abstract：:While occupational stress and fatigue have been well described throughout medicine, the radiology community is particularly susceptible due to declining reimbursements, heightened demands for service deliverables, and increasing exam volume and complexity. The resulting occupational stress can be variable in nature an...

journal_title：Journal of digital imaging

authors： Reiner BI

更新日期：2013-02-01 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：: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

authors： Pollard BJ,Samei E,Chawla AS,Beam C,Heyneman LE,Koweek LM,Martinez-Jimenez S,Washington L,Hashimoto N,McAdams HP

更新日期：2012-08-01 00:00:00

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：:Validation of medical signal and image processing systems requires quality-assured, representative and generally acknowledged databases accompanied by appropriate reference (ground truth) and clinical metadata, which are composed laboriously for each project and are not shared with the scientific community. In our vis...

journal_title：Journal of digital imaging

authors： Deserno TM,Welter P,Horsch A

更新日期：2012-04-01 00:00:00

abstract：:In this paper, we describe and evaluate a system that extracts clinical findings and body locations from radiology reports and correlates them. The system uses Medical Language Extraction and Encoding System (MedLEE) to map the reports' free text to structured semantic representations of their content. A lightweight r...

journal_title：Journal of digital imaging

authors： Sevenster M,van Ommering R,Qian Y

更新日期：2012-04-01 00:00:00

abstract：:It is difficult to detect sentinel lymph nodes (SLNs) around an injection point of radiopharmaceuticals mapped in lymphoscintigrams. The purpose of this study was to develop a computer-aided detection (CAD) scheme for SLNs by a subtraction technique using the symmetrical property in the mapped injection point. Our dat...

journal_title：Journal of digital imaging

authors： Nakayama R,Hizukuri A,Yamamoto K,Nakako N,Nagasawa N,Takeda K

更新日期：2012-02-01 00:00:00

abstract：:Cardiovascular disease is the leading cause of global mortality, yet its early detection remains a vexing problem of modern medicine. Although the computed tomography (CT) calcium score predicts cardiovascular risk, relatively high cost ($250-400) and radiation dose (1-3 mSv) limit its universal utility as a screening...

journal_title：Journal of digital imaging

authors： Mafi JN,Fei B,Roble S,Dota A,Katrapati P,Bezerra HG,Wang H,Wang W,Ciancibello L,Costa M,Simon DI,Orringer CE,Gilkeson RC

更新日期：2012-02-01 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

authors： Bator M,Nieniewski M

更新日期：2012-02-01 00:00:00

abstract：:Successful adoption of new technology development can be accentuated by learning and applying the scientific principles of innovation diffusion. This is of particular importance to areas within the medical imaging practice which have lagged in innovation; perhaps, the most notable of which is reporting which has remai...

journal_title：Journal of digital imaging

authors： Reiner BI

更新日期：2012-02-01 00:00:00

abstract：:Optical imaging using near-infrared light is used for noninvasive probing of tissues to recover vascular and molecular status of healthy and diseased tissues using hemoglobin contrast arising due to absorption of light. While multimodality optical techniques exist, visualization techniques in this area are limited. Ad...

journal_title：Journal of digital imaging

authors： Taka SJ,Srinivasan S

更新日期：2011-12-01 00:00:00

abstract：:Recent healthcare policies have influenced the manner in which patient data is handled in research projects, and the regulations concerning protected health information have become significantly tighter. Thus, new procedures are needed to facilitate research while protecting the confidentiality of patient data and ens...

journal_title：Journal of digital imaging

authors： Rajala T,Savio S,Penttinen J,Dastidar P,Kähönen M,Eskola H,Miettunen R,Turjanmaa V,Järvenpää R

更新日期：2011-10-01 00:00:00

abstract：:Numerous articles have offered instructions for working with advanced radiology images in Microsoft PowerPoint (Redmond, WA); however, no articles have detailed instructions to do the same on alternative presentation software. Apple Macintosh (Cupertino, CA) computers are gaining popularity with many radiologists, due...

journal_title：Journal of digital imaging

authors： Ghoshhajra BB,Techasith T,Choy G,Rojas CA,Pomerantz SR

更新日期：2011-10-01 00:00:00

abstract：:A novel medical image quality index using grey relational coefficient calculation is proposed in this study. Three medical modalities, DR, CT and MRI, using 30 or 60 images with a total of 120 images used for experimentation. These images were first compressed at ten different compression ratios (10 ∼ 100) using a med...

journal_title：Journal of digital imaging

authors： Lin SC,Lin YC,Feng WS,Wu JM,Chen TJ

更新日期：2011-10-01 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

authors： Kim DK,Kim EY,Yang KH,Lee CK,Yoo SK

更新日期：2011-08-01 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

authors： Noser H,Radetzki F,Stock K,Mendel T

更新日期：2011-08-01 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

authors： Perandini S,Faccioli N,Inama M,Pozzi Mucelli R

更新日期：2011-04-01 00:00:00

abstract：:Training as a radiology resident is a complex task. Residents frequently encounter multiple hospital systems, each with unique workflow patterns and heterogenous information systems. We identified an opportunity to ease some of the resulting anxiety and frustration by centralizing high-quality resources using a wiki. ...

journal_title：Journal of digital imaging

authors： Kohli MD,Bradshaw JK

更新日期：2011-02-01 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

authors： Gersten DB,Langer SG

更新日期：2011-02-01 00:00:00

abstract：:Single standard anteroposterior radiograph-based methods for measuring cup orientation following total hip arthroplasty (THA) are subject to substantial errors if the individual pelvic orientation with respect to X-ray plate is not taken into consideration. Previously, we proposed to use a hybrid 2D-3D registration sc...

journal_title：Journal of digital imaging

authors： Zheng G

更新日期：2010-12-01 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

authors： Truc PT,Kim TS,Lee S,Lee YK

更新日期：2010-12-01 00:00:00

abstract：:Recently, several types of post-processing image filter which was designed to reduce noise allowing a corresponding dose reduction in CT images have been proposed and these were reported to be useful for noise reduction of CT images of adult patients. However, these have not been reported on adaptation for pediatric p...

journal_title：Journal of digital imaging

authors： Nishimaru E,Ichikawa K,Okita I,Tomoshige Y,Kurokawa T,Nakamura Y,Suzuki M

更新日期：2010-12-01 00:00:00

abstract：:The objective of this study is to retrospectively investigate whether using the newly developed algorithms would improve radiologists' accuracy for discriminating malignant masses from benign ones on ultrasonographic (US) images. Five radiologists blinded to the histological results and clinical history independently ...

journal_title：Journal of digital imaging

authors： Wang Y,Wang H,Guo Y,Ning C,Liu B,Cheng HD,Tian J

更新日期：2010-10-01 00:00:00

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 c...

journal_title：Journal of digital imaging

authors： Rangayyan RM,Banik S,Desautels JE

更新日期：2010-10-01 00:00:00

abstract：:The study investigates the effect of a substantial dose reduction on the variability of lung nodule volume measurements by assessing and comparing nodule volumes using a dedicated semiautomated segmentation software on ultralow-dose computed tomography (ULD-CT) and standard-dose computed tomography (SD-CT) data. In 20...

journal_title：Journal of digital imaging

authors： Hein PA,Romano VC,Rogalla P,Klessen C,Lembcke A,Bornemann L,Dicken V,Hamm B,Bauknecht HC

更新日期：2010-02-01 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

authors： Depeursinge A,Iavindrasana J,Hidki A,Cohen G,Geissbuhler A,Platon A,Poletti PA,Müller H

更新日期：2010-02-01 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

authors： Abe K,Narata M,Tanaka I,Takahashi M,Igarashi A,Sasaki T,Matsuyama K,Tohi N,Kosuda S

更新日期：2009-12-01 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：BACKGROUND:Orthopedic trauma care relies on two-dimensional radiograms both before and during the operation. Understanding the three-dimensional nature of complex fractures on plain radiograms is challenging. Modern fluoroscopes can acquire three-dimensional volume datasets even during an operation, but the device limi...

journal_title：Journal of digital imaging

authors： Matthews F,Messmer P,Raikov V,Wanner GA,Jacob AL,Regazzoni P,Egli A

更新日期：2009-10-01 00:00:00

abstract：:In this work, two different approaches are proposed for region of interest (ROI) segmentation using transrectal ultrasound (TRUS) images. The two methods aim to extract informative features that are able to characterize suspicious regions in the TRUS images. Both proposed methods are based on multi-resolution analysis...

journal_title：Journal of digital imaging

authors： Mohamed SS,Li J,Salama MM,Freeman G

更新日期：2009-10-01 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

authors： Guliato D,Bôaventura RS,Maia MA,Rangayyan RM,Simedo MS,Macedo TA

更新日期：2009-08-01 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

authors： Honey ID,Mackenzie A

更新日期：2009-08-01 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

authors： Channin DS,Bowers G,Nagy P

更新日期：2009-06-01 00:00:00

abstract：:A long-standing challenge of content-based image retrieval (CBIR) systems is the definition of a suitable distance function to measure the similarity between images in an application context which complies with the human perception of similarity. In this paper, we present a new family of distance functions, called att...

journal_title：Journal of digital imaging

authors： Felipe JC,Traina C Jr,Traina AJ

更新日期：2009-04-01 00:00:00

abstract：:The Integrating the Healthcare Enterprise (IHE) Teaching File and Clinical Trial Export (TCE) integration profile describes a standard workflow for exporting key images from an image manager/archive to a teaching file, clinical trial, or electronic publication application. Two specific digital imaging and communicatio...

journal_title：Journal of digital imaging

authors： Kamauu AW,DuVall SL,Liimatta AP,Wiggins RH 3rd,Avrin DE

更新日期：2008-12-01 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：:The goal of this study was to assess whether radiologists' search paths for lung nodule detection in chest computed tomography (CT) between different rendering and display schemes have reliable properties that can be exploited as an indicator of ergonomic efficiency for the purpose of comparing different display parad...

journal_title：Journal of digital imaging

authors： Wang XH,Durick JE,Lu A,Herbert DL,Golla SK,Foley K,Piracha CS,Shinde DD,Shindel BE,Fuhrman CR,Britton CA,Strollo DC,Shang SS,Lacomis JM,Good WF

更新日期：2008-10-01 00:00:00

abstract：:In this paper, a new neural network model inspired by the biological immune system functions is presented. The model, termed Artificial Immune-Activated Neural Network (AIANN), extracts classification knowledge from a training data set, which is then used to classify input patterns or vectors. The AIANN is based on a ...

journal_title：Journal of digital imaging

authors： Younis A,Ibrahim M,Kabuka M,John N

更新日期：2008-10-01 00:00:00

abstract：:Breast masses due to benign disease and malignant tumors related to breast cancer differ in terms of shape, edge-sharpness, and texture characteristics. In this study, we evaluate a set of 22 features including 5 shape factors, 3 edge-sharpness measures, and 14 texture features computed from 111 regions in mammograms,...

journal_title：Journal of digital imaging

authors： Mu T,Nandi AK,Rangayyan RM

更新日期：2008-06-01 00:00:00

abstract：:We have developed an algorithm for enhancement of spicules of spiculated masses, which uses the discrete radon transform. Previously, we employed a commonly used method to compute the discrete radon transform, which we refer to as the DRT. Recently, a new, more exact method to compute the discrete radon transform was ...

journal_title：Journal of digital imaging

authors： Sampat MP,Whitman GJ,Bovik AC,Markey MK

更新日期：2008-03-01 00:00:00