Abstract：
:In this paper, we propose a new method for stitching multiple fluoroscopic images taken by a C-arm instrument. We employ an X-ray radiolucent ruler with numbered graduations while acquiring the images, and the image stitching is based on detecting and matching ruler parts in the images to the corresponding parts of a virtual ruler. To achieve this goal, we first detect the regular spaced graduations on the ruler and the numbers. After graduation labeling, for each image, we have the location and the associated number for every graduation on the ruler. Then, we initialize the panoramic X-ray image with the virtual ruler, and we "paste" each image by aligning the detected ruler part on the original image, to the corresponding part of the virtual ruler on the panoramic image. Our method is based on ruler matching but without the requirement of matching similar feature points in pairwise images, and thus, we do not necessarily require overlap between the images. We tested our method on eight different datasets of X-ray images, including long bones and a complete spine. Qualitative and quantitative experiments show that our method achieves good results.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Chen C,Kojcev R,Haschtmann D,Fekete T,Nolte L,Zheng Gdoi
10.1007/s10278-014-9763-3subject
Has Abstractpub_date
2015-08-01 00:00:00pages
474-80issue
4eissn
0897-1889issn
1618-727Xjournal_volume
28pub_type
杂志文章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：:Computed radiography of chest with a 4K image array was recently introduced. We performed a multiobserver study to compare the diagnostic accuracy of 2K (standard) and 4K (high quality) chest radiographs displayed on a 5-mega-pixel monitor (2K monitor). One hundred cases of posteroanterior chest radiographs (a total o...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-1048-z
更新日期：2007-12-01 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
pub_type： 杂志文章
doi：10.1007/BF03168415
更新日期：1993-02-01 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：:In this paper, a heuristic approach to automated nipple detection in digital mammograms is presented. A multithresholding algorithm is first applied to segment the mammogram and separate the breast region from the background region. Next, the problem is considered separately for craniocaudal (CC) and mediolateral-obli...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9575-x
更新日期：2013-10-01 00:00:00
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
pub_type： 杂志文章
doi：10.1007/BF03167642
更新日期：2000-05-01 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：:This paper presents our solution for supporting radiologists' interpretation of digital images by automating image presentation during sequential interpretation steps. We extended current hanging protocols with support for "stages" which reflect the presentation of digital information required to complete a single ste...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-004-1906-5
更新日期：2005-06-01 00:00:00
abstract：:Fiber tracking allows the in vivo reconstruction of human brain white matter fiber trajectories based on magnetic resonance diffusion tensor imaging (MR-DTI), but its application in the clinical routine is still in its infancy. In this study, we present a new software for fiber tracking, developed on top of a general-...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-0773-7
更新日期：2007-03-01 00:00:00
abstract：:The interfacing of digital image acquisition modalities to the picture archiving and communication system (PACS) plays a major part in the conversion from a traditional film-based radiology practice to one that relies almost entirely on soft-copy reading. The Baltimore Veterans Affairs Medical Center (VAMC) is one of ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167632
更新日期：2000-05-01 00:00:00
abstract：:Workflow is a widely used term to describe the sequence of steps to accomplish a task. The use of workflow technology in medicine and medical imaging in particular is limited. In this article, we describe the application of a workflow engine to improve workflow in a radiology department. We implemented a DICOM-enabled...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9661-0
更新日期：2014-06-01 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
pub_type： 杂志文章
doi：10.1007/BF03167652
更新日期：2000-05-01 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
pub_type： 杂志文章
doi：10.1007/s10278-008-9157-5
更新日期：2010-02-01 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：: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：: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
pub_type： 杂志文章
doi：10.1007/s10278-007-9095-7
更新日期：2009-12-01 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
pub_type： 杂志文章
doi：10.1007/s10278-017-9962-9
更新日期：2017-10-01 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：: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
pub_type： 杂志文章
doi：10.1007/s10278-007-9015-x
更新日期：2008-03-01 00:00:00
abstract：:We introduce the concept, benefits, and general architecture for acquiring, storing, and displaying digital photographs along with medical imaging examinations. We also discuss a specific implementation built around an Android-based system for simultaneously acquiring digital photographs along with portable radiograph...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-013-9579-6
更新日期：2013-10-01 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
pub_type： 杂志文章
doi：10.1007/s10278-018-0053-3
更新日期：2018-08-01 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
pub_type： 杂志文章
doi：10.1007/BF03168779
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：:A study was conducted to evaluate the sensitivity of computer-aided detection (CAD) with full-field digital mammography in detection of breast cancer, based on mammographic appearance and histopathology. Retrospectively, CAD sensitivity was assessed in total group of 152 cases for subgroups based on breast density, ma...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9564-5
更新日期：2013-08-01 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
pub_type： 杂志文章
doi：10.1007/s10278-009-9226-4
更新日期：2010-12-01 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
pub_type： 杂志文章
doi：10.1007/s10278-010-9350-1
更新日期：2011-10-01 00:00:00
abstract：:Managing and optimizing radiation dose has become a core problem for the CT community. As a fundamental step for dose optimization, accurate and computationally efficient dose estimates are crucial. The purpose of this study was to devise a computationally efficient projection-based dose metric. The absorbed energy an...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-016-9869-x
更新日期：2016-10-01 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：: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
pub_type： 杂志文章
doi：10.1007/BF03167662
更新日期：2000-05-01 00:00:00
