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

authors： Bhajammanavar VM,Keong KC,Krishnan SM

更新日期：2000-05-01 00:00:00

abstract：:The purpose of this communication is to report on the testing of the disaster recovery capability of our hierarchical storage management (HSM) system. Disaster recovery implementation is a requirement of every mission-critical information technology project. Picture archiving and communications systems (PACS) certainl...

journal_title：Journal of digital imaging

authors： Avrin DE,Andriole KP,Yin L,Gould R,Arenson RL

更新日期：2000-05-01 00:00:00

abstract：:Compared to traditional film radiography, digital radiography is believed to improve workflow and patient throughput. Digital radiography permits the technologist to immediately view the quality of the film directly at the modality. Additional workflow improvements, therefore, should be achieved with the integration o...

journal_title：Journal of digital imaging

authors： Dackiewicz D,Bergsneider C,Piraino D

更新日期：2000-05-01 00:00:00

abstract：:The detection of clustered microcalcifications can help the radiologist to detect early breast cancer. Microcalcifications exhibit some important characteristics, such as small size and high luminosity. Use of a computer-aided diagnosis (CAD) method can prevent them being overlooked. In this report, a multiresolution ...

journal_title：Journal of digital imaging

authors： Mata Campos R,Vidal EM,Nava E,Martínez-Morillo M,Sendra F

更新日期：2000-05-01 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

authors： Trapnell CJ,Scarfe WC,Cook JH,Silvejra AM,Regennitter FJ,Haskell BS

更新日期：2000-02-01 00:00:00

abstract：:This article presents a review of image quality assessment methods for monochrome CRTs in the field as opposed to the laboratory. The review includes image quality programs at the University of Washington, the University of Texas at Houston, the University of Michigan, and the University of Arizona. CRT manufacturers ...

journal_title：Journal of digital imaging

authors： Roehrig H,Willis CE,Damento MA

更新日期：1999-11-01 00:00:00

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

authors： King BF Jr,Erickson BJ,Williamson B Jr,Reading CC,James EM,Ramthun SK,Owen DA

更新日期：1999-05-01 00:00:00

abstract：:Picture archiving and communications system (PACS) in the context of an outpatient trauma care center asks for a high level of interaction between information systems to guarantee rapid image acquisition and distribution to the surgeon. During installation of the Innsbruck PACS, special aspects of traumatology had to ...

journal_title：Journal of digital imaging

authors： Peer S,Vogl R,Peer R,Jaschke W

更新日期：1999-05-01 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

authors： Brye PE,Loharikar R,Duda E

更新日期：1999-05-01 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

authors： Lewis TE,Horton MC,Kinsey TV,Shelton PD

更新日期：1999-05-01 00:00:00

abstract：:To improve radiology access to full uncompressed Digital Imaging and Communications in Medicine (DICOM) data sets, we evaluated satellite access to a DICOM server. Radiologists' home computers were connected by satellite to a Medweb DICOM server (Medweb, San Francisco, CA). A 10.2-kb data set containing a 19-image hea...

journal_title：Journal of digital imaging

authors： Ernst RD,Kawashima A,Shepherd W,Tamm EP,Sandler CM

更新日期：1999-05-01 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

authors： Andriole KP

更新日期：1999-05-01 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

authors： Ishida T,Ashizawa K,Engelmann R,Katsuragawa S,MacMahon H,Doi K

更新日期：1999-05-01 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

authors： Tan JK

更新日期：1998-11-01 00:00:00

abstract：:Efficient data compression is essential for practical daily operation of computed radiography (CR) systems. In this study the clinical applicability of type III irreversible high data compression using an FCR 9501 chest unit (Fuji Photo Film, Tokyo, Japan) was evaluated. Sixty-eight normal and 93 various abnormal case...

journal_title：Journal of digital imaging

authors： Egashira K,Nakata H,Watanabe H,Uchida K,Nakamura K,Ishino Y,Horino K,Yoshikawa R

更新日期：1998-11-01 00:00:00

abstract：:The purpose of this study was to develop and evaluate a computerized method of calculating a breast density index (BDI) from digitized mammograms that was designed specifically to model radiologists' perception of breast density. A set of 153 pairs of digitized mammograms (cranio-caudal, CC, and mediolateral oblique, ...

journal_title：Journal of digital imaging

authors： Boone JM,Lindfors KK,Beatty CS,Seibert JA

更新日期：1998-08-01 00:00:00

abstract：:Digital modalities such as CT, MRI, Ultrasound and Computerized Radiography systems, generating softcopy images to be used by a Picture Archiving and Communication System (PACS), need to identify the images properly in order to retrieve and manage them. In many cases, a technologist re-enters patient demographic and s...

journal_title：Journal of digital imaging

authors： Oosterwijk H

更新日期：1998-08-01 00:00:00

abstract：:This paper details our experience in developing and implementing an automated DICOM Image Router. This workstation serves as a gateway between image acquisition devices and image display and storage devices. Images are checked for demographic input errors and data format inconsistencies between the source and destinat...

journal_title：Journal of digital imaging

authors： Junck KL,McEachern M,Grandhi S,Lewey G

更新日期：1998-08-01 00:00:00

abstract：:Panoramic radiography using a slit beam and film/screen receptor is standard for the emergency room evaluation of mandibular fractures and also in dentistry. This study compared the spatial resolution, area distortion factors, and the dosage considerations for a panoramic system where standard film/screen and a charge...

journal_title：Journal of digital imaging

authors： Farman AG,Farman TT

更新日期：1998-08-01 00:00:00

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 ...

journal_title：Journal of digital imaging

authors： Erickson BJ,Avula RT

更新日期：1998-05-01 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

authors： Toney MO,Dominguez R,Dao HN,Simmons G

更新日期：1997-11-01 00:00:00

abstract：:We have now analyzed the use and benefits of four Strategic Thinking Tools for Radiology: the Vision Statement, the High Five, the Two-by-Two, and Real-Win-Worth. Additional tools will be provided during the tutorial. The tools provided above should be considered as examples. They all contain the 10 benefits outlined ...

journal_title：Journal of digital imaging

authors： Schilling RB

更新日期：1997-08-01 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

authors： Cox RD,Henri CJ,Bret PM

更新日期：1997-08-01 00:00:00

abstract：:We evaluated the usefulness of a computerized analysis system in the detection of interstitial lung abnormalities in digitized chest radiography. This system uses the processes of four-directional Laplacian-Gaussian filtering, linear opacity judgment, and linear opacity subtraction. For qualitative analysis, we employ...

journal_title：Journal of digital imaging

authors： Kido S,Ikezoe J,Tamura S,Nakamura H,Kuroda C

更新日期：1997-05-01 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

authors： Langer S,Wang J

更新日期：1996-08-01 00:00:00

abstract：:To compare hard copies and soft copies processed with linear and nonlinear conversion of skeletal fractures, we performed a receiver-operating characteristics study of 25 digital radiographs. There was no statistical difference between hard copies with linear and nonlinear conversion. However, it may be difficult to d...

journal_title：Journal of digital imaging

authors： Kaji T,Katayama M,Kosuda S,Kusano S

更新日期：1995-02-01 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

authors： Aoki K

更新日期：1995-02-01 00:00:00

abstract：:Digital or computed radiography (CR) using photostimulable storage phosphor plate technology is becoming increasingly popular in certain clinical applications, such as bedside radiography, where it possesses clear advantages over conventional screen-film imaging. The majority of CR systems in clinical use have been ma...

journal_title：Journal of digital imaging

authors： Gingold EL,Tucker DM,Barnes GT

更新日期：1994-08-01 00:00:00

abstract：:This is the fifth and final article in our series for radiologists and imaging scientists on displaying, manipulating, and analyzing radiologic images on personal computers (PCs). There are many methods of transferring radiologic images into a PC, including transfer over a network, transfer from an imaging modality st...

journal_title：Journal of digital imaging

authors： Gillespy T 3rd,Richardson ML,Rowberg AH

更新日期：1994-08-01 00:00:00

abstract：:This paper describes a prototype viewing station for the Intensive Care Unit (ICU) that combines a low cost with a fast response for the primary viewing tasks. A single monitor is used together with the possibility to switch to another image on the same screen instantaneously. To reduce the time for image retrieval an...

journal_title：Journal of digital imaging

authors： Bellon E,Houtput W,Bijnens B,Suetens P,Marchal G,Lauwers P

更新日期：1994-05-01 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

authors： Gillespy T 3rd,Rowberg AH

更新日期：1993-08-01 00:00:00

abstract：:After several years of continuous operation, the utility of digital viewing stations as assessed by bedside clinicians has been investigated through the distribution of questionnaires to past and present users. The results of the questionnaire have indicated that the bedside physicians prefer using the workstations ov...

journal_title：Journal of digital imaging

authors： Humphrey LM,Fitzpatrick K,Paine SS,Ravin CE

更新日期：1993-02-01 00:00:00

abstract：:Different digital medical images have been printed on paper with a continuous ink jet printer, and the quality has been evaluated. The emphasis has been on digital chest radiographs from a computed radiography system. The ink jet printing technique is described as well as the handling of the image data from image sour...

journal_title：Journal of digital imaging

authors： Kirkhorn T,Kehler M,Nilsson J,Lyttkens K,Andersson B,Holmer NG

更新日期：1992-11-01 00:00:00

abstract：:A teleradiology system acquires radiographic images from one location and transmits them to one or more distant sites where they are displayed and/or converted to hard-copy film recordings. The long-term goal of teleradiology research is to show that teleradiology systems can provide diagnostically equivalent results ...

journal_title：Journal of digital imaging

authors： Stewart BK,Dwyer SJ 3rd,Kangarloo H

更新日期：1992-08-01 00:00:00

abstract：:Opinion surveys were gathered before and 6 months after installation of a prototype picture archiving and communication system (PACS) (PACS/1, Siemens Medical Systems, Iselin, NJ). Median turnaround times and the percent of delayed or missing reports were calculated for 1,026 baseline and 8,438 follow-up studies at 6 ...

journal_title：Journal of digital imaging

authors： Worrell JA,Federspiel CF,Creasy JL,Pickens DR 3rd,Higginbotham K,Patton JA,Partain CL

更新日期：1992-05-01 00:00:00

abstract：:A C-language software program has been developed for emulating the image enhancement processing of a storage phosphor plate system. This software has been implemented on a VAX 3400 computer. There are 2,100 lines of C-language code in the program. There are seven parameters used to specify the degree of enhancement. T...

journal_title：Journal of digital imaging

authors： Templeton AW,Wetzel LH,Cook LT,Harrison LA,Eckard DA,Anderson WH,Hensley KS

更新日期：1992-02-01 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

authors： Ozaki Y,Miyasaka K

更新日期：1991-11-01 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

authors： Perry JH

更新日期：1991-11-01 00:00:00

abstract：:Large PACS (Picture Archiving and Communication Systems) installations do not yet exist in Sweden, but some hospitals have had experience with limited PACS activities. At present there are four mini PACS installations in radiology departments and about 12 teleradiology systems in use in Sweden. A couple of small Swedi...

journal_title：Journal of digital imaging

authors： Olsson S

更新日期：1991-08-01 00:00:00

abstract：:Some nuclear medicine computer displays, as well as many image processing workstations are "true color" machines characterized by independent memory and grey scale mapping for each of the red, green and blue color channels. Other color image display systems produce a color image from a single grey scale map composed o...

journal_title：Journal of digital imaging

authors： Raff U,Spitzer VM

更新日期：1991-02-01 00:00:00