Application of temporal subtraction for detection of interval changes on chest radiographs: improvement of subtraction images using automated initial image matching.

abstract：:The purpose of this study was to retrospectively evaluate radiologist performance in detection of lacunar infarcts on T1- and T2-weighted images, without and with the use of a computer-aided diagnosis (CAD) scheme. Thirty T1-weighted and 30 T2-weighted MR images obtained from 30 patients were used for assessing observ...

journal_title：Journal of digital imaging

authors： Uchiyama Y,Asano T,Kato H,Hara T,Kanematsu M,Hoshi H,Iwama T,Fujita H

更新日期：2012-08-01 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

authors： Langer S,Bartholmai B,Fetterly K,Harmsen S,Ryan W,Erickson B,Andriole K,Carrino J

更新日期：2004-09-01 00:00:00

abstract：:There has been increasing interest in adjusting CT radiation dose data for patient body size. A method for automated computation of the abdominal effective diameter of a patient from a CT image has previously only been tested in adult patients. In this work, we tested the method on a set of 128 pediatric patients aged...

journal_title：Journal of digital imaging

authors： Cheng PM,Vachon LA,Duddalwar VA

更新日期：2013-12-01 00:00:00

abstract：:The residency review committee of the Accreditation Council of Graduate Medical Education (ACGME) collects data on resident exam volume and sets minimum requirements. However, this data is not made readily available, and the ACGME does not share their tools or methodology. It is therefore difficult to assess the integ...

journal_title：Journal of digital imaging

authors： Chen PH,Loehfelm TW,Kamer AP,Lemmon AB,Cook TS,Kohli MD

更新日期：2016-12-01 00:00:00

abstract：:A 10-bit or 12-bit gray scale is provided in commercial laser film digitizers. The true contrast resolution on the digitized image within a laser spot area of 200 microns in diameter is limited by both the quantum mottle and instrumentation noise. In this report, we investigated the mean value, standard deviation, and...

journal_title：Journal of digital imaging

authors： Lo SC,Gaskill JW,Mun SK,Krasner BH

更新日期：1990-05-01 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：: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

authors： Chen Y,Villanueva-Meyer JE,Morrison MA,Lupo JM

更新日期：2019-10-01 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：:While the implementation of Picture Archiving and Communication Systems (PACS) has revolutionized the field of radiology, there has been considerably less utilization of PACS by emergency physicians with point-of-care ultrasound. Benefits of PACS archival of images include improved quality assurance, preservation of i...

journal_title：Journal of digital imaging

authors： Kessler R,Stowell JR,Vogel JA,Liao MM,Kendall JL

更新日期：2016-12-01 00:00:00

abstract：:Remote teleconsultation by specialists is important for timely, correct, and specialized emergency surgical and medical decision making. In this paper, we designed a new personal digital assistant (PDA)-phone-based emergency teleradiology system by combining cellular communication with Bluetooth-interfaced local wirel...

journal_title：Journal of digital imaging

authors： Kim DK,Yoo SK,Park JJ,Kim SH

更新日期：2007-06-01 00:00:00

abstract：:In this investigation the effect of JPEG 2000 compression on the contrast-detail (CD) characteristics of digital mammography images was studied using an alternative forced choice (AFC) technique. Images of a contrast-detail phantom, acquired using a clinical full-field digital mammography system, were compressed using...

journal_title：Journal of digital imaging

authors： Suryanarayanan S,Karellas A,Vedantham S,Waldrop SM,D'Orsi CJ

更新日期：2004-03-01 00:00:00

abstract：:Bone age assessment (BAA) is a commonly performed diagnostic study in pediatric radiology to assess skeletal maturity. The most commonly utilized method for assessment of BAA is the Greulich and Pyle method (Pediatr Radiol 46.9:1269-1274, 2016; Arch Dis Child 81.2:172-173, 1999) atlas. The evaluation of BAA can be a t...

journal_title：Journal of digital imaging

authors： Mutasa S,Chang PD,Ruzal-Shapiro C,Ayyala R

更新日期：2018-08-01 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：: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：: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：: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

authors： Mouawad M,Biernaski H,Brackstone M,Lock M,Kornecki A,Shmuilovich O,Ben-Nachum I,Prato FS,Thompson RT,Gaede S,Gelman N

更新日期：2020-10-01 00:00:00

abstract：:Contacting clinicians to convey critical results is a critical part of radiology workflow, but many obstacles prevent easy and timely communication. Integration of radiology applications and workflow with an EHR-based patient coverage database demonstrated subjective and objective improvement in radiologist workflow a...

journal_title：Journal of digital imaging

authors： Filice R

更新日期：2017-10-01 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

authors： Suliman II

更新日期：2020-02-01 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

authors： Koenker RM,Grover SA

更新日期：2002-01-01 00:00:00

abstract：:Fibrous dysplasia (FD) is a developmental anomaly in which the normal medullary space of the affected bone is replaced by fibro-osseous tissue. This condition is typically encountered in adolescents and young adults. It affects the maxillofacial region and it can often cause severe deformity and asymmetry. Therefore, ...

journal_title：Journal of digital imaging

authors： Cordeiro MS,Backes AR,Júnior AF,Gonçalves EH,de Oliveira JX

更新日期：2016-02-01 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

authors： Zhang R,Narra VR,Kansagra AP

更新日期：2020-02-01 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

authors： Kumar S,Nayak KP,Hareesha KS

更新日期：2016-04-01 00:00:00

abstract：:Bone density measurement by quantitative computed tomography (QCT) commonly uses an external reference phantom to decrease scan-to-scan and scanner-to-scanner variability. However, the peripheral location of these phantoms and other phantom variables is also responsible for a measurable degradation in accuracy and pre...

journal_title：Journal of digital imaging

authors： Boden SD,Goodenough DJ,Stockham CD,Jacobs E,Dina T,Allman RM

更新日期：1989-02-01 00:00:00

abstract：:Our aim was to prove the feasibility of the remote interpretation of real-time transmitted ultrasound videos of dynamic and static organs using a smartphone with control of the image quality given a limited internet connection speed. For this study, 100 cases of echocardiography videos (dynamic organ)-50 with an eject...

journal_title：Journal of digital imaging

authors： Kim C,Cha H,Kang BS,Choi HJ,Lim TH,Oh J

更新日期：2016-06-01 00:00:00

abstract：:To illustrate the availability, effectiveness, and practical use of Open-Source tools in developing a radiology paper from its beginning to its presentation and publication. Practical use of a complete set of Open-Source applications for writing, e-mail corresponding, slide show, image retrieval, and manipulation is s...

journal_title：Journal of digital imaging

authors： Faccioli N,Perandini S,Barillari M,D'Onofrio M,Mucelli RP

更新日期：2009-12-01 00:00:00

abstract：INTRODUCTION:To validate a preliminary version of a radiological lexicon (RadLex) against terms found in thoracic CT reports and to index report content in RadLex term categories. MATERIAL AND METHODS:Terms from a random sample of 200 thoracic CT reports were extracted using a text processor and matched against RadLex...

journal_title：Journal of digital imaging

authors： Marwede D,Schulz T,Kahn T

更新日期：2008-12-01 00:00:00

abstract：:In this paper, a novel lesion segmentation within breast ultrasound (BUS) image based on the cellular automata principle is proposed. Its energy transition function is formulated based on global image information difference and local image information difference using different energy transfer strategies. First, an en...

journal_title：Journal of digital imaging

authors： Liu Y,Cheng HD,Huang J,Zhang Y,Tang X

更新日期：2012-10-01 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

authors： Fang YC,Yang MC,Hsueh YS

更新日期：2006-01-01 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：: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

authors： Petersilge CA

更新日期：2020-02-01 00:00:00