Abstract：
:In this article, we describe the development and validation of an automatic algorithm to segment brain from extracranial tissues, and to classify intracranial tissues as cerebrospinal fluid (CSF), gray matter (GM), white matter (WM) or pathology. T1 weighted spin echo, dual echo fast spin echo (T2 weighted and proton density (PD) weighted images) and fast Fluid Attenuated Inversion Recovery (FLAIR) magnetic resonance (MR) images were acquired in 100 normal patients and 9 multiple sclerosis (MS) patients. One of the normal studies had synthesized MS-like lesions superimposed. This allowed precise measurement of the accuracy of the classification. The 9 MS patients were imaged twice in one week. The algorithm was applied to these data sets to measure reproducibility. The accuracy was measured based on the synthetic lesion images, where the true voxel class was known. Ninety-six percent of normal intradural tissue voxels (GM, WM, and CSF) were labeled correctly, and 94% of pathological tissues were labeled correctly. A low coefficient of variation (COV) was found (mean, 4.1%) for measurement of brain tissues and pathology when comparing MRI scans on the 9 patients. A totally automatic segmentation algorithm has been described which accurately and reproducibly segments and classifies intradural tissues based on both synthetic and actual images.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Erickson BJ,Avula RTdoi
10.1007/BF03168729subject
Has Abstractpub_date
1998-05-01 00:00:00pages
74-82issue
2eissn
0897-1889issn
1618-727Xjournal_volume
11pub_type
杂志文章abstract：:Electronic imaging clinical implementation strategies and principles need to be developed as we move toward replacement of film-based radiology practices. During an 8-month period (1998 to 1999), an Electronic Imaging Clinical Implementation Work Group (EICIWG) was formed from sections of our department: Informatics L...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168749
更新日期：1999-05-01 00:00:00
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：: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：:The need for tools to monitor imaging-related radiation has grown dramatically in recent years. RADIANCE, a freely available open-source dose-monitoring tool, was developed in response to the need for an informatics solution in this realm. A number of open-source as well as commercial solutions have since been develop...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9570-2
更新日期：2013-08-01 00:00:00
abstract：:Transitioning to a filmless department is no easy task, especially at a large academic medical center. At the University of Medicine and Dentistry of New Jersey-New Jersey Medical School, a phased modality integration schedule was implemented to allow the technical and clinical staff to gradually absorb all of the cha...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5044-7
更新日期：2002-01-01 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：:A series of artifact images, obtained over 5 years of performance testing, of both computed radiography (CR) and integrated digital radiographic X-ray imaging detectors are presented. The images presented are all either flat field or test object images and show artifacts previously either undescribed in the existing l...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-008-9109-0
更新日期：2009-08-01 00:00:00
abstract：:Content-based medical image retrieval (CBMIR) is a powerful resource to improve differential computer-aided diagnosis. The major problem with CBMIR applications is the semantic gap, a situation in which the system does not follow the users' sense of similarity. This gap can be bridged by the adequate modeling of simil...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-015-9809-1
更新日期：2016-02-01 00:00:00
abstract：:Widespread integration of networking technology will change the hospital imaging environment, making computational, archiving, and film production services available to network-connected modalities. This change will be reflected in the designs of the image acquisition modalities themselves. A view of the future is pre...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168154
更新日期：1991-11-01 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：:With the introduction of direct digital radiography into clinical practice, there are opportunities to provide faster and more reliable ways of performing traditional radiological tasks. A technique was developed for evaluating and measuring scoliosis, which involves the computerized stitching of a radiograph of the t...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5033-x
更新日期：2002-01-01 00:00:00
abstract：:The efficacy of two medical-grade, self-calibrating, gray scale displays were compared with regard to impact on sensitivity and specificity for the detection of interstitial lung disease (ILD) on computed radiographs (CR). The displays were a 5-megapixel (MP) cathode ray tube (CRT) device and a 3-MP liquid crystal dis...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-004-1013-7
更新日期：2004-09-01 00:00:00
abstract：:Radiology 2.0: One Night in the ED is an app that presents users with scrollable CT images for common scenarios found in any Emergency Department (ED). A great tool for a junior resident before starting call, it allows the user to build confidence by experiencing a simulated environment of viewing all images of a case...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-015-9797-1
更新日期：2015-08-01 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：:Emission tomographic image reconstruction is an ill-posed problem due to limited and noisy data and various image-degrading effects affecting the data and leads to noisy reconstructions. Explicit regularization, through iterative reconstruction methods, is considered better to compensate for reconstruction-based noise...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-015-9853-x
更新日期：2016-06-01 00:00:00
abstract：:Digitally created visual images of pertinent patient data have been integrated with text information to formulate a visual evaluation and summary sheet (VESS) using computer processing. The VESS incorporates images of a patient's physical appearance, radiological images, pharmacokinetic graphs, and text information in...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168369
更新日期：2000-05-01 00:00:00
abstract：:We propose a joint segmentation and groupwise registration method for dynamic cardiac perfusion images that uses temporal information. The nature of perfusion images makes groupwise registration especially attractive as the temporal information from the entire image sequence can be used. Registration aims to maximize ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9497-z
更新日期：2013-04-01 00:00:00
abstract：:Academic medical centers, in general, and radiation oncology research, in particular, rely heavily on custom software tools and applications. The code development is typically the responsibility of a single individual or at most a small team. Often these individuals are not professional programmers but physicists, stu...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-009-9271-z
更新日期：2011-02-01 00:00:00
abstract：:Sacroiliac (SI) joint dislocations and sacral fractures of the pelvis can be stabilized by SI screws; however, screw insertion into a sacral isthmus region is risky for the adjacent neurovascular structures. Therefore, shape analyses of general SI screw corridors or safety zones are of great surgical interest; however...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-010-9327-0
更新日期：2011-08-01 00:00:00
abstract：:Understanding the scan patterns radiologists use to view medical images is critical to the design of image viewing devices. In this study, an eyetracker, a device for recording eye and head movement, was used to determine the scan patterns during the interpretation of single and multiple computed tomographic (CT) exam...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168120
更新日期：1990-11-01 00:00:00
abstract：:In this paper, we compare five common classifier families in their ability to categorize six lung tissue patterns in high-resolution computed tomography (HRCT) images of patients affected with interstitial lung diseases (ILD) and with healthy tissue. The evaluated classifiers are naive Bayes, k-nearest neighbor, J48 d...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-008-9158-4
更新日期：2010-02-01 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：:Under typical dark chest radiography reading room conditions, a radiologist's pupils contract and dilate as their visual focus intermittently shifts between the high luminance monitor and the darker background wall, resulting in increased visual fatigue and degradation of diagnostic performance. A controlled increase ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9459-5
更新日期：2012-08-01 00:00:00
abstract：:Despite the rapid progress made in the electronic design of imaging work stations for medicine, much less effort has gone into the design of environments in which such systems will be used. Based on studies of radiologist film reading sessions, considerable time will be spent working at such viewing systems. If the ro...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168035
更新日期：1989-08-01 00:00:00
abstract：:The authors developed a temporal subtraction scheme based on a nonlinear geometric warping technique to assist radiologists in the detection of interval changes in chest radiographs obtained on different occasions. The performance of the current temporal subtraction scheme is reasonably good; however, severe misregist...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168846
更新日期：1999-05-01 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：:Voice recognition (VR) and picture archiving and communication system (PACS) both have advantages and disadvantages in radiologic practice. We describe a fully integrated VR/PACS system running on a single platform. Integration optimizes the positive features of both systems and creates a synergy that is not otherwise...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03190351
更新日期：2001-06-01 00:00:00
abstract：:Optimization of brightness distribution in the template used for detection of cancerous masses in mammograms by means of correlation coefficient is presented. This optimization is performed by the evolutionary algorithm using an auxiliary mass classifier. Brightness along the radius of the circularly symmetric templat...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-011-9402-1
更新日期：2012-02-01 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：:The increasing use of medical checklists to promote patient safety raises the question of their utility in diagnostic radiology. This study evaluates the efficacy of a checklist-style reporting template in reducing resident misses on cervical spine CT examinations. A checklist-style reporting template for cervical spi...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9703-2
更新日期：2014-10-01 00:00:00
