Proceedings of the Seventh New England (Northeast) Bioengineering Conference

Contents and Scientific ProgramPrefacePlenary SessionSession 1: Computer Applications A Hardware Device for Multispike Signal Detection and Sorting by Template Matching Ram-It: A High-Resolution Interval Timer and Buffered Storage System for Neurophysiological Experiments Microcomputer Based Digital Filter in Real Time EEG Analysis Microprocessor Based Real-Time Systolic Time Interval System A Dual-Processor System for Evoked Potential Research A Microcomputer-Based Data Acquisition and Control System for Cardiopulmonary Stress Testing A Computerized Unit Data Acquisition and Reduction System High Rate Data Acquisition System for Biomedical ApplicationsSession 2: Instrumentation and Transducers An Electrosurgical Hazard Monitor Simple and Truly Aseptic Catheterization of Females The Fluid Mechanics of Cromolyn Sodium Inhalers Used for Asthma Prevention A High Sensitivity Blood Pressure Device with Digital Output Experimental and Peroperative Clinical Cardioergometry by A New Type of Local Myocardial Force-Probe Pressure Transducer Development, Characterization, and Compensation Developmental Capacitive Pressure Sensor for Biotelemetry A Goggle System Using Electrically Activated Liquid Crystal Shutters for Use in Visually Evoked Response Tests A Respiratory Rate Monitor Using An Audio Pick-UpSession 3a: Transport Phenomena Dialysate Regeneration and A Prototype for A Portable Artificial Kidney Hydrodynamics of Blood Manifolds On Artificial Organs Platelet Adhesion in A Flow Chamber Metabolic Insults to Platelets at Porous InterfacesSession 3b: Biochemical Processes H+ Binding and Diffusion-Reaction Rates in Collagen Electromechanics Kinetic Analysis of Insulin Behavior by Interactive Simulation Erythrocyte Shape Alteration During Atherogenesis Salicylic Acid As Possible Antidotes for Mercury: A Hypothesis Based On Computer-Aided Physio-Chemical Studies Migration and Chemotaxis of Polymorphonuclear Leukocytes Under AgaroseSession 4: Biomaterials and Structural Analysis of Bone Stress Analysis of Human Femur- A Rational Approach A Laminated Polymer - Metal Fixation Plate Reduced Stress Shielding with Fracture Stabilization Ultrasonic Removal of Porous Coated Implants Failure Analysis of Stainless Steel Surgical Implants Stress Analysis of the Subtrochanteric Region of the Femur Fabrication of Dense ß-Tricalcium Phosphate Ceramic for Potential Prosthetic Applications The Early Results of Clinical Trials with A Micro-Porous Metal Hip Prosthesis Slowly Propagating Fracture in BoneSession 5 Computer Applications II The Electrophysiological Data Interface Application of A Partitioned Karhunen-Loeve Expansion Scheme to ECG/VCG Data Compression Analysis of Vascular Sound in Stenotic Flows Experimental Determination of the Arterial System Impulse Response: Preliminary Results Two-Dimensional Digital Filters with Application to Biomedical Image Processing An Automated Method for Characterizing Cross-Sectional Properties of Complex Shapes Time Series Analysis of Human Eye Counterroling During Head Tilt A Program for the Analysis and Simulation of SignalsSession 6: Optical Methods Experimental and theoretical Models for Tissue Reflectance Oximetry Infrared Absorption Studies of Tissue Infrared Micro Interferometer Tissue Analysis Helium-Neon Laser Irradiation Induced Changes in Blood A Sensitive Fiber Optic Force Transducer Measuring Isometric Muscle Contraction A Multi-Angle Laser Light-Scattering Spectro-Photometer for the Study of Sickling Kinetics in Sickle Cell AnemiaSession 7: Ultrasound and Imaging Clinical Applications of Current Ultrasound Techniques A High Resolution Real Time Ultrasonic Scanner Ultrasound Image Analysis and Feature Enhancement Frequency-Dependent Ultrasonic Backscatter From Brain Tissue A Stereo-Chemical Model of Bone Derived From Ultrasonic Measurements Ultrasonic Imaging Using Phased Mosaic ArraysSession 8: Fracture Healing and Cements Efficacy of Various Forms of Fixation of Transverse Fractures of the Patella Optimum Fixation of Bone Cement in Total Hip Replacement I An Alumina-Acrylic Composite Bone Cement Rheology of Acrylic Bone Cements Development of A Variable Stiffness, Absorbable Bone Plate Bone-Cement Interface Pressures in Different Femoral Components of Total Hip Replacement I Mechanical Factors in Fracture HealingSession 9: Cell Imaging Contour Classifiers for Cytomorphological Analyses An Emission Tomographic Method for Analysis of Myocardial Scintigrams The Characterization of Histologic Images by Digital Analysi An Algorithm for Distortion Analysis in Two-Dimensional Patterns Using Its Projections A Histomorphometric Technique for Analyzing Blood Vessel Smooth Muscle, Elastin, and CollagenSession 10: Hemodynamics and Devices Toward The Development of A Combined Membrane Oxygenator Hemodialyzer Development of A Rigid-Vane Artificial Heart Non-Invasive bypass Patency Diagnostic (bypass-Rheothermia) A New Low-Power, High-Reliability Infusion Pump Immunogenicity of Tanned Tissues Used in Heart Valve Replacement About The Durability of Artificial Blood Pumps Hemodynamic Evaluation of A Concave-Convex Aortic Pivoting Disc Valve Prothesis A Preliminary Flow Study of A Two-Dimensional Model of A Concave-Convex Pivoting Disc Prosthetic Heart ValveSession 11: Ultrasonic Methods Measurement of Blood Coagulation Time Using Ultrasound Geometrical Effects in Ultrasonic Transducer Performance In Vivo Validation of the Transit-Time Ultrasonic Volume Flow Meter Average Frequency Processor for Ultrasonic Doppler Systems Ultrasound Detection of Aggregation of Red Cells in Blood FlowSession 12: Cancer, Toxicology, and Epidemiology Toxicological Effects of Trace Contaminants in A Spacecraft Environment: Towards A Toxo-Kinetic/Dynamic Model Regional Electroaerosol Deposition in the Lung The Fitting of A Cubic Model to A Three-Component Environmental System A Deterministic Discrete-Time Communicable Disease Model with Age Specific States for Measles A Stochastic Approach to The Quantitative Analysis of Cell Kinetics Using Flow Microfluorometric Dna Data Local Microwave Hyperthermia as a Treatment of Cancer Controlled Ultrasonic Temperature Response in Tumor IrradiationSession 13: Medical Computing Shared Clinical Engineering in A Rural Setting A Radiology Reporting System Which Is Based Upon An Individualized List of the Most Likely Differential Diagnoses Considerations in the Design of Patient Monitoring for Barbiturate Therapy in Severe Head Trauma The Use of A Minicomputer for Ambulatory Care An Arterial Blood Pressure Preprocessor Using A Combined Analog and Digital Signal Processing Method A Respiratory Subsystem for A Patient Monitoring Computer System Medical Data Systems and Information Networks: A Course Outline Audio-Visual Communication System for Improved Delivery of Services in A Psychosomatic ClinicSession 14: Cardiovascular Function Abnormal Left Ventricular Contraction Patterns in Patients with Coronary Artery Disease Characterization of Cardiovascular System Dynamics by Generation of Programmmed Premature Contractions The Mechanics of Human Fetal Membrane Rupture A New Approach to Studying The Mechanical Properties of Arteries In Vivo Non Invasive Determination of Aortic Stiffness The Heart Muscle Able to Dilate Actively by An Intramural Hydraulic Mechanism to Control Diastolic Filling and Ventricular SizeSession 15: Bioelectric Analysis Power Spectral Analysis of EEG Development A Model of Thalamocortical Interactions and their Role in the Development of Generalized Seizures Separation of Cockroach Giant Axon Action Potentials Using Multi Unit Analysis Techniques Determination of the Onset and Termination of EMG Signals Visual Evoked Response Measurement Employing A Computerized Rapid Random Flash Technique Instrumentation for Brainwave Signal ProcessingSession 16: Rehabilitation Tremor Analysis Using Accelerometry and the Fast Fourier Transform Wheelchair Cushion Effect On Skin Temperature, Heat Flux and Relative Humidity Biomedical Measurement of Hypernasal Speech Eye Tracking Communication Systems: Tests of Non-Verbal Cerebral Palsy Children A Portable Tactile Aid for the Deaf Using A Z80 Micro-Processor Controller Project Involved with The Research and Development of Simulators of Auditory and Visual Impairment A Nearsightedness ComputerSession 17: Tomography and Imaging I Overview of Computed Tomography Beam Hardening Artifacts in Computerized Tomography Reconstruction From Divergent Beams: A Comparison of Algorithms with and without RebinningSession 18: Anesthesiology A Piezoelectric Adsorption Hygrometer for Fast Measurements On Respiratory Gases Boundary Conditions for A Near-Continuum Model for Anesthesia Humidifying of Anesthesia Gases, Current Concepts, and Considerations Shift in Experimental V-I Plot of Bilayer Membranes Exposed to Anesthetics Evaluation of the Esophageal Accelerometer as a Noninvasive Measurement of Cardiac Function Modelling Thermal Changes in Human During Anaesthesia A Fast Response Analyzer for Simultaneous On-Line Measurement of N20 and Halothane Or Ν20 and EnfluraneSession 19: Electrodes Use of Large Electrodes to Reduce Myoelectric Noise Temperature and Current Density Distributions at Electrosurgical Dispersive Electrode Sites Parametric Stimulation of Biological Tissue Development of A Percutaneous Energy Transmission System Electrical Field Control Electrode for Peripheral Nerve Stimulation A Serial to Parallel Interface System for Tens Pain Suppression Regional Myocardial Perfusion Measured by Hydrogen WashoutSession 20 Biomechanics I On The Mechanical Properties of Ligaments Under Cyclic Loading An Absorbable Polymer-Filamentous Carbon Tissue Scaffold for Ligament and Tendon Replacement Relationship Between Stress and Neuronal Response of Receptors in Posterior Knee Joint Capsule Muscle Energy in Human Wrist Motions Compressive Strength of Mp Joint and Its Relationship to Subchondral Bone Density Anatomic Basis for Anterolateral Rotational Instability of The Knee Piezoelectric Response of Bone as a Function of Frequency Magnetic Field Dependence of Hall-Coefficient in Bone-ApatiteSession 21: Tomography and Imaging II Clinical Nuclear Medicine Image Processin Initial Experience with A Coded Aperture for Myocardial Imaging Cytocomputer Biomedical Image Analysis Polar Sampling Theorems and their Application to Image Reconstruction by Fourier Transforms in CatSession 22: Simulation Models Computer Model of Cerebral Blood Flow Nonlinear Parametric Feedback in the Regulation of Intracranial Pressure Hemodynamic Responses to In-Series Cardiac Assistance: Studies Using A Computer Model Computer Simulation of Androgen Influence On The Menstrual Cycle Validation of A Non-Linear Model of the Arterial System Network Thermodynamic Simulation of Non-Linear,Coupled Left Ventricular Flow Patterns As An Index of Performance Design of A SyneuristorSession 23A: Pulmonary Function Anatomic Deadspace Measurement in Mechanically Ventilated Patients An Experimental Study of Velocity Distribution and Pressure Drop Characteristics in Human Lung Model A Mathematical Model of the Lung, with Emphasis On Airway Resistance, to Evaluate Pulmonary Phase Change As An Early Indicator of COPD A Model of the Gas Trapping Mechanism in Excised LungsSession 23B: Electromyography Patterned Response in the Analysis of Human Electromyograms Performance of A Digital EMG Processor Sampling Rate for Myoelectric Processors Dynamic Error Performance of the Human Operator Inexpensive Pocket-Sized Electromyographic Feedback DeviceSession 24: Biomechanics II Error and Optimization Study of the Instantaneous Center and Angle of Rotation of A Body Joint Back Strength Assessment Through Isokinetic Analysis Changes in the Form of the Lumbar Spine Correlation of Leg Loading Components in Snow Skiing A Dynamic Long Leg Orthosis for Duchenne Muscular Dystrophy Patients Noninvasive Determination of Bone Stiffness The Lower End of the Human Humerus: Structure and Surgery The Measurement and Display of Foot/Ground Forces During Gait