Abstract：
:The purpose of this research was to determine if digitization and the application of various compression routines to digital images of temporomandibular joint (TMJ) radiographs would diminish observer accuracy in the detection of specific osseous characteristics associated with TMJ degenerative joint disease (DJD). Nine observers viewed 6 cropped hard-copy radiographic films each of 34 TMJs (17 radiographic series). Regions of interest measuring 2 in x 2 in were digitized using an 8-bit scanner with transparency adapter at 300 dpi. The images were placed into a montage of 6 images and stored as tagged image file format (TIFF), compressed at 4 levels (25:1, 50:1, 75:1, and 100:1) using a wavelet algorithm, and displayed to the observers on a computer monitor. Their observations regarding condylar faceting, sclerosis, osteophyte formation, erosion, and abnormal shape were analyzed using ROC. Kappa values were determined for relative condylar size and condylar position within the glenoid fossa. Indices were compared using ANOVA at a significance level of P < .05. Although significant and substantial observer variability was demonstrated, there were no statistically significant differences between image modalities, except for condylar position, in which TIFF and wavelet (at all compression ratios) performed better than the original image. For faceting, wavelet 100:1 performed better than radiographic film images. Little actual image file reduction was achieved at compression ratios above 25:1.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Trapnell CJ,Scarfe WC,Cook JH,Silvejra AM,Regennitter FJ,Haskell BSdoi
10.1007/BF03168339subject
Has Abstractpub_date
2000-02-01 00:00:00pages
38-45issue
1eissn
0897-1889issn
1618-727Xjournal_volume
13pub_type
杂志文章abstract：:Computed radiography (CR) has various advantages such as dynamic range. Diagnostic accuracy with CR using reduced radiation dose is considered comparable with that of conventional film-screen radiography in diagnosing apparent chest abnormalities. In addition to reducing the radiation dose, delineation of the various ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168076
更新日期：1995-02-01 00:00:00
abstract：:This is the second article of our series for radiologists and imaging scientists on displaying, manipulating, and analyzing radiologic images on personal computers (PCs). The first article discussed the digital image data file, standard PC graphic file formats, and various methods for importing radiologic images into ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168488
更新日期：1993-08-01 00:00:00
abstract：:An integrated picture archiving and communication system (PACS) is a large investment in both money and resources. With all of the components and systems contained in the PACS, a methodical set of protocols and procedures must be developed to test all aspects of the PACS within the short time allocated for contract co...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168789
更新日期：1999-05-01 00:00:00
abstract：:We introduce the concept, benefits, and general architecture for acquiring, storing, and displaying digital photographs along with medical imaging examinations. We also discuss a specific implementation built around an Android-based system for simultaneously acquiring digital photographs along with portable radiograph...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-013-9579-6
更新日期：2013-10-01 00:00:00
abstract：:Over the past few years, an increase in digitalization of radiology departments can be seen, which has a large impact on the work of the radiologists. This impact is not only demonstrated by the increased use of digital images but also by changing demands on the whole reading environment. In this study, we evaluated t...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-0629-1
更新日期：2006-01-01 00:00:00
abstract：:Cerebral microbleeds, which are small focal hemorrhages in the brain that are prevalent in many diseases, are gaining increasing attention due to their potential as surrogate markers of disease burden, clinical outcomes, and delayed effects of therapy. Manual detection is laborious and automatic detection and labeling...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-018-0146-z
更新日期：2019-10-01 00:00:00
abstract：:Rather than perpetuating the struggle, "who controls the PACS, Radiology or Information Technology (IT)," Community Hospital of the Monterey Peninsula (CHOMP) took the approach of incorporating IT support within the Radiology Department. CHOMP faced the challenge of staffing Radiology computer systems and networks by ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5048-3
更新日期：2002-01-01 00:00:00
abstract：:We introduce a set of worksheets to facilitate standardized comparisons among scheduling systems, hospital information systems, radiology information systems, and picture archiving and communication systems vendors. For each system category, we provide worksheets to evaluate the features, performance, installation req...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168605
更新日期：1996-08-01 00:00:00
abstract：:Rapid advances are changing the technology and applications of multidetector computed tomography (CT) scanners. The major increase in data associated with this new technology, however, breaks most commercial picture archiving and communication system (PACS) architectures by preventing them from delivering data in real...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-0925-9
更新日期：2006-01-01 00:00:00
abstract：:A computer algorithm for information retrieval from an electronic teaching file has been developed. This index enables the user to retrieve cases from a teaching file, based on the input of a combination of features. The algorithm is based on nearest neighbor analysis, and is programmed in the "C" language. A teaching...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167602
更新日期：1990-08-01 00:00:00
abstract：:In this report, a novel technique is proposed for computer-aided automatic extraction of microcalcifications in a digital mammogram. First, the microcalcifications are detected by morphological filtering, followed by entropy-based thresholding. Next, the microcalcifications are segmented by computing regional watershe...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167642
更新日期：2000-05-01 00:00:00
abstract：:As resources in the healthcare environment continue to wane, leaders are seeking ways to continue to provide quality care bounded by the constraints of a reduced budget. This manuscript synthesizes the experience from a number of institutions to provide the healthcare leadership with an understanding of the value of a...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-019-00293-1
更新日期：2020-02-01 00:00:00
abstract：:The standard definition of high-risk individuals for lung cancer was not uniform and the value of chest digital radiography (DR) in lung cancer screening was still unproven. The aim of this study was to assess whether the original questionnaire named as "Self-evaluation Scoring Questionnaire for High-risk Individuals ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9468-4
更新日期：2013-02-01 00:00:00
abstract：:In the UK, physicists and radiographers perform routine quality control (QC) of digital mammography equipment at daily, weekly and monthly intervals. The tests performed and tolerances are specified by standard protocols. The manual nature of many of the tests introduces variability due to the positioning of regions o...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9759-z
更新日期：2015-10-01 00:00:00
abstract：:The authors present a unique medical technical application for illustrating the success and/or failure of the physiological healing process as a dynamically morphed video. Two examples used in this report include the healing of a severely fractured humerus from an explosion in Iraq and the other of dramatic tissue des...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-1050-5
更新日期：2007-09-01 00:00:00
abstract：:We propose the design of a teaching system named Interpretation and Diagnosis of Mammograms (INDIAM) for training students in the interpretation of mammograms and diagnosis of breast cancer. The proposed system integrates an illustrated tutorial on radiology of the breast, that is, mammography, which uses education te...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-008-9111-6
更新日期：2009-08-01 00:00:00
abstract：:In this study, we sought to estimate the patient radiation doses in the digital radiography X-ray examinations conducted in a large hospital. The patient exposure factors and kerma-area product (PKA) were retrospectively recorded via the Digital Imaging and Communications in Medicine (DICOM) header for 547 patients. T...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00199-y
更新日期：2020-02-01 00:00:00
abstract：:The Fuhrman nuclear grade is a recognized prognostic factor for patients with clear cell renal cell carcinoma (CCRCC) and its pre-treatment evaluation significantly affects decision-making in terms of management. In this study, we aimed to assess the feasibility of a combined approach of radiomics and machine learning...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00336-y
更新日期：2020-08-01 00:00:00
abstract：:The objective of this study was to determine the differential cost between film-based radiology and a hospital-wide picture archiving and communication system (PACS) implemented all at once. The cash flow and running costs of PACS and film-based operation were measured over an 8-year time horizon. When the hospital-wi...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-0632-6
更新日期：2006-01-01 00:00:00
abstract：:Automatic bone segmentation of computed tomography (CT) images is an important step in image-guided surgery that requires both high accuracy and minimal user interaction. Previous attempts include global thresholding, region growing, region competition, watershed segmentation, and parametric active contour (AC) approa...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-009-9210-z
更新日期：2010-12-01 00:00:00
abstract：:Digital acquisition of data from the various imaging modalities for input to a picture archiving and communication system (PACS) is discussed. Essential features for successful clinical implementation including Digital Imaging and Communications in Medicine (DICOM) compliance, radiology information system (RIS)/hospit...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168809
更新日期：1999-05-01 00:00:00
abstract：:Monitoring patients' imaging-related radiation is currently a hot topic, but there are many obstacles to accurate, patient-specific dose estimation. While some, such as easier access to dose data and parameters, have been overcome, the challenge remains as to how accurately these dose estimates reflect the actual dose...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9567-2
更新日期：2013-08-01 00:00:00
abstract：:While uncertainty is ubiquitous in medical practice, minimal work to date has been performed to analyze the cause and effect relationship between uncertainty and patient outcomes. In medical imaging practice, uncertainty in the radiology report has been well documented to be a source of clinician dissatisfaction. Befo...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-018-0057-z
更新日期：2018-08-01 00:00:00
abstract：:Even though facilities using computed radiography (CR) operate in an electronic environment, the production of hard-copy films is still necessary during the transition period, as well as for particular needs following complete implementation. We have implemented a quantitative technique to match the response of printe...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167622
更新日期：2000-05-01 00:00:00
abstract：:Complex deformities of the spine, like scoliosis, are evaluated more precisely using stereo-radiographic 3D reconstruction techniques. Primarily, it uses six stereo-corresponding points available on the vertebral body for the 3D reconstruction of each vertebra. The wireframe structure obtained in this process has poor...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-015-9841-1
更新日期：2016-04-01 00:00:00
abstract：:Devising a method that can select cases based on the performance levels of trainees and the characteristics of cases is essential for developing a personalized training program in radiology education. In this paper, we propose a novel hybrid prediction algorithm called content-boosted collaborative filtering (CBCF) to...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9678-z
更新日期：2014-08-01 00:00:00
abstract：PURPOSE:To identify practical issues surrounding delivering digital images from picture archiving and communication systems (PACS) for research and teaching purposes. The complexity of Digital Imaging and Communications in Medicine (DICOM) access methods, security, patient confidentiality, PACS database integrity, port...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03190313
更新日期：2001-06-01 00:00:00
abstract：:The purpose of this study was to investigate the possible effects of section thickness on volume estimations obtained by cone beam computed tomography. Intraosseal cavities representing bone defects on vestibular sides of the two dry sheep mandibles were scanned by a cone beam computed tomography system. Consecutive s...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9480-8
更新日期：2013-02-01 00:00:00
abstract：:The authors present an adaptation of the macro recording feature on the Siemens Magic View 1000 workstation, which, with the click of one button, launches a macro that performs 3 clinically useful image manipulations. Using a Magic View 1004 Siemens unix workstation, the following Macro sequence was programmed: (1) se...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5078-x
更新日期：2002-01-01 00:00:00
abstract：:We quantitatively investigate the influence of image registration, using open-source software (3DSlicer), on kinetic analysis (Tofts model) of dynamic contrast enhanced MRI of early-stage breast cancer patients. We also show that registration computation time can be reduced by reducing the percent sampling (PS) of vox...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00374-6
更新日期：2020-10-01 00:00:00
