press (In Press)
Möhlenkamp, S., L. O. Lerman, A. Lerman, T. R. Behrenbeck, Z. S. Katu‰i, P. F. Sheedy II and E. L. Ritman:
Minimally invasive evaluation of coronary microvascular function by electron beam computed tomography. Circulation 102:2411-2416, 2000.
Rodriguez-Porcel, M., A. Lerman, E. L. Ritman, S. H. Wilson, P. J.M. Best and L. O. Lerman:
Altered myocardial microvascular 3D architecture in experimental hypercholesterolemia. Circulation 102:2028-2030, 2000.
Chareonthaitawee, P., M. K. O’Connor, R. J. Gibbons, E. L. Ritman and T. F. Christian:
The effect of collateral flow and myocardial viability on the distribution of technetium-99m sestamibi in a closed-chest model of coronary occlusion and reperfusion. European Journal of Nuclear Med 27(5):508-516, 2000.
Chareonthaitawee, P., M. K. O’Connor, R. J. Gibbons, E. L. Ritman and T. F. Christian:
The effect of collateral flow and myocardial viability on the distribution of technetium-99m sestamibi in a closed-chest model of coronary occlusion and reperfusion. European Journal of Nuclear Med 27(5):508-516, 2000.
Schmermund, A., L. O. Lerman, J. A. Rumberger, P. E. Lund, E. A. Pfeifer, P. F. Sheedy II and E. L. Ritman:
Effects of acute and chronic angiotensin receptor blockade on myocardial vascular blood volume and perfusion in a pig model of coronary microembolization. American Journal of Hypertension 13:827-837, 2000.
Myocardial Function
Chung, N., X. Wu, K. R. Bailey and E. L. Ritman:
LV pressure-volume area and oxygen consumption: Evaluation in intact dog by fast CT. Am J Physiol:258(Heart Circ Physiol,27)(4):H1208-H1215, 1990.
Chung, N., X. Wu and E. L. Ritman:
LV oxygen consumption and pressure-volume area: Role of norepinephrine and verapamil. American Journal of Physiology 261(Heart and Circulatory Physiology 30):H77-H82, 1991.
Pao, Y. C. and E. L. Ritman:
Inverse determination of global and regional mechanical properties of in vivo heart wall. IN: Saigal S., Olson L. G. (eds.): Inverse Problems in Mechanics, AMD-vol. 186:91-98, 1994.
Pao, Y. C. and E. L. Ritman:
Quantification of instantaneous extension and contraction of in vivo myocardial fiber. 1994 Advances in Bioengineering, BED-Vol. 28:7-8, 1994.
Simari, R. D., M. R. Bell, Y. C. Pao, B. J. Gersh and E. L. Ritman:
The acute effect of delayed reperfusion following myocardial infarction: a 3D xray imaging analysis. Proceedings of SPIE Medical Imaging 1996: Physiology and Function from Multidimensional Images 2709:383-392, 1996.
Ritman, E. L. (with the technical assistance from P. E. Beighley):
Heterogeneity of myocardial fatty acid tracer uptake in the porcine heart wall. Proc SPIE, Medical Imaging 1997, Physiology and Function from Multidimensional Images 3033:180-186, 1997.
Pao, Y. C. and E. L. Ritman:
Comparative characterization of the infarcted and reperfused ventricular wall muscles by finite element analysis and a myocardial muscle—blood composite model. Computers and Biomedical Research 31:18-31, 1998.
Renal Function
Bentley, M. D., L. O. Lerman, E. A. Hoffman, M. J. Fiksen-Olsen, E. L. Ritman and J. C. Romero:
Measurement of renal perfusion and blood flow with fast computed tomography. Circulation Research 74:945-951, 1994.
Lerman, L. O., M. D. Bentley, M. J. Fiksen-Olsen, D. M. Strick, E. L. Ritman and J. C. Romero:
Pressure dependency of canine intrarenal blood flow within the range of autoregulation. American Journal of Physiology 268 (Renal Fluid Electrolyte Physiol. 37):F404-F409, 1995.
Lerman, L. O., M. D. Bentley, M. J. Fiksen-Olsen, D. M. Strick, E. L. Ritman and J. C. Romero:
Pressure dependency of canine intrarenal blood flow within the range of autoregulation. American Journal of Physiology 268 (Renal Fluid Electrolyte Physiol. 37):F404-F409, 1995.
Garcia-Sanz, A., A. Rodriguez-Barbero, M. D. Bentley, E. L. Ritman and J. C. Romero:
Three-dimensional microcomputed tomography of renal vasculature in rats. Hypertension 31(No. 1, Part 2):440-444 (Jan) 1998
Ortiz, M. C., A. Garcia-Sanz, M. D. Bentley, L. A. Fortepiani, J. Garcia-Estan, E. L. Ritman, J. C. Romero and L. A. Juncos:
Microcomputed tomography of kidneys following chronic bile duct ligation. Kidney International 58:1632-1640, 2000.
Lerman, L. O., E. L. Ritman, L. I. Pelaez, P. F. Sheedy II and J. D. Krier:
Quantification of single-kidney glomerular filtration rate with electron-beam computed tomography. Proc of SPIE – Med Imaging 2000: Physiol and Function from Multidimensional Images 3978:539-546, 2000.
Gastro-intestinal and Hepatic-biliary Anatomy and Function
Kumar, D., E. L. Ritman and J.-R. Malagelada:
Antral volume and propulsion retropulsion in response to upper intestinal nutrients in a canine model.
American Journal of Physiology 264 (Gastrointestinal,Liver Physiology 27):G1077-G1081, 1993.
Ludwig, J., E. L. Ritman, N. F. LaRusso, P. F. Sheedy and G. Zumpe:
Anatomy of the human biliary system studied by quantitative computer-aided three-dimensional imaging techniques. Hepatology 27:893-899, 1998.
Masyuk, T. V., E. L. Ritman, and N. F. LaRusso:
Quantitative assessment of the intrahepatic biliary system by three-dimensional reconstruction. American Journal of Pathology: Cellular and Molecular Biology of Disease (In Press)
Pulmonary / Vascular Anatomy & Function
Warner, D. O., J-F. Brichant, E. L. Ritman and K. Rehder:
Chest wall motion during epidural anesthesia in dogs. Journal of Applied Physiology 70:539-547, 1991.
Warner, D. O., J-F. Brichant, E. L. Ritman and K. Rehder:
Epidural anesthesia and intrathoracic blood volume. Anesthesia and Analgesia 77:135-140, 1993.
Warner, D. O., M. J. Joyner and E. L. Ritman:
Anesthesia and chest wall function in dogs. Journal of Applied Physiology 76:2802-2813, 1994.
Warner, D. O., M. J. Joyner and E. L. Ritman:
Chest wall responses to rebreathing in halothane-anesthetized dogs. Anesthesiology 83(4):835-843, 1995.
Warner, D. O., M. A. Warner and E. L. Ritman:
Human chest wall function while awake and during halothane anesthesia. Anesthesiology 82:6-19, 1995.
Warner, D. O., M. A. Warner and E. L. Ritman:
Mechanical significance of respiratory muscle activity in humans during halothane anesthesia. Anesthesiology 84(2):309-321, 1996.
Warner, D. O., M. A. Warner and E. L. Ritman:
Atelectasis and chest wall shape during halothane anesthesia. Anesthesiology 85(1):49-59, 1996.
Wu, Q-H., C.G.A. McGregor, X-S. Wu, M. Rinaldi, F. N. Nilsson, H. D. Tazelaar and E. L. Ritman:
Three-dimensional xray imaging of the anatomy and function of the lungs and pulmonary arteries in dogs following single lung transplant. Proc of SPIE Med Imaging 1996: Physiology and Function from Multidimensional Images 2709:55-62, 1996.
Bone
Westerlind, K. C., T. J. Wronski, E. L. Ritman, Z-P. Luo, K-N. An, N. H. Bell and R. T. Turner:
Estrogen regulates the rate of bone turnover but bone balance in ovariectomized rats is modulated by prevailing mechanical strain. Proc National Academy Sci USA 94:4199-4204, 1997
Ritman, E. L., M. E. Bolander, L. A. Fitzpatrick and R. T. Turner:
Micro-CT imaging of structure-to-function relationship of bone microstructure and associated vascular involvement. Technology and Health Care 6:403-412, 1998.
Peyrin, F., M. Salome, P. Cloetens, A. M. Laval-Jeantet, E. L. Ritman and P. Rüegsegger:
Micro-CT examinations of trabecular bone samples at different resolutions: 14, 7 and 2 micron level. Technology and Health Care 6:391-401, 1998.
Sibonga, J. D., M. Zhang, E. L. Ritman and R. T. Turner:
Restoration of bone mass in the severely osteopenic sensescent rat. J of Gerontology: Biological Sci 55A(2):B71-B78, 2000.
Image Reconstruction and Analysis
Higgins, W. E., N. Chung and E. L. Ritman:
LV chamber extraction from 3-D CT images -- Accuracy and precision. Comput Med Imaging and Graphics 16(1):17-26, 1992.
Faridani, A., E. L. Ritman and K. T. Smith:
Local tomography. SIAM Journal of Applied Math (Society for Industrial and Applied Mathematics) 52:459-484, 1992.
Faridani, A., E. L. Ritman and K. T. Smith:
Examples of local tomography. SIAM Journal of Applied Math (Society for Industrial and Applied Mathematics) 52:1193-1198, 1992.
Higgins, W. E., W.J.T. Spyra, R. A. Karwoski and E. L. Ritman:
System for analyzing high-resolution three-dimensional coronary angiograms. IEEE Trans on Med Imaging 15(3):377-385 (June) 1996.
Ritman, E. L., J. H. Dunsmuir, A. Faridani, D. V. Finch, K. T. Smith and P. J. Thomas:
Local reconstruction applied to x-ray microtomography. IN: Chavent G., Papanicolaou G., Sacks P., Symes W. (eds): IMA Volumes in Mathematics and Its Applications, Inverse Problems in Wave Propagation, 90:443-452, Springer-Verlag, New York, March 1997
Taylor, S.R. and K.P. Roos:
High-speed digital imaging microscopy of isolated muscle cells. Chapter 9 IN: Muscular Contraction; Andrew Huxley Festschrift. Cambridge University Press, (ed., R.M. Simmons). 1992, pp. 127-146.
Taylor, S.R., I.R. Neering, L.A. Quesenberry, and V.A. Morris:
Volume changes during contraction of isolated frog muscle fibers. Adv. Exp. Med. Biol., 311: 91-101, 1992.
