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 and precision testing were computed by software developed in our institution. This computer software can generate models of solid organs and allows both standard mouse-based and electromagnetic pen-driven segmentation (number of data sets, n = 70). The images used as input for rapidity testing was partly computed by modeling software (n = 70) and partly selected from contrast-enhanced computed tomography (CT) examinations (n = 12). Mean volumes and time required to perform the segmentation, along with standard deviation and range values with both techniques, were calculated. Student's t test was used to assess significance regarding mean volumes and time calculated by using both segmentation techniques on phantom and CT data sets. P value was also calculated. The mean volume difference was significantly lower with the use of the freehand electromagnetic pen as compared with the optical mouse (0.2% vs. 1.8%; P < .001). The mean segmentation time per patient was significantly shorter with the use of the freehand electromagnetic pen contourtracing method (354.5 vs. 499.1 s on phantoms; 457.4 vs. 610.0 s on CT images; P < .001). Freehand electromagnetic pen-based volumetric technique represents a technologic advancement over manual mouse-based contourtracing because of the superior statistical accuracy and sensibly shorter time required. Further studies focused on intra- and interobserver variability of the technique need to be performed before its introduction in clinical application.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Perandini S,Faccioli N,Inama M,Pozzi Mucelli Rdoi
10.1007/s10278-010-9291-8subject
Has Abstractpub_date
2011-04-01 00:00:00pages
360-5issue
2eissn
0897-1889issn
1618-727Xjournal_volume
24pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1007/s10278-010-9345-y
更新日期：2011-10-01 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：: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：: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：: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
pub_type： 杂志文章,评审
doi：10.1007/BF03168256
更新日期：1998-08-01 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：: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
pub_type： 杂志文章
doi：10.1007/s10278-008-9159-3
更新日期：2009-12-01 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：: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
pub_type： 杂志文章
doi：10.1007/BF03168605
更新日期：1996-08-01 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
pub_type： 杂志文章
doi：10.1007/BF03168729
更新日期：1998-05-01 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：:Lung cancer has the highest mortality rate of all cancers, and early detection can improve survival rates. In the recent years, low-dose CT has been widely used to detect lung cancer. However, the diagnosis is limited by the subjective experience of doctors. Therefore, the main purpose of this study is to use convolut...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00333-1
更新日期：2020-08-01 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
pub_type： 杂志文章
doi：10.1007/s10278-019-00199-y
更新日期：2020-02-01 00:00:00
abstract：:In this paper, a simplified yet efficient architecture of a deep convolutional neural network is presented for lung image classification. The images used for classification are computed tomography (CT) scan images obtained from two scientifically used databases available publicly. Six external shape-based features, vi...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00245-9
更新日期：2020-02-01 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
pub_type： 杂志文章
doi：10.1007/s10278-011-9402-1
更新日期：2012-02-01 00:00:00
abstract：:Breast cancer is the most common type of malignancy diagnosed in women. Through early detection and diagnosis, there is a great chance of recovery and thereby reduce the mortality rate. Many preliminary tests like non-invasive radiological diagnosis using ultrasound, mammography, and MRI are widely used for the diagno...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-019-00295-z
更新日期：2020-10-01 00:00:00
abstract：:Today, many hospitals have a running enterprise picture archiving and communication system (PACS) and their administrators should have the tools to measure the system activity and, in particular, how much it is used. The information would be valuable for decision-makers to address asset management and the development ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-016-9870-4
更新日期：2016-12-01 00:00:00
abstract：:Surface morphology and shape in general are important predictors for the behavior of solid-type lung nodules detected on CT. More broadly, shape analysis is useful in many areas of computer-aided diagnosis and essentially all scientific and engineering disciplines. Automated methods for shape detection have all previo...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9732-x
更新日期：2015-04-01 00:00:00
abstract：:This article describes an application for capturing, delivering, and tracking urgent radiology exam results. Urgent exam findings are entered using a Web form embedded within the Picture archiving and communication system (PACS) display station. The findings are then accessible via soft copy using the PACS display sta...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-003-1717-0
更新日期：2004-06-01 00:00:00
abstract：:The Fuhrman nuclear grade is a recognized prognostic factor for patients with clear cell renal cell carcinoma (CCRCC) and its pre-treatment evaluation significantly affects decision-making in terms of management. In this study, we aimed to assess the feasibility of a combined approach of radiomics and machine learning...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00336-y
更新日期：2020-08-01 00:00:00
abstract：:To evaluate the feasibility of an iPad-based documented patient briefing for Magnetic Resonance Imaging (MRI) examinations. A standard briefing sheet and questionnaire for a MRI scan was converted from paper form into an iPad application. Twenty patients, who had been referred for an MRI scan, were briefed about the e...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9560-9
更新日期：2013-06-01 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
pub_type： 杂志文章
doi：10.1007/s10278-010-9350-1
更新日期：2011-10-01 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：: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：: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
pub_type： 杂志文章
doi：10.1007/s10278-009-9210-z
更新日期：2010-12-01 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：: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：:Frequently when patient and study identification information (patient name, patient identification, date of birth, sex, and accession number) are manually entered at a modality, typographical errors occur that have to be corrected before the acquired images can be matched to the proper patient and study on a picture a...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03190323
更新日期：2001-06-01 00:00:00
abstract：:Airway diseases are frequently related to morphological changes that may influence lung physiology. Accurate airway region segmentation may be useful for quantitative evaluation of disease prognosis and therapy efficacy. The information can also be applied to understand the fundamental mechanisms of various lung disea...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-018-0158-8
更新日期：2019-10-01 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
pub_type： 杂志文章
doi：10.1007/s10278-009-9218-4
更新日期：2010-12-01 00:00:00
