Computer Assisted Radiology / Computergestützte Radiologie: Proceedings of the International Symposium / Vorträge des Internationalen Symposiums (English and German Edition)

New imaging technology and more sophisticated image processing systems will have a profound effect on those areas of medicine which are concerned with imaging for diagnosis and therapy planning. Digitally formated data will form the basis of an increasing number of medical imaging modalities. Before the diagnostic imaging department of the future will largely be digital, many problems have still to be solved as regards image quality, costs, and ease of use. The computer and other information science derived methods will contribute towards solving many of the problems in these areas. It is widely expected that there will be an information science derived evolution in imaging for radiology and related departments. Computer assistance may be applied to image generation, e.g. CT, MRI, DR and DSR, storing and transferring of images, and viewing, analysing and interpreting of images. The application of computers to these activities (which characterise radiological departments), may be defined as Computer Assisted Radiology (CAR) . In the main, CAR will promote the transition from analog imaging systems to digital systems, integration of digital imaging modalities through Picture Archiving and Communication Systems (PACS') and the graduated employment of Medica~ Work Stations (MWS) for diagnosis and therapy planning. It will transfer geographically, organisationally and/or mentally isolate imaging activities towards fully integrated multi-imaging modality diagnostic departments. This development will have a considerable impact on patient management, on the medical profession and on the health care system. Front Matter....Pages I-XVIII Front Matter....Pages 1-1 T 2 -Selective Proton Imaging: Representation of Functional States and Molecular Composition of Tissues....Pages 3-8 A Data Base System for Parameter-Selective NMR Imaging Realized in the RWTH Aachen Magnetic Resonance Software System (RAMSES)....Pages 9-14 Correction of Geometrical Distortions in MR-images....Pages 15-23 Preliminary Clinical Evaluation of Magnetic Susceptibility NMR Imaging....Pages 24-24 Decomposition of Multi-Exponential Transverse Magnetization Decays in T 2 -Selective NMR Imaging Employing the Subsystem Evaluation of Ramses....Pages 25-29 A Visualization Technique for Parameter-Selective NMR Imaging....Pages 30-35 Interactive Computer Program for the Selection of Optimum Pulse Sequences in NMR Imaging....Pages 36-36 High Resolution NMR-Imaging with Surface Coils....Pages 37-37 Principles for the Study of Heart Dynamics with Magnetic Resonance Imaging....Pages 38-43 Preprocessing Steps on Fourier MRI Raw Data....Pages 44-49 Representation of vessels in magnetic resonance imaging by topogram and reconstructed vascular tree....Pages 50-55 Heart-Imaging with Magnetic Resonance Tomography Using the Paramagnetic Contrast Medium Gadolinium-DTPA....Pages 56-56 3D Reconstruction for Diverging X-Ray Beams....Pages 59-64 X-Ray Image Chain for A Computed Tomography Approach to Intravenous Coronary Arteriography....Pages 65-69 Dünnschichtcomputertomographie der Schädelbasis....Pages 70-71 CT Videography Using an Optical Computer for Image Reconstruction....Pages 72-80 System Architecture for High Speed Reconstruction in Time-of-Flight Positron Tomography....Pages 83-87 Technical Considerations Concerning Neurological Application of IMP-Spect....Pages 88-96 A Quality Factor for SPECT-Systems....Pages 97-103 Rotierendes Multidetektor-System versus rotierende Gamma-Kamera zur Messung der regionalen Hirndurchblutung....Pages 104-108 Front Matter....Pages 1-1 Verbesserung des Defektnachweises in der SPECT mittels unvollständiger Rotation....Pages 109-114 Der Automatisierte Multisektor-Ultraschallscanner mit Wasservorlauf (Octoson) — Artefakte und Klinische Anwendung....Pages 115-118 Evaluation and Comparison of Various Strategies for Estimating Local Cerebral Glucose Metabolic Rate from Brain Images in Positron Emission Tomography....Pages 119-120 Image Reconstruction with the Use of Transverse Positional Information in Emission Computed Tomography (Ect)....Pages 121-125 Digital Subtraction Myelography — DSM....Pages 129-133 Stellenwert der arteriellen DSA in der vaskulären Diagnostik....Pages 134-138 Darstellung von Dialyseshunts mittels DSA-Technik....Pages 139-142 A New Method Evaluating Vessel Stenosis with the Digital Subtraction Angiography....Pages 143-148 TOMOTRON — a digital system for conventional tomography, first results of the new electronic device....Pages 149-160 Erzeugung und Verarbeitung großflächiger digitaler Röntgenbilder....Pages 163-173 Darstellung von Hirntumoren Mittels Digitaler Röntgenvideotechnik....Pages 174-183 Die Tumorfluoroskopie — ein neues bildgebendes Verfahren in der Bestrahlungsplanung von Hirntumoren....Pages 184-195 Digital Tomosynthesis with a DSA System....Pages 196-197 Berechnung Parametrischer Bilder auf der Basis der Digitalen Angiographie....Pages 198-206 Compression of Dynamics in X-Ray Images by Optimized Linear Filters....Pages 207-212 Möglichkeiten der digitalen Radiographie am Großbildverstärker: Erste Ergebnisse....Pages 213-231 Hybride Histogrammequalisation bei der Digitalisierung von Röntgenbildern mit einem Halbleiter-Zeilensensor....Pages 232-236 Image Restoration in Digital Radiography through Measurements of Optical Transfer Function....Pages 237-238 Quality Factor for Noise Characterization in Digital Radiology Systems....Pages 239-244 Multy Energy Digital Radiology....Pages 245-246 Front Matter....Pages 1-1 A Class of Optimized Algorithms for Digital Tomosynthesis....Pages 247-251 A High Speed High Resolution Image Acquisition System....Pages 252-265 Radiation Reduction during Cardiac Cineangiographic Procedures Using a Video Image Processor....Pages 267-270 Elimination of Nonpivotal Plane Images from X-ray Motion-tomograms....Pages 271-275 A 57cm X-ray Image Intensifier Digital Radiography System....Pages 276-281 Front Matter....Pages 283-283 ACR/NEMA Digital Image Interface Standard (An Illustrated Protocol Overview)....Pages 285-296 Data Compression in Digital Angiography Using Transform Coding....Pages 297-302 Fiber-Optic Transmission Systems for PACS: Network Considerations and Component Design....Pages 303-306 Radiographic Image Archiving System Using a Local Area Network....Pages 307-312 Aufgaben der Datenverarbeitung im Bereich der digitalen Radiografie....Pages 313-313 Information System for Research and Operation in a University Radiology Department....Pages 314-319 Interactive Integrated Modular System for Digital Radiology....Pages 320-328 A Complete Oncological Data Base: Digital Images and Data Synthesis....Pages 329-334 Front Matter....Pages 335-335 Computer Assisted Radiation Therapy....Pages 337-351 Angio-CT in der Diagnostik und therapeutischen Verlaufsbeobachtung von strahlentherapierten AV-Malformationen....Pages 352-357 Reconstruction and Pseudo-3-Dimensional Presentation of the Uterus from Automatic Segmented Transversal Ultrasound Slices — A Fundamental Precondition for Optimizing the Individually Adjusted Therapy Planning in Case of Carcinoma of the Body of the Uterus....Pages 358-370 Radiation Therapy Planning Using Computerized Interactive Portal Simulation....Pages 371-375 Modelling and Computer Simulation of an effective hyperthermia....Pages 376-380 Three-Dimensional Display in Radiation Therapy Treatment Planning....Pages 381-381 Radiotherapy Simulation with the Digital Reconstructed Radiograph....Pages 382-387 Front Matter....Pages 335-335 Three dimensional Planning of Conformation Therapy....Pages 388-394 Treatment Planning with the Multi-Leaf Collimator....Pages 395-400 A Network Solution for Structure Models and Custom Prostheses Manufacturing from CT Data....Pages 403-412 Computer-Assisted Pre-Operative Planning of Orthopedic Reconstructive Surgery....Pages 413-418 A Computerized Femoral Intrameduallary Implant Design Package Utilizing Computed Tomography Data....Pages 419-420 Inaccuracies in Bone Models Derived from Single Energy Quanitative Computed Tomography....Pages 421-423 Computer Aided Diagnosis in Mammography....Pages 427-431 Automated Design of Tissue Compensators for Radiotherapy Using Moiré Contourography....Pages 432-437 Dual Energy CT and Morphometric Analysis of High Resolution CT Images for the Diagnosis of Bone Mineral Diseases....Pages 438-442 CT Diagnosis of Brain Tumours: Semiautomatical Type-Specific Diagnosis with the Help of a Personal Computer Mathematical fundaments and practical application....Pages 443-448 Front Matter....Pages 449-449 Computer Vision in Digital Radiography....Pages 451-460 An Image Processing System for Quality Assurance in Diagnostic Radiology....Pages 461-465 Digital Subtraction and Motion Artefact Suppression....Pages 466-466 A Dynamically Programmed Blood Vessel Enhancing Operator....Pages 467-472 Knowledge-Based Landmarking of Cephalograms....Pages 473-478 Möglichkeiten der postangiographischen Bildbearbeitung zur Verbesser — ung von digitalen Subtraktionsangiogrammen.Erfahrung an 370 Patienten....Pages 479-484 Some High-Efficiency Two-Dimensional Digital Filters with Application to Biomedical Image Processing....Pages 485-490 An Image Analysis Workstation for Ultrasonic Tissue Characterization....Pages 491-495 Tissue Differentiation in MRI by Means of Pattern Recognition....Pages 496-501 Computer-Aided Detection of Pulmonary Nodules....Pages 502-506 Front Matter....Pages 449-449 The Analysis of Cardiac Performance Using Multimodality Image Understanding....Pages 507-518 Model-Guided Labelling of CSF Cavities in Cranial Computed Tomograms....Pages 519-526 The Use of Optical Flow for Left-Ventricular Boundary Detection in Cineangiograms....Pages 527-536 Front Matter....Pages 537-537 Computer Graphics in Radiology....Pages 539-550 Some Uses of Colour Display in NMR Imaging....Pages 551-552 Die Bedeutung der Farbdarstellung in der Kernspin-Tomographie....Pages 553-553 Diagnoseunterstützende Darstellung von NMR-Bildern im Hinblick auf RHO-, T1- und T2-Information....Pages 554-559 3-D Shaded Perspective Display of NMR-Tomograms — The Software Environment....Pages 560-564 A Medical Workstation for Three-Dimensional Display of computed Tomogram Images....Pages 565-571 Combined Use of Different Algorithms for Interactive Surgical Planning....Pages 572-577 Three Dimensional CT Scan Reconstruction at the Mallinckrodt Institute of Radiology....Pages 578-582 Display and Analysis of 4-D Medical Images....Pages 583-592 Design of a Mass Memory Processing System for Fast Computation of Tomographic Images....Pages 593-599 Some Aspects of a Viewing System for Radio Therapy Dose Planning....Pages 600-601 A Medical Graphics System for Diagnosis and Surgical Planning....Pages 602-607 Graphical Aids for Tomographic Image Correlation....Pages 608-611 Solid Modelling and Display Techniques for CT and MR Images....Pages 612-617 Front Matter....Pages 619-619 CAR — Flaggschiff der Medizin....Pages 621-622 Research and Development Activities towards Computer Assisted Radiology in Japan....Pages 623-627 The Third Dimension....Pages 628-634 Front Matter....Pages 619-619 Computer Communications and Graphics for Clinical Radiology....Pages 635-642 The Clinical Experience of CT Diagnosis via Distributed Computing....Pages 644-644 Computer Assisted Imaging for Orthopaedic Surgery....Pages 645-645 Front Matter....Pages 647-647 Direct 3D Reconstruction from Projections with Initially Unknown Angles....Pages 649-653 Reconstruction of the Regional Distribution of the Myocardial Perfusion from a Few X-ray Projections. First Experimental Results....Pages 654-659 Stereoscopic Analysis of Vascular and Neuroanatomical Data with Applications in Functional Stereotactic Neurosurgery....Pages 660-665 Front Matter....Pages 667-667 Human-Computer Interaction in Radiology....Pages 669-678 Design of Interactive Workstations for the Interpretation of Medical Images in Pictorial Information Systems....Pages 679-686 Methodologies and Algorithms for Digital Radiology in the Gepirad Software System....Pages 687-688 Experiments with Man-Machine-Interaction Techniques for Pictorial Information Systems....Pages 689-694 Front Matter....Pages 695-695 Picture Archiving and Communication Systems (PACS) for Radiology....Pages 697-715 Evaluation and Comparison of Various Strategies for Estimating Local Cerebral Glucose Metabolic Rate from Brain Images in Positron Emission Tomography....Pages 716-720 The 1984–85 Teleradiology Field Trial and Archive Study....Pages 721-721 Back Matter....Pages 722-724