Proceedings of the 1997

16th SOUTHERN BIOMEDICAL ENGINEERING CONFERENCE

4-6 April 1997Broadwater Beach Resort and Hotel

Biloxi, Mississippi, USA

Jointly Sponsored By

MISSISSIPPI STATE UNIVERSITYDepartment of Agricultural and Biological Engineering

&UNIVERSITY OF MISSISSIPPI MEDICAL CENTER

Departments of Restorative Dentistry/Biomaterials, Orthopaedic Surgery, andThe Division of Continuing Health Professional Education

Support is provided in part by grants from

THE WHITAKER FOUNDATIONand

THE NATIONAL SCIENCE FOUNDATION

Technical co-Sponsorship byIEEE/ENGINEEING IN MEDICINE AND BIOLOGY SOCIETY

Endorsed byBIOMEDICAL ENGINEERING SOCIETY

INSTITUTE OF BIOLOGICAL ENGINEERINGSOCIETY FOR BIOMATERIALS

EditorsJOEL D. BUMGARDNER, PH.D. AND AARON D. PUCKETT, PH.D.

E&B

UB/TIB Hannover 89115 964 452

TABLE OF CONTENTS

GENERAL SESSION I

#1 BIOINSTRUMENTATION I

Electrode Errors in Bioiinpedance Measurement Systems for Long-Term ApplicationsAlbert Lo/.anoPerm State University, Lehman, PA 3

Power Spectral Analysis of Heart Rate Variability in Ryanodine Receptor Type 3 Knockout MiceKihwan Ju, Tomoyuki Kuwaki, Hiroshi Takeshima, Masamitu lino and Mamoru KumadaUniversity of Tokyo, Tokyo, Japan 7

Use of a Precise and Portable Flow Standard to Improve the Accuracy of Medical andScientific Laboratory Flow MeasurementsJ.C. Conti, E.R. Strope and L.D. SpenceDynatek Dalta Scientific Instruments, Galena, MO 11

A Comparison of Cerebral Blood Flow and EEG Spectra in Global Forebrain IschemiaHun K. Park, Akihiro Takahashi, Miguel Melgar and Fernando G. DiazWayne State University, Detroit, MI 15

#2 REHABILITATION/ERGONOMICS

Evaluation of Speech lllumina Mentor (SIM) for Teaching Speech to the Hearing ImpairedAli Soleymani, M.H. Southwood, Martin J. McCuteheonUniversity of Alabama at Birmingham, Birmingham, AL 19

A Common, Cost-Effective Information System for RehabilitationRobert RyderUniversity of South Alabama, Mobile, AL 23

Assistive Technology Enhancement Using Human Factors EngineeringDr. Colleen Phillips and Margaret GiasolliLouisiana Tech University, Ruston, LA 26

The Challenge of Designing Biomedical Equipment During Human Research for LongDuration Low-Gravity NASA MissionsMs. Catherine Kramer, Elizabeth M. KallaNASA Johnson Space Center, Houston, TX 30

A Foot-Operated Computer KeypadJun-Ing Ker and Yanming ZhuLouisiana Tech University, Ruston LA. 38

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PLENARY PRESENTATION I:

"The Impact of the Changing Regulatory Perspective in the Food and Drug Administration'sRegulation of Orthopedic Devices"Mark N. Melkerson, MS, Chief of Orthopedics Devices Branch, Office of Device Evaluation, Centerfor Devices and Radiological Health, Food and Drug Adminstration

PLENARY PRESENTATION II - THE BARRY SAUER MEMORIAL LECTURE:

"Interfaces: Correlations Among In-Vitro, In-Vivo Models and Human Investigations of Surgical Implants"Jack E. Lemons, Ph.D., Director, Division of Orthopeadic Laboratory Research, Department ofSurgery, University of Alabama School of Medicine, Birmingham, AL.

PLENARY PRESENTATION III:

"Clinical Applications of Interventional Magnetic Resonance Imaging: Current Limitations and FutureDirections"Stephen C. Crawford, M.D., Director of Interventional magnetic Resonance Imaging, Univeristy ofMississippi Medical Center, Jackson, MS

GENERAL SESSION II

#3 COMPUTERS IN MEDICINE I

Application of the Genetic Algorithm to Nutritional CounselingAbubabkr Alkhalifa, M.J. Niccolai and W.J. NowackUniversity of South Alabama, Mobile, AL. 43

A Knowledge-Based Computerized Compact Clinic for a Family PhysicianMahendra Varman, Marino Niccolai, Clifford D. Ferris and Meera VarmanUniversity of South Alabama, Mobile, AL. 46

Expert System in Neonatal Total Parenteral NutritionMeera Varman, Marino Niccolai and Mahendra VarmanUniversity of South Alabama, Mobile, AL. 50

#4 TISSUE ENGINEERING I

Expression of Human Fibrinogen in Transgenic MiceAnuradha Subramanian, Stephen P. Butler, Frank C. Gwazdauskas, Henry K. Lubon and William H. VelanderVirginia Tech., Blacksburg, VA, and American Red Cross, Rockville, MD 57

Cardiac Nonmyocyte Hyperplasia is Modulated by Angiotensin II and StretchJudy L. Cezeaux, Kristye S. Banta and William R. JacobsUniversity of Tennessee, Knoxville, TN, and University of Tennessee Medical Center, Knoxville, TN 61

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#5 BIOMECHANICS I

Visco-Elastic Constitutive Laws of Soft Tissues: Combination of Short and Long Time Memory EffectsDominique P. Pioletti, Lalaonirina R. Rakotomanana, Jean-Francois Benvenuti and Pierre-Francois LeyvrazOrthopaedic Hospital, Lausanne-Switzerland 67

A Biomechanical Model of Electroporation of a Biological MembraneKang ChengUniversity of Pennsylvania, Philadelphia, PA 70

Computer Simulation Studies of Cervical Spine Extension MechanicsThomas H. Jansen and Denis J. DiAngeloUniversity of Tennessee-Memphis, Memphis, TN. 74

#6 BIOMATERIALS (UHMWPE)

Investigation of Long-Lived Free Radicals in Shelf-Aged UHMWPE Tibial LinersH.H. Trieu, W.O. Haggard, J.E. Parr, D.E. Thomas and M.S. JahanWright Medical Technology, Inc., Arlington, TN, and University of Memphis, Memphis, TN 79

Wear Properties of Ultra High Molecular Weight Polyethylene MaterialA.L. Ogden, R.H. Mayeux and D.P. MukherjeeLouisiana State University Medical Center, Shreveport, LA 84

An Investigation of the Effects of Extrusion Environment on Ultra-High Molecular Weight PolyethyleneChristopher Rogers, Hai Trieu and Srikant GirWright Medical Technology, Inc., and University of Memphis, Memphis, TN 88

Investigation of Cryogenic Treatment of UHMWPEH.H. Trieu, L.H. Morris, M.E. Kaufman, R. Hood and L.S. Jenkins Wright Medical Technology, Inc., Arlington, TN 90

GENERAL SESSION III:

#7 ORTHOPAEDICS

Characterization ofTi-15Mo Beta Titanium AlloyLyle D. Zardiackas, Darrell W. Mitchell and John A. DisegiUniversity of Mississippi Medical Center, Jackson, MS 95

Biomechanical Analysis of a Multi-Level Corpectomy Model: A Comparison ofStrut Graft Reconstruction Alone or Concurrent with Anterior Cervical PlatingD.J. DiAngelo, K.T. Foley, T.H. Jansen, S.T. Dull and E.C. EcksteinUniversity of Tennessee at Memphis, Memphis, TN 99

Anterior Cruciate Ligament Reconstruction Using Engineered Textile StructuresFrank MoutosNorth Carolina State University, Raleigh, NC. 103

Reticulated Ceramic Composites for Hard Tissue ReplacementsKevin Thome, Philippe D. Saint-Pierre, University of Illinois at Chicago, Chicago, IL 107

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#8 BIOINSTRUMENTATION II

Computer Aided Measurement and Instrumentation in Condition of the Neuro-Muscular ActivitySlavco Gorceski, Jovanka Darkoska, Robert HristovskiMinistry of Defense, Skopje, R. Macedonia 1 13

Adaptive LMS Delay Measurement in Dual Blood Volume Pulse Signals for Non-Invasive MonitoringArmando Barreto, Cesar D. Aguilar, E. Elise JakubzickFlorida International University, Miami, FL 117

Laplacian Electrocardiograms with Active ElectrodesC.C. Lu, W.Y. Fang, S. Uhlhorn, P.P. TarjanUniversity of Miami, Coral Gables, FL 121

#9 BIOMATERIALS II (METALS)

The Effect of Surface and Heat Treatments on Corrosion of Unalloyed Titanium ImplantsDeepak V. Kilpadi and Jack LemonsUniversity of Alabama at Birmingham, Birmingham. AL 127

Anodizing Treatments for Titanium ImplantsJohn A. Disegi, Synthes U.S.A., Paoli, PA 129

Encapsulating Samarium Cobalt Magnets for Improved Corrosion ResistanceRobert Goldberg, William Lyzak and Kevin ThorncUniversity of Illinois at Chicago, Chicago, IL 133

Fatigue Evaluation of the Synthes Cervical Vertebrae Plate and the Synthes Anterior Cervical Vertebrae PlateLyle D. Zardiackas, Lance D. Dillon and Robert A. McGuireUniversity of Mississippi Medical Center, Jackson, MS 137

#10 BIOMECHANICS II

Determination of the Weight Bearing Portion of the Acetabulum Using Simulated Transverse Acetabular FracturesKirstin Widding, Mark S. Vrahas and Kevin A. ThomasLouisiana State University, New Orleans, LA 143

Quasistatic Model of The Knee During ExercisesNaiquan Zheng, Glenn S. Fleisig, Rafael F. Escamilla and Steven W. BarrentineAmerican Sports Medicine Institute, Birmingham, AL 147

Biomechanical Pull-Out Strength of the Cervical Spine Locking Plate (CSLP) Expansion ScrewsDarrell Mitchell, Russell A. Betcher, Stephen G. Littlejohn, Lance Dillon, Robert A. McGuire and Lyle D. ZardiackasUniversity of Mississippi Medical Center, Jackson, MS 151

The Effect of Labeling on the Fatigue Behavior of Spinal RodsJeffrey Rouleau, Dennis J. Buchanan and Dusty Anna NeedhamWright Medical Technology, Arlington, TN 155

PLENARY PRESENTATION IV:

"Tissue Engineering Applications in Vascular Biology"Larry V. Mclntire, Ph.D., Chair, Institute of Biosciences and Biocngincering. Rice University, Houston, Texas

PLENARY PRESENTATION V:

"Computational Simulation Using Field Equations in Biomedical Engineering: A Case Study inRespiratory Flow"Boyd Gatlin, Ph.D., Director, Biological Modeling. Engineering Research Center, Mississippi StaleUniversity, MS State. Mississippi

GENERAL SESSION IV:

#11 GAIT

Utilizing Gaitline Velocity in Dynamic Gait AnalysisJ. Ray, D. Needham and D. SnyderUniversity of Memphis, Memphis, TN, Wright Medical Company. Arlington, TN,and Schering Plough Corporation, Memphis. TN 161

Higher Derivative Determination in Digital Filtering: A Different Cut-Off Frequency StrategyGiannis Giakas and Vasilios BaltzopoulosThe Manchester Metropolitan UniversityAlsager, Cheshire, UK 165

#12 COMPUTERS IN MEDICINE II

Compact Disk Educational Supplements for Biomaterials & Biomedical EducationBrian J. Love, Emmanual Sabourin and Peter K. ShiresVirginia Polytechnic Institute & State University, Blacksburg, VA 171

High Speed Telemedicine Links for Rural Emergency DepartmentsThomas Bickford, Henry S. Hsiao and Peter F. StamfordUniversity of North Carolina at Chapel Hill, Chapel Hill, NC 174

The Electronic Medical Record as a Data WarehouseW.J. Nowack and M.J. NiccolaiUniversity of South Alabama, Mobile, AL 178

#13 BIOCOMPATIBILITY

Osteoblast Cell Response to Hydroxyapatite of Different Heat TreatmentsJ.L. Ong and R. CavinUniversity of Texas Health Science Center, San Antonio, TX 183

Detection of Nonspecific lmmunohistochemical Response Caused by Tissue Necrosis and thePresence of Metallic Wear DebrisShelly Tucci, Zelma Cason, Audrey Tsao and Hamed BenghuzziUniversity of Mississippi Medical Center. Jackson, MS 187

Bioluminescent Bacterial Assays of Implant Corrosion Product ToxicityM. Shettlemore, K. Bundy, F. Mowat and M. GreeneTulane University, New Orleans, LA, and Azur Environmental, Carlsbad, CA 190

PLENARY PRESENTATION VI:

"Blood Pressure Control Systems in the Human Body"Arthur C. Guyton, M.D., Professor of Physiology and Biophysics, University ofMississippi Medical Center, Jackson, Mississippi.

PLENARY PRESENTATION VII:

"Challenges in the Delivery of Clinical Rehabilitation Engineering Services"Harry "Bud" Rizer, Ed.D, Director, Comprehensive Assistive Technology Center, MississippiState University, MS State, Mississippi

PLENARY PRESENTATION VIII:

"The Use of Ergonomic Measures to Prevent and Control Cumulative Trauma Disorders"Lesia L. Crumpton, Ph.D., Director, Ergonomics Laboratory, Department of Industrial Engineering,Mississippi State University, MS State, Mississippi

GENERAL SESSION V:

#14 BIOMATERIALS HI (POLYMERS)

In Vitro Real-Time Aging and Characterization of Poly (UD,L-Lactic Acid)Arlene Koelling, Nicolaas J Ballintyn Abrahan Salehi, Dayna J. Darden, Marc E. Taylor,James Barnavas and D.R. Melton Smith & Nephew Orthopaedics, Memphis, TN. 197

Encapsulating Denture Acrylic Polymers: Inorganic Polymer Films Provide Impermeable BarriersKevin Thome and Gail VittoriUniversity of Illinois at Chicago, Chicago, IL 202

Chemically Designed Inorganic Polymer Filters for Aqueous Mercury SeparationJennifer A. Pierce and Kevin J. ThorneUniversity of Illinois at Chicago, Chicago, IL. 206

Chemically Enhanced Denture AcrylicsKevin Thorne and Gail VittoriUniversity of Illinois at Chicago, Chicago, IL 210

#15 CARDIOVASCULAR

Photolithography As A Tool to Fabricate Polymeric Flow Chambers for In Vitro Cellular ApplicationsMike Bucaro, Jeffrey M. Calvert, Alan, S. Rudolph, Barry Spargo and Ravi KapurUniversity of Virginia, Carlottesville, VA. 217

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Improved 3-D Quantum Mechanical Models of Ion Movements in a Cylindrical Ion-ChannelKang ChengUniversity of Pennsylvania, Philadelphia, PA 220

Hemodynamics of Intracranial Lateral Aneurysms: Flow Simulation StudiesRamalinga Danturthi, Lloyd D. Partridge and Vincent T. TurittoUniversity of Memphis, Memphis,TN. 224

The Analysis of the Influence of Aminophyllimun on the Correlation of Electrocardioand Blood Pressure of the RatsZeping Xie, Siangrong Min and Ruan XiangHuazhong University for Science & Technology, P. R. China 228

#16 IMAGING

Detection and Controlled Manipulation of Coherent Structures in Medical ImagesRaghu Machiraju and Rhonda VickeryMississippi State University, Mississippi State, MS 235

Noninvasive Acoustical Analysis System of Coronary Heart DiseaseFu Jing, Wang Xuemin, Wang Minshi, Li WeiTianjin University, P. R. China 239

Prewhitening of Background Brain Activity Via Autoregressive ModelingIbrahim Ghaleb, Carlos E. Davila and Richard SrebroSouthern Methodist University, Dallas, TX. 242

Model-Free Reconstruction of 3-D Myocardial Strain from Planar Tagged MR Images:Precision and Spatial ResolutionThomas Denney, Jr. and Elliot R. McVeighAuburn University, Auburn, AL. 246

Enhanced Period-Peak Analysis of the Electroencephalogram Using a Fast Sine FunctionRonald E. Barr and Mohammed FerdjallahUniversity of Texas at Austin, Austin, TX. 250

#17 BIOMATERIALS IV (CERAMICS)

A Novel Composite for Bone ReplacementMaria Spence, Marian G. McCordNorth Carolina State University, Raleigh, NC 257

Calcium Phosphate Bioceramics with Improved Properties: Chemical SynthesisKevin Thorne, Philippe D. Saint-Pierre and Brad HeplerUniversity of Illinois at Chicago, Chicago, IL 260

Stress Distribution in Ceramic Crown Forms as a Function of Thickness, Elastic Modulus,and Support SubstrateK. J. Anusavice and Y.L. TsaiUniversity of Florida, Gainesville, FL 264

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Sol-Gel Processing of High-Yield, Dense Alumina BioceramicsMartin Yogya, Philippe D. Saint-Pierre and Kevin ThorneUniversity of Illinois at Chicago, Chicago, IL 268

Effect of HA Coating on the Dental Implants: Past, Present and Future DirectionsHirofumi Kido and Subrata SahaClemson University, Clemson, SC 272

STUDENT PAPER COMPETITION POSTER PRESENTATIONS

#1 BIOCOMPATIBILITYInterrelationship Between Bioceramics and Mice Osteoclast in CultureBeverly Nail, Hamed Benghuzzi, Aaron Puckett, Doug Parsell, Brad Roberts andMichelle TucciUniversity of Mississippi Medical Center, Jackson, MS 279

Stainless Steel Paniculate and Human Tissue ResponsesWes L. Perry, Jack E. Lemons, Richard D. Meyer and Laura ClarkUniversity of Alabama at Birmingham, Birmingham, AL 283

#2 BIOMATERIALS

The Role of Antioxidants-Filled HAL Delivery System on the Fibrous Tissue FormationUsing Adult Rats as a ModelKenneth Butler, Hamed Benghuzzi, Zelma Cason, Michelle Tucci and Aaron PuckettUniversity of Mississippi Medical Center, Jackson, MS 287

Maintenance of Prostatic Function by Means of Exogenous Sustained Delivery ofTestosterone in Castrated Male RatsWillie Cavett, Michelle Tucci, Zelma Cason, Luciano Lemos Audrey Tsao and Hamed BenghuzziUniversity of Mississippi Medical Center, Jackson, MS 293

Compressive Fatigue Comparison of a 3M Glass lonomer Core Build-Up Materialto Ketac-Silver, Z100, and AmalgamLance Dillon, Leon Anderson, Steve Clement, Thomas Horn and Lyle D. ZardiackasUniversity of Mississippi Medical Center, Jackson, MS 297

The Mechanical Properties of Bone Cement as Controlled by Processing Technique:A Critical Review of the LiteratureBenjamin Furman and Subrata SahaClemson University, Clemson, SC 301

Four Point Bend Testing of Calcium Phosphate CoatingsJeannie D. Haman, Krishnan K. Chittur, Daryl E. Crawmer and Linda C. LucasUniversity of Alabama at Birmingham, Birmingham, AL, University of Alabama in Huntsville,Huntsville, AL and Praxair Thermal Spray Systems, Appleton, WI 305

Comparative Evaluation of Surface Characteristics of 21 SRx Titanium AlloyDon Petersen, Ramakrishna Venugopalan. Jack Lemons and Linda LucasUniversity of Alabama at Birmingham, Birmingham. AL 309

The Effect of Autoclave Sterilization on The Cutting Characteristics of Extracted TeethD.E. Parsell, B.M. Stewart, J.R. Barker, T.G. Nick and R.B. JohnsonUniversity of Mississippi Medical Center, Jackson, MS 31 3

TCPL Delivery System: The Role of Sustained Delivery of Testosterone Enanthate on theFine Structure of Seminiferous Tubule of Adult Male RatsMonique Varnado, Michelle Tucci, Zelma Cason. Adel Mohamcd and Hamed BenghuzziUniversity of Mississippi Medical Center. Jackson. MS 316

#3 BIOMECHANICS

Development of an Experimental Testing Protocol to Study Cervical Spine MechanicsHenry B. Faber, Denis J. DiAngelo and Kevin T. FoleyUniversity of Memphis, Memphis, TN, and University of Tennessee at Memphis, Memphis, TN 323

Elongation Patterns of the Collateral Ligaments of the Human KneeChris Chuinard, Dan Harfe, Luis Espinoza. Kevin Thomas and Moshe SolomonowLouisiana State University, New Orleans, LA 327

Influences of the Location of Vertebral "IAR" on Cervical Spine KinematicsThomas H. Jansen and Denis J. DiAngeloUniversity of Tennessee at Memphis, Memphis, TN 33 1

The Effect of Cycling Cadences on the Coordination of Mono- and Bi-Articular MusclesL. Li and G.E. CaldwellUniversity of Massachusetts, Amherst, MA 334

Tensile Properties of Human Achilles TendonKevin M. Shaw and Gladius LewisUniversity of Memphis. Memphis, TN 338

Sensitivity of Elbow Flexion and Extension Moment Anns Relative to the Number andLocation of Wrapping PointsDimitrios K. Tsirakos, Bill Baltzopoulos, Roger Bartlett and Giannis GiakasThe Manchester Metropolitan University, Alsager, UK 342

The Motion Analysis of Lumbar Spine Under Simulated Physiological Load:A New Loading-Measuring SystemYong Ming Zhang, Michael J. Voor, Mei Wang and John R. JohnsonUniversity of Louisville Medical Center, Louisville, KY 346

#4 COMPUTER MODELING

Sensitivity Analysis of a Hybrid Neural Network for Ixicomotor Control in the LampreyBradley G. Brewer and Ranu JungUniversity of Kentucky, Lexington, KY 353

The Assessment of an Endocervical Component in Cervicovaginal Smears with the PAPNET" SystemD. Cabaniss, Z. Cason, L. Lemos and H. BenghuzziUniversity of Mississippi Medical Center. Jackson, MS 357

Oxygen Diffusion in the Pulmonary CapillariesAndreas O. Frank and C.J. Charles ChuongUniversity of Texas at Arlington, Arlington, TX 362

Numerical Evaluation of Myoglobin Facilitated Oxygen Diffusion in the HeartJason D. Gardner and Roy W. SchubertLouisiana Tech University, Ruston, LA 366

Reducing Mesh Size in 3-D Finite Element Modeling of the Field Induced CardiacTransmembrane PotentialQiuju Huang and Frank J. ClaydonUniversity of Memphis, Memphis, TN 370

Modeling Human Left Ventricle and Aortic Function Using VisSimBruce A. Johnson, Richard L. Summers and Thomas P. CathcartMississippi State University, Mississippi State, MS, and University of MississippiMedical Center, Jackson, MS 374

A Realistic, Dynamic Computer-Based Graphical Muscle ModelDavid Levine, Brian A. Garner and Ronald E. Ban-University of Texas at Austin, Austin, TX 378

Modeling a Micromanufactured Open Recess-Tip Oxygen MicroelectrodeJames C. McGuyer, Jr., Michael J. Vasile and Roy W. SchubertLouisiana Tech University, Ruston, LA 384

Modeling Low Frequency Cardiorespiratory Interaction Using Broadband Hypoxic StimulationSachin Mullick, Eugene Bruce, Andrew Cross and Abhijit PatwardhanUniversity of Kentucky, Lexington, KY 386

3D Parallel Computer Simulations of Cardiac Electrical Propagation with Sub-CellularResolutionNicholas F. Pergola and Jack W. BuchananUniversity of Tennessee, Memphis TN 390

A Frequency Dependent Bone Remodeling Algorithm Applied to a Surface RemodelingCantilever Bean SystemM. D. Roberts and R.T. HartTulane University, New Orleans, LA 394

The Application of Fracture Mechanics to Radial KeratotomyDarnell C. Worley, II, Roberto S. Benson and John D. LandesUniversity of Tennessee at Knoxville, Knoxville, TN 398

#5 ERGONOMICS/REHABILITATION

The Use of Ergonomic Measures to Prevent and Control the Occurrence of Cummulative TraumaDisorders (CTDs): Carpal Tunnel Syndrome and Cubital Tunnel SyndromeKari Babski and Lesia L. CrumptonMississippi State University, Mississippi State, MS 407

An Ultrasonic Ranging System for the BlindDavid T. Batarseh, Timothy N. Burcham and Gary M. McFadyenMississippi State University, Mississippi State, MS 411

Command Generation for FES Enhanced Grasping Utilizing Surface EMG in Cervical InjuredWalter Besio, Dejan Tepavac, Peter Tarjan and Ozcan OzdamarUniversity of Miami, Coral Gables, FL 414

Virtual Reality: A Training Tool in the 21st Century for Disabled Persons and Medical StudentsJacqueline A. Chestnut and Lesia L. CrumptonMississippi State University, Mississippi State, MS 41 8

An Adaptive Cognitive Orthosis Shell for Task GuidanceRajesh A. Pagadala and Stan A. NapperLouisiana Tech University, Ruston, LA 422

Design of Speech Illumnia Mentor (SIM) for Teaching Speech to the Hearing ImpairedAli J.A. Soleymani, Martin J. McCutcheon and M. H. SouthwoodUniversity of Alabama at Birmingham, Birmingham, AL 425

#6 INSTRUMENTATION

Skin Cancer Detection Based on NIR Image AnalysisMang Cao, Kyung A. Kang, Chein-I Chang and Duane F. BruleyUniversity of Maryland at Baltimore County, Baltimore, MD 431

Investigation of Flow in the Models of Intracranial Lateral Aneurysms by Particle Image VelocimetryRamalinga S. Danturthi, Lloyd D. Partridge and Vincent T. TurittoUniversity of Memphis, Memphis, TN 437

A New Multi-Harmonic Statistic for the Detection of Steady-State Evoked PotentialsIbrahim Ghaleb, Carlos E. Davila and Richard SrebroSouthern Methodist University, Dallas, TX, and University of Texas Southwestern MedicalCenter at Dallas, Dallas, TX 441

Automatic Filtering Techniques in Biomechanics a Comparison Using Walking DataGiannis Giakas and Vasilios BaltzopoulosThe Manchester Metropolitan University, Alsager, UK 445

Two and Three Dimensional Localization of Deep Vein Thrombosis Using Near InfraredTime Resolved SpectroscopyMark W. Hcmelt, Jamie T. Barnett, Duanc F. Bruley and Kyung A. KangUniversity of Maryland at Baltimore County, Baltimore, MD 449

DSP Based ST-Segment Analysis: The Wavelet ApproachJ.S. Sahambi, S.N. Tandon and R.K.P. BhattIndian Institute of Technology, New Delhi, India 455

An Expert System to Identify Different Classes of Diabetic Cardiac Autonomic Neuropathy (DCAN)T. Srikanth, Stan A. Napper, J. Calloway and M.R.S. ReddyLouisiana Tech University, Ruston, LA, and Indian Institute of Technology, Madras, India 458

Anthropometric Studies Using Digitized Computed Tomography ScansQuyen Tong, Sam Wood, III, Adrian Dupre, Ronald E. Barr, James Burrows and Erin JohnsonUniversity of Texas at Austin, Austin, TX, and Sulzer Orthopedics, Inc., Austin, TX 462

Building Anatomical Models From CT and MRI Scans for Orthopedic PreoperativePlanning and Custom Implant ConstructionSam M. Wood, III, Quyen Tong, Adrian Dupre, Ronald E. Barr and Jeff MastUniversity of Texas at Austin, Austin, TX, and Wayne State University, Detroit, MI 466

#7 ORTHOPEDICS

In Vivo Study of Post-Traumatic Arthritis in Rabbit KneesDavid M. Rosier, Richard V. Baratta, Mark S. Vrahas, Moshe Solomonow and Zhang HongLouisiana State University Medical Center, New Orleans, LA 473

Wear of Co-Cr-Mo Interfaces for 1-20 Year THA RetrievalsMarcus L. Scott, Preston R. Beck, Edwin L. Bradley, Jr., and Jack E. LemonsUniversity of Alabama at Birmingham, Birmingham, AL 477

Galvanic Corrosion in Modular THR's: Correlating In-Vitro Test Results toObservations from Retrieval AnalysesRamakrishna Venugopalan, Terri A. Justice, Linda C. Lucas and Jack E. LemonsUniversity of Alabama at Birmingham, Birmingham, AL 481

AUTHOR INDEX 485

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