Showing papers in "Computerized Medical Imaging and Graphics in 2003"

TL;DR: A computer-aided diagnosis system for pigmented skin lesions, with solutions for the lesion boundary detection and for the quantification of the degree of symmetry, and it is demonstrated that the scheme outperforms methods based on the principal component decomposition.

TL;DR: A new 3D/2D registration method for vertebrae of the scoliotic spine is proposed, using two conventional radiographic views (postero-anterior and lateral), and a priori global knowledge of the geometric structure of each vertebra, which efficiently provides accurate 3D reconstruction of each scoliotics vertebra and also provides accurateknowledge of the 3D structure of the whole scoliosis spine.

TL;DR: A dedicated PACS security server is proposed that will act as an image authority to check and certify the image origin and integrity upon request by a user, and meanwhile act also as a secure DICOM gateway to the outside connections and a PACS operation monitor for HIPAA supporting information.

TL;DR: The trilinear interpolation method is shown to remove voxel effects and to produce reliable chord-length distributions across image regions and is recommended for use with digital medical images needed for internal radiation transport simulations.

TL;DR: Computer assisted bone age assessment (BAA) integrated with a clinical PACS is described and based on currently analyzed image data in the hand atlas, the standard deviation of the assessment bone age does not exceed 1 yr of age.

TL;DR: A three-dimensional warping registration algorithm was created and compared to rigid body registration of magnetic resonance (MR) pelvic volumes including the prostate and both visual and numerical evaluation methods showed that warping consistently worked better than rigid body.

TL;DR: This study presents an automatic method for 3D reconstruction of vascular trees using computed-tomography angiographic (CTA) images with the emphasis given to the skeleton pruning and tree construction algorithms.

TL;DR: A fuzzy logic-based color histogram analysis technique is presented for discriminating benign skin lesions from malignant melanomas in dermatology clinical images and results are reported for the fuzzy ratio and fusion with a previously determined percent melanoma color feature.

TL;DR: Recent efforts in industry and the academic community to harmonize and improve the integration of medical images with patient record, with the promotion of new standards and better definitions of clinical workflows and standard mechanism of integration of different types of data into unified data models, has facilitated the deployment of modern EMR.

TL;DR: An automatic method to characterize mice bone architecture from three-dimensional (3D) microtomographic images was developed to study the response of the C57BL/6J@Ico strain of mice submitted to a model of bone loss by hind limb unloading produced by tail-suspension.

TL;DR: This paper reviews three large-scale enterprise PACS/image distribution systems in USA, Germany, and South Korean and describes one current system under development in designing a healthcare enterprise level chest tuberculosis screening in Hong Kong.

TL;DR: This paper summarizes some of the developments in the design and implementation of a reliable PACS that insures maximum uptime for end users while preserving the integrity of the PACS data and making it available during downtime events and details strategy for developing proper clinical workflow contingency procedures when a scheduled downtime event occurs.

TL;DR: With the many potentials of further development, a more comprehensive education program on PACS is called for and a PACS simulator as a standalone training and research tool is deemed necessary.

TL;DR: This paper reviews a hospital-integrated PACS image data flow and typical diagnostic display software architecture, and discusses some Web technologies and Web-based image application server architectures, as well as image accessing and viewing methods in these architectures.

TL;DR: This paper describes an ongoing initiative that attempts to bring together healthcare professionals and industry experts to coordinate the implementation of standards in ways that enhance operational efficiency and the quality of patient care.

TL;DR: The experience suggests that it is absolutely essential to integrate the PACS into the patient's electronic medical record in order to maximize efficiency and clinical effectiveness of the system.

TL;DR: A pictorial review computed tomography anatomy of pterygopalatine fossa and its communications is presented and the diagnostic difficulties in determining the intercompartmental spread is discussed.

TL;DR: A novel approach for distortion correction is proposed which, by combining both global and local correction methods allows good image quality in relatively acceptable time.

TL;DR: An efficient, object-oriented implementation of 3D nonlinear transformations to the Visualization Toolkit that can be applied to a wide variety of data types, including images and polygonal meshes is contributed.

TL;DR: Trans-urethral ultrasound (TUUS) is a new interactive, real-time 3D imaging method that may be effective in therapy-guidance during and after TIPPB and suggests the possibility of TUUS becoming the exclusive imaging method in prostate cancer brachytherapy.

TL;DR: This paper will discuss the techniques for developing an interactive-based teaching tool, a case study of its implementation, and a perspective for applying this approach to an online PACS training tool.

TL;DR: Performance evaluation of principal component analysis (PCA) of dynamic F-18-FDG-PET studies of patients with recurrent colorectal cancer shows that PCA supports the visual interpretation of dynamic PEG studies, facilitates the application of compartment modeling and is a promising quantification technique.

TL;DR: Although the concept of picture archiving and communications systems (PACS) was developed in Europe during the latter part of the 1970s, no working system was completed at that time and wide-area PACS covering several health care institutions in a region are now in the process of being implemented in a number of European countries.

TL;DR: The goal is to obtain an accurate and reliable computerised radiographic X-ray absorptiometry system for automatic bone mass assessment that can be easily applied to the population.

TL;DR: MRI was superior to CT in patients with MEO in terms of estimating the anatomic extent of the disease, but it cannot be used for monitoring therapy.

TL;DR: Diffusion imaging appears to be a promising sequence to evaluate the changes in the brain tissue in Wilson's disease at least by revealing two different patterns.

TL;DR: CT and MR findings of a case of brain aspergillosis with histopathologic correlation are reported and Histopathologic examination of the autopsy specimen showed multiple hemorrhagic infarcts in the CMJ with remaining dilated cortical vessels that had been thrombosed by as pergillus hyphae.

TL;DR: The results confirm the efficiency of the proposed method in extracting the medial curve of vessels, which is essential for the computation of quantitative parameters.

TL;DR: It is seen that PACS has gradually become a necessary tool for daily clinical operation, and its future trends will be in the development of research methods to fully utilize its large image database for better healthcare delivery.

TL;DR: First, history of PACS in Japan from 1982 to 2002 has been investigated, and baseline studies of HIS/RIS/PACS effectiveness have been carried out to assess quantitatively the PACS merit.