Medical & Biological Engineering & Computing

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Microcomputer-based system for monitoring motor activity
Medical & Biological Engineering & Computing - Tập 28 Số 1 - Trang 74-76 - 1990
Happy Johnson, Leigh C. Ward, Luke Jones
Mechanical pathophysiology of some heart diseases: a theoretical model study
Medical & Biological Engineering & Computing - Tập 28 - Trang 237-248 - 1990
R. Beyar, S. Sideman
Sarcomere dynamics are related to the global left ventricular (LV) function in some representative pathological states, by using a theoretical model which combines sarcomere function, LV fibrous structure and geometry with the haemodynamic loading conditions. The analysis shows that pressure (concentric) hypertrophy due to hypertension or aortic stenosis is associated with an increase of the norma... hiện toàn bộ
Construction and application of hierarchical decision tree for classification of ultrasonographic prostate images
Medical & Biological Engineering & Computing - Tập 34 Số 2 - Trang 105-109 - 1996
R.J.B. Giesen, A.L. Huynen, R.G. Aarnink, Jean J.M.C.H. de la Rosette, F.M.J. Debruyne, Hessel Wijkstra
Effect of fiducial marker defects on stereotactic target localization in the Leksell stereotactic system
Medical & Biological Engineering & Computing - Tập 49 - Trang 775-782 - 2011
Jeong-Hoon Park, Jung Ho Han, Chae-Yong Kim, Chang Wan Oh, Dong Gyu Kim, Tae-Suk Suh, Hyun-Tai Chung
The stereotactic procedure in neurosurgery is a minimally invasive technique used to treat intracranial lesions. The fiducial markers of a frame-based stereotactic procedure are important for defining the stereotactic coordinate system and in locating the target. These markers are often defective in stereotactic images owing to the presence of air bubbles in the imaging indicator. We have assessed... hiện toàn bộ
Computerised analysis of ST segment changes in ambulatory electrocardiograms
Medical & Biological Engineering & Computing - Tập 25 - Trang 513-519 - 1987
S. Akselrod, M. Norymberg, I. Peled, E. Karabelnik, M. S. Green
The TELAVIV system for computerised arrhythmia detection and identification in ambulatory ECGs has been extended to include a reliable and rapid computerised method for ST-segment analysis. It now incorporates self-learning analysis and classification of ST-segment changes. Some advantages for ST-segment analysis present in this algorithm are: (a) it analyses three channels simultaneously instead ... hiện toàn bộ
Selection of human skin microtopography quantitative parameters by principal components analysis
Medical & Biological Engineering & Computing - Tập 21 - Trang 179-185 - 1983
R. Bazin, S. Makki, P. Agache, M. Baud, J. C. Cardot
Skin surface replicas of the forearm and the abdomen of 29 subjects were studied with a profilometer. This apparatus gives quantitative measurements of the microtopography of skin using seven parameters. The principal components analysis (PCA) applied on the data given by the profilometer confirmed the existence of two groups of parameters: amplitude and spacing (wavelength). The PCA also shows th... hiện toàn bộ
Toward the improvement in fetal monitoring during labor with the inclusion of maternal heart rate analysis
Medical & Biological Engineering & Computing - Tập 54 - Trang 691-699 - 2015
Hernâni Gonçalves, Paula Pinto, Manuela Silva, Diogo Ayres-de-Campos, João Bernardes
Fetal heart rate (FHR) monitoring is used routinely in labor, but conventional methods have a limited capacity to detect fetal hypoxia/acidosis. An exploratory study was performed on the simultaneous assessment of maternal heart rate (MHR) and FHR variability, to evaluate their evolution during labor and their capacity to detect newborn acidemia. MHR and FHR were simultaneously recorded in 51 sing... hiện toàn bộ
Dynamics of magnetic particles in cylindrical Halbach array: implications for magnetic cell separation and drug targeting
Medical & Biological Engineering & Computing - Tập 48 Số 8 - Trang 745-753 - 2010
Peter Babinec, Andrej Krafčík, Melánia Babincová, Joseph Rosenecker
An appraisal of some non-invasive cardiovascular techniques
Medical & Biological Engineering & Computing - Tập 11 - Trang 235-235 - 1973
The potential induced in anisotropic tissue by the ultrasonically-induced Lorentz force
Medical & Biological Engineering & Computing - Tập 46 - Trang 195-197 - 2007
Nancy Tseng, Bradley J. Roth
In the presence of a magnetic field, an ultrasonic wave propagating through tissue will induce Lorentz forces on the ions, resulting in an electrical current. If the electrical conductivity is anisotropic, this current is tilted toward the fiber direction, causing charge to accumulate between half-wavelengths: positive charge where the current vectors converge and negative where the current vector... hiện toàn bộ
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