The Experts below are selected from a list of 23484 Experts worldwide ranked by ideXlab platform
A Wallin - One of the best experts on this subject based on the ideXlab platform.
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SU‐GG‐T‐256: An Enhanced DICOM‐RT Viewer
Medical Physics, 2010Co-Authors: Yulong Yan, Y. Dou, X. Weng, A WallinAbstract:Purpose: To present an enhanced DICOM‐RT viewer for clinical practitioners and R&D scientists and engineers in radiation therapy. Methods and Materials: DICOM‐RT is a set of DICOM extensions for radiotherapy. Despite the fact that DICOM‐RT was devised in 1997 and has currently been adopted by all major manufacturers, the DICOM‐RT viewer is not readily available to many healthcare providers and R&D scientists and engineers in radiation therapy. Triggered by clinical needs, a DICOM/DICOM‐RT viewer, DICOMan, was developed on Microsoft Windows XP platform started from scratch three years ago. It supports all kinds of DICOM‐RT objects, namely RT Image, RT Structure Set, RT Plan, RT Dose and RT Record. Added to the viewer, a set of built‐in tools were also implemented, such as DICOM Decompressor, DICOM Pusher, DICOM Retriever, DICOM editor, DICOM Anonymizer, DICOM Format Converter and so on. Some RT information that is not explicitly expressed in RT objects, such as incident energy fluence and isodose curves, can be reproduced and rendered to facilitate plan review. Results: DICOMan has been tested, routinely used and constantly upgraded for about three years. It has been frequently used to view DICOM CD‐ROMs, push DICOM images to treatment planningsystems, retrieve images from RT PACS, review treatment plans and help perform dose summation. The anonymizer, format converter and editor are handy tools for R&D scientists and engineers who need to handle DICOM/DICOM‐RT objects. Conclusion: DICOM RT extension models radiation therapy practice in many modules related to clinical components of radiation therapy. Many of them are cross‐referenced and coexist with the referenced ones in different objects. The regular DICOM viewer can not render RT objects appropriately. A dedicated DICOM RT viewer is needed.
Annalisa Trianni - One of the best experts on this subject based on the ideXlab platform.
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DICOM standards for patient dosimetry
Physica Medica, 2016Co-Authors: Annalisa TrianniAbstract:Data related to patient radiation exposure during radiologic procedures can be stored and communicated using the non-image information object definitions (non IOD) DICOM objects. More specifically, there are three DICOM objects in the standard that can be used to transport exposure information: the DICOM header, the DICOM Modality Performed Procedure Step (MPPS) and the DICOM Radiation Dose Structured Report (RDSR). All these objects have several advantages and some limitations. All the mentioned objects are carrying information about equipment output and do not provide any information on patient dose. The most complete of the three objects previously mentioned is the DICOM RDSR, which was added to the Standard in 2005. This object transports the information related to the equipment output along with information about the patient and the procedure that could be used to estimate the exposure to the patient. Although unfortunately this information is not complete. Moreover some new modalities (e.g: CBCT) need specific attributes to be stored and communicated and the present RDSR structure needs to be enhanced to allow it. Furthermore none of this DICOM object includes a template for patient-specific dose data to be recorded after estimation. For this reason a new DICOM object, the Patient Radiation Dose Structured Report (P-RDSR) has being developed. The new P-RDSR will provide the archival tool to record the results of the estimations and the methodology used to achieve this estimate.
B Zhang - One of the best experts on this subject based on the ideXlab platform.
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su e t 219 a free and open source DICOM solution DICOMpack
Medical Physics, 2012Co-Authors: B ZhangAbstract:Purpose: DICOMPack aims to provide a Perl DICOM library to isolate DICOM complexity and facilitate creation of DICOM applications. Methods: DICOMPack was initially designed for research projects to process and exchange radiotherapymedical images and treatment plans among research institutions, as well as between treatment planning systems and Open Radiological Archiving and Communication System (ORACS) research database. DICOMPack uses an extensible internal data structure to store any encoded information observing DICOM's tag/element structure. Therefore, DICOMPack either populates a data structure by DICOM information or converts a populated data structure into DICOM format. In this way, DICOMPack creates a DICOM file either from scratch or using an existing DICOM template upfront. And this design also enables DICOMPack to handle nested sequence data and multi‐frame images easily. Along with DICOMPack∷IO, DICOMPack∷Network provides a comprehensive solution of exchanging DICOM information through DIMSE (DICOM Message Service) protocol. Its callback plugin design provides a universal interface to all DIMSE commands (DIMSE‐C and DIMSE‐N). Each time a new DIMSE command needs to be implemented, users only need to provide callback procedures to answer some basic questions, such as where to retrieve/store DICOM information. In addition, DICOMPack provides examples, e.g., DICOMDumper, DICOMAnonymizer, DICOMStore, under DICOMPack∷Util to demonstrate how to develop DICOM applications through DICOMPack. Results: Conclusions: DICOMPack is a pure Perl package, which means DICOMPack only has dependency on core Perl functions. As free software, DICOMPack can be redistributed and/or modified as Perl. The easiest way to install DICOMPack is through cpan.org (Comprehensive Perl Archive Network). However, DICOMPack is in no way intended to to interpret DICOM information and/or enforce DICOM conformance, which will be up to application developers.
M.h. Baljon - One of the best experts on this subject based on the ideXlab platform.
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DICOM CD-R, your guarantee to interchangeability?
Computers in Cardiology 1997, 1Co-Authors: M.g.j.m. Gerritsen, F. Van Rappard, M.h. Baljon, Nhjj Van Der Putten, W.r.m. Dassen, W.a. DijkAbstract:A feasibility study is described on inter-departmental exchange of CD-Rs with data formatted according to the DICOM 3.0 standard. The objective is the assessment of the DICOM v3.0 data-sets on CD-R according to the DICOM basic cardiac Profile and the review capabilities of DICOM conformant cardiac review stations. Eleven CD-Rs were assessed: six were routinely recorded at departments using the equipment from four different manufacturers, five CD-Rs were DEMO-disks issued first half 1997. Seven DICOM conformant review stations, currently in use at the Dutch cardiology departments, are tested in this study. The exchange of DICOM Cardiac cine's stored on CD-Rs appeared not to be without problems. The discussion refers to DICOM and non-DICOM properties that could play a role. A proposal for a minimal dataset for interchange is made based on Dutch daily practice.
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DICOM application profiler for modelling and checking DICOM datasets
Computers in Cardiology 1996, 1Co-Authors: M.h. Baljon, M.g.j.m. Gerritsen, F. Van Rappard, W.a. Dijk, N. Van Der PuttenAbstract:DICOM is a standard that is being used for exchange and storage of medical images and related information all over the world. In the Netherlands, a DICOM standardisation project has resulted in an application profiler for modelling and validating DICOM datasets on CD-R (CD-recordable) or other storage media. The development of this tool has proven to be extremely useful for increasing the knowledge of the DICOM standard both for technicians and for cardiologists. The validation of DICOM datasets has turned out to be a very critical issue for making sure that DICOM implementations make DICOM's promise of being open really come true.
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A testbed project for DICOM images and waveforms integration
Computers in Cardiology 1998. Vol. 25 (Cat. No.98CH36292), 1Co-Authors: E.t. Van Der Velde, M.g.j.m. Gerritsen, N. Van Der Putten, H.j. Spruijt, H. Oon, A. Kleijhorst, G. De Steur, S. Meji, M.h. BaljonAbstract:Today, in many catheterization labs, angiographic images are stored in DICOM format on CD, and reviewed from this DICOM CD. However, in clinical practice it would be very, advantageous to be able to store and display the images together with the waveforms (ECG, pressure) recorded simultaneously in the cathlab. To this end, a new supplement will be added to the DICOM standard (supplement 30). To gain experience with this DICOM-WV supplement, and to get comments from prospective users, we have initiated a project to create combined DICOM data-sets and to develop a viewer for times-synchronized display of images and waveforms, based on a draft version of the new DICOM-WV supplement. The initial results show that conversion of the waveform signals to DICOM-WV format can be easily performed and that time-synchronous display of images and waveforms opens new and exciting possibilities towards a fully integrated digital cathlab laboratory. Future plans include include a more generic solution to the time-synchronization problem, inclusion of other image modalities such as echo, inclusion of annotations and events and integration with DICOM supplement 23 (structured reporting).
M.g.j.m. Gerritsen - One of the best experts on this subject based on the ideXlab platform.
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DICOM CD-R, your guarantee to interchangeability?
Computers in Cardiology 1997, 1Co-Authors: M.g.j.m. Gerritsen, F. Van Rappard, M.h. Baljon, Nhjj Van Der Putten, W.r.m. Dassen, W.a. DijkAbstract:A feasibility study is described on inter-departmental exchange of CD-Rs with data formatted according to the DICOM 3.0 standard. The objective is the assessment of the DICOM v3.0 data-sets on CD-R according to the DICOM basic cardiac Profile and the review capabilities of DICOM conformant cardiac review stations. Eleven CD-Rs were assessed: six were routinely recorded at departments using the equipment from four different manufacturers, five CD-Rs were DEMO-disks issued first half 1997. Seven DICOM conformant review stations, currently in use at the Dutch cardiology departments, are tested in this study. The exchange of DICOM Cardiac cine's stored on CD-Rs appeared not to be without problems. The discussion refers to DICOM and non-DICOM properties that could play a role. A proposal for a minimal dataset for interchange is made based on Dutch daily practice.
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DICOM application profiler for modelling and checking DICOM datasets
Computers in Cardiology 1996, 1Co-Authors: M.h. Baljon, M.g.j.m. Gerritsen, F. Van Rappard, W.a. Dijk, N. Van Der PuttenAbstract:DICOM is a standard that is being used for exchange and storage of medical images and related information all over the world. In the Netherlands, a DICOM standardisation project has resulted in an application profiler for modelling and validating DICOM datasets on CD-R (CD-recordable) or other storage media. The development of this tool has proven to be extremely useful for increasing the knowledge of the DICOM standard both for technicians and for cardiologists. The validation of DICOM datasets has turned out to be a very critical issue for making sure that DICOM implementations make DICOM's promise of being open really come true.
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General DICOM PACS server for echocardiography images
Computers in Cardiology 1999. Vol.26 (Cat. No.99CH37004), 1Co-Authors: M.g.j.m. Gerritsen, W.r.m. Dassen, W.a. Dijk, N. Van Der Putten, H.j. Spruijt, E.j. Spruijt, G.j.n. Uijen, Ronald HamersAbstract:This study tackles a PC based general DICOM server for storage of studies acquired at all commercially available echocardiography workstations currently in use at the University Hospitals in the Netherlands. This storage can be done by media or network. For transfer via the network the DICOM storage communication protocol is chosen to import DICOM image objects. Via media, DICOM and other formats can be imported. A software module provides for automatic conversion to DICOM part 10 file format. The images are copied to the central repository and the ancillary data, encoded as DICOM tags, are stored to a relational database. References to the images are also table items of the same database. After query and retrieve via SQL, review with a generic DICOM viewer is possible on a routine basis at any PC in the hospital.
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A testbed project for DICOM images and waveforms integration
Computers in Cardiology 1998. Vol. 25 (Cat. No.98CH36292), 1Co-Authors: E.t. Van Der Velde, M.g.j.m. Gerritsen, N. Van Der Putten, H.j. Spruijt, H. Oon, A. Kleijhorst, G. De Steur, S. Meji, M.h. BaljonAbstract:Today, in many catheterization labs, angiographic images are stored in DICOM format on CD, and reviewed from this DICOM CD. However, in clinical practice it would be very, advantageous to be able to store and display the images together with the waveforms (ECG, pressure) recorded simultaneously in the cathlab. To this end, a new supplement will be added to the DICOM standard (supplement 30). To gain experience with this DICOM-WV supplement, and to get comments from prospective users, we have initiated a project to create combined DICOM data-sets and to develop a viewer for times-synchronized display of images and waveforms, based on a draft version of the new DICOM-WV supplement. The initial results show that conversion of the waveform signals to DICOM-WV format can be easily performed and that time-synchronous display of images and waveforms opens new and exciting possibilities towards a fully integrated digital cathlab laboratory. Future plans include include a more generic solution to the time-synchronization problem, inclusion of other image modalities such as echo, inclusion of annotations and events and integration with DICOM supplement 23 (structured reporting).