Abstract：
:Architectural distortion is an important sign of breast cancer, but because of its subtlety, it is a common cause of false-negative findings on screening mammograms. This paper presents methods for the detection of architectural distortion in mammograms of interval cancer cases taken prior to the detection of breast cancer using Gabor filters, phase portrait analysis, fractal analysis, and texture analysis. The methods were used to detect initial candidates for sites of architectural distortion in prior mammograms of interval cancer and also normal control cases. A total of 4,224 regions of interest (ROIs) were automatically obtained from 106 prior mammograms of 56 interval cancer cases, including 301 ROIs related to architectural distortion, and from 52 prior mammograms of 13 normal cases. For each ROI, the fractal dimension and Haralick's texture features were computed. Feature selection was performed separately using stepwise logistic regression and stepwise regression. The best results achieved, in terms of the area under the receiver operating characteristics curve, with the features selected by stepwise logistic regression are 0.76 with the Bayesian classifier, 0.73 with Fisher linear discriminant analysis, 0.77 with an artificial neural network based on radial basis functions, and 0.77 with a support vector machine. Analysis of the performance of the methods with free-response receiver operating characteristics indicated a sensitivity of 0.80 at 7.6 false positives per image. The methods have good potential in detecting architectural distortion in mammograms of interval cancer cases.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Rangayyan RM,Banik S,Desautels JEdoi
10.1007/s10278-009-9257-xsubject
Has Abstractpub_date
2010-10-01 00:00:00pages
611-31issue
5eissn
0897-1889issn
1618-727Xjournal_volume
23pub_type
杂志文章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：: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：:Information infrastructures involve the notion of a shared, open infrastructure, constituting a space where people, organizations, and technical components associate to develop an activity. The current infrastructure for medical image sharing, based on PACS/DICOM technologies, does not constitute an information infras...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00243-x
更新日期：2020-02-01 00:00:00
abstract：:Scheduling of CT and MR exams requires reasonable estimates for expected scan duration. However, scan-time variability and efficiency gains from combining multiple exams are not quantitatively well characterized. In this work, we developed an informatics approach to quantify typical duration, duration variability, and...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00252-w
更新日期：2020-02-01 00:00:00
abstract：:Morphometric analysis of nuclei is crucial in cytological examinations. Unfortunately, nuclei segmentation presents many challenges because they usually create complex clusters in cytological samples. To deal with this problem, we are proposing an approach, which combines convolutional neural network and watershed tra...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00200-8
更新日期：2020-02-01 00:00:00
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). Ni...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168339
更新日期：2000-02-01 00:00:00
abstract：:This article describes the design and implementation of a low-cost image archival and management solution on a radiology network consisting of UNIX, IBM personal computer-compatible (IBM, Purchase, NY) and Macintosh (Apple Computer, Cupertino, CA) workstations. The picture archiving and communications system (PACS) is...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168688
更新日期：1997-08-01 00:00:00
abstract：:To solve the problems of image displays in filmless radiology conferences for the purpose of teaching, we made an experimental design of a conference system with dual 50-in. plasma monitors for displaying larger images and a shared folder containing shortcuts to images for quick display during conferences on the deskt...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-007-9095-7
更新日期：2009-12-01 00:00:00
abstract：:The strategic development and deployment of a health management information technology infrastructure is discussed from two perspectives for radiologists and for other medical technologists: the integrated delivery system (IDS) perspective and a total quality-management (TQM) perspective. On the one hand, an IDS persp...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168176
更新日期：1998-11-01 00:00:00
abstract：:The purpose of this study is to assess the accuracy, precision, and rapidity of liver volumes calculated by using a freehand electromagnetic pen tablet contourtracing method as compared with the volumes calculated by using the standard optical mouse contourtracing method. The imaging data used as input for accuracy an...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-010-9291-8
更新日期：2011-04-01 00:00:00
abstract：:The goal of this study is to evaluate the efficacy of deep convolutional neural networks (DCNNs) in differentiating subtle, intermediate, and more obvious image differences in radiography. Three different datasets were created, which included presence/absence of the endotracheal (ET) tube (n = 300), low/normal positio...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-017-9980-7
更新日期：2017-08-01 00:00:00
abstract：:The architectural design and construction of a new imaging department is one of the most complex challenges in healthcare architecture. When a client also plans a simultaneous change in basic operating system technology from film-based to filmless imaging, the challenge for both hospital management and the facility/te...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168779
更新日期：1999-05-01 00:00:00
abstract：:Managing and optimizing radiation dose has become a core problem for the CT community. As a fundamental step for dose optimization, accurate and computationally efficient dose estimates are crucial. The purpose of this study was to devise a computationally efficient projection-based dose metric. The absorbed energy an...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-016-9869-x
更新日期：2016-10-01 00:00:00
abstract：:This manuscript reviews Touch Surgery, a novel online platform geared towards innovating professional training for surgical procedures. In other industries, such as aviation, simulation has already been shown to reduce costs and improve outcomes in crisis (JETS 3(4):348-352, 2010). Studies involving simulation-based l...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-018-0102-y
更新日期：2018-10-01 00:00:00
abstract：:Extensive research efforts have been devoted to the feasibility of picture archiving and communication systems (PACS) in recent years. The advantages of PACS are numerous but mainly include reduced cost and improvement in the operational efficiency of a PACS-based radiology department. In digital radiography, images a...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168839
更新日期：1997-11-01 00:00:00
abstract：:Considerable debate within the medical community has focused on the optimal location of information technology (IT) support groups on the organizational chart. The challenge has been to marry local accountability and physician acceptance of IT with the benefits gained by the economies of scale achieved by centralized ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-009-9196-6
更新日期：2009-06-01 00:00:00
abstract：:Functional near-infrared spectroscopy (fNIRS) is a relatively new imaging modality in the functional neuroimaging research arena. The fNIRS modality non-invasively investigates the change of blood oxygenation level in the human brain utilizing the transillumination technique. In the last two decades, the interest in t...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-020-00387-1
更新日期：2020-10-01 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：:New consumer technologies and interoperability standards have dated the first standardized curriculum for imaging informatics fellowships suggested by the Society for Computer Applications in Radiology (SCAR) in 2004 (Journal of digital imaging 17(4):244-248, 2004). Last year, analysis from this institution characteri...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00292-2
更新日期：2020-04-01 00:00:00
abstract：:The aim of this study was to design a tele-radiology imaging system for rapid emergency care via mobile networks and to assess the diagnostic feasibility of the Joint Photographic Experts Group 2000 (JPEG2000) radiological imaging using portable devices. Rapid patient information and image exchange is helpful to make ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-010-9335-0
更新日期：2011-08-01 00:00:00
abstract：:In Hokkaido University Hospital, the large-scale PACS has been in clinical use since 1989. We developed various kinds of imaging terminals such as the image input terminal and the image display terminal for this system. This article presents detailed description of these terminals. ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168146
更新日期：1991-11-01 00:00:00
abstract：:The main goal of this study was to determine the reproducibility of the reading of wrist trauma case radiographs using three different media: laser film, a picture archiving and communication systems (PACS) workstation, and paper with an optimized layout. The study was conducted retrospectively in 200 consecutive pati...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9613-8
更新日期：2013-12-01 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：:For a region-wide teleradiology network in Germany a vendor-independent Uptime-server concept was defined. The Uptime-server was realized for the availability check and prospective error-detection of the emergency teleradiology servers and clients based on encrypted digital imaging and communication in medicine (DICOM...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-1044-3
更新日期：2007-12-01 00:00:00
abstract：:Increasing radiologic exam volume and complexity necessitates leveraging advanced hardware solutions to optimize workflow efficiency. We evaluated radiologist satisfaction of a programmable 13-button non-conventional mouse compared to a conventional three-button mouse in daily interpretation workflow following a brief...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-018-0094-7
更新日期：2018-12-01 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：:The purpose of this study was to evaluate stereoscopic perception of low-dose breast tomosynthesis projection images. In this Institutional Review Board exempt study, craniocaudal breast tomosynthesis cases (N = 47), consisting of 23 biopsy-proven malignant mass cases and 24 normal cases, were retrospectively reviewed...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9648-x
更新日期：2014-04-01 00:00:00
abstract：:The recognizability of facial images extracted from publically available medical scans raises patient privacy concerns. This study examined how accurately facial images extracted from computed tomography (CT) scans are objectively matched with corresponding photographs of the scanned individuals. The test subjects wer...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-016-9932-7
更新日期：2017-04-01 00:00:00
abstract：:Perfusion CT of the liver typically involves scanning the liver at least 20 times, resulting in a large radiation dose. We developed and validated a simplified model of tumor blood supply that can be applied to standard triphasic scans and evaluated whether this can be used to distinguish benign and malignant liver le...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9725-9
更新日期：2015-04-01 00:00:00
abstract：:Excessive cephalocaudal anatomic (Z-axis) coverage can lead to unnecessary radiation exposure to a patient. In this study, an automated computing model was developed for identifying instances of potentially excessive Z-axis coverage with abdomen-pelvis examinations. Eight patient and imaging attributes including patie...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9743-7
更新日期：2015-06-01 00:00:00
