Dimedris is a program for evaluation of MRI (Magnetic Resonance Imaging) images obtained by MRI device Siemens 'Impact Expert' and similar devices. Images made on this device have '.ima' extension. This special format can not be read with any available freeware MRI viewer. It is significantly...
It is actually the free version of an expensive DICOM viewer called Osirix MD, which is often considered to be the best DICOM viewer for Mac. It only runs on Mac OS, version 10.8 or higher. This software allows for most diagnostic techniques, including multiplanar reconstruction, maximum intensity projections, and volume rendering. Dicom Reader Mac Os X; Online Mri Reader; Acrobat reader 10 for mac. How to Read an MRI. An MRI machine uses a magnetic field to produce detailed images of the brain, spine, heart, bones, and other tissue. Most modern MRI centers can give you a copy of your MRI on a disc or flash drive after your. Our pick of the best free DICOM / PACS viewers.
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Are you still annoyed about inexhaustible reports? Are you still plagued by the contradictions between report quality and report-making speed? Now, all of these are no longer problems. This software, using advanced visual chromatographic transformation program which conforms to human color...
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The three-dimensional viewing of MRI images can help understand the position of (double) oblique slices as often used in cardiac MRI.The function returns a figure handle which can be used as input argument to display a second slice in the same figure. the other output is a handle for the slice...
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AD Picture Viewer is the fastest, easy-to-use and compact image viewer available for Windows platform. It allows you to view, print, organize and catalogue your image collections with ease. This program supports all popular graphic formats (BMP, JPEG, GIF/Animated GIF, PNG, PCX, TIFF, TGA, etc),...
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Picture Viewer Max will Find, Display, Edit, Print, Organize, and E-Mail Images and Pictures. You can also find and play multimedia files, including Audio Video and MP3 files. A Slide Show is included that provides you with hundreds of transitional effects between picture viewing, and plays MIDI...
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Image Viewer is the powerful, compact and easy-to-use image viewer you can use. With Image Viewer you can do the following:- 1- Open a lot of image file formats like JPG,BMP,GIF,TIFF,PNG,PSD,PCX,TGA,WMF,EMF,WBMP,ICO,DIB. 2- Open images also from URL and save them to your disk. 3- Save to several...
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Advanced Image Viewer and Converter is a powerful image viewer, converter and manipulation tool. It supports more than 50 popular raster, vector and animated image formats. Extra functions: encrypting and decrypting your private images, batch converting and renaming image files with specified...
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DBF files have been the standard format for database management systems ever since dBase III was released in 1984. In the decades since, this format has been adopted by several variations of dBase known as xBase, causing it to remain one of the most widely used database formats in the present...
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Free DWG Viewer will open native DWG, DXF, and DWF files for viewing, along with accompanying Xref files. It will also open Informative Graphics' own 'content sealed' (CSF) file format, which is generated by the company's Net-It® publishing products and featuring Visual Rights™ security...
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File Viewer is an multi purpose Disk/File Management Program with functions for finding, viewing, printing, emailing, and organizing Pictures, Images, Text, Documents, Database, and Spread Sheet Files. Multimedia Files, including MP3, AVI, MPG, MP4, FLV, MOV, WMF, WMA, MID, RMI, and WAV, are...
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Mindex Viewer-SlideShow creates dazzling musical photo/video SlideShows-Screen Savers with 113 Intro- & 80+ Transition-Effects. Auto or programmable mode. Support music, voice-over, sound effects, video. 3-D font caption with effects and animation!. Free Player for CD distribution. Fast...
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View AutoCAD drawings with this free DWG/DXF/DWF viewer. The DWG Viewer is a small application wrapped around an ActiveX component. This allows it to run as a Windows application and in your browser. The ActiveX control requires Internet Explorer 4.x or above and Windows NT/95/98/2000. You can...
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Paraben&aposs Image Viewer is a powerful image viewer. If you have any image on your computer, you&aposll want this easy-to-use viewer to display your images in thumbnail format, as a slideshow, or even to convert images to other formats. View images in full screen mode, attach descriptions to...
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Paraben&aposs Image Viewer is a powerful image viewer. If you have any image on your computer, you&aposll want this easy-to-use viewer to display your images in thumbnail format, as a slideshow, or even to convert images to other formats. View images in full screen mode, attach descriptions to...
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ReaViewer is fast, flexible and compact image viewer. Additional features include slide shows, various format conversions (JPG, GIF, PBM, PGM, PNG, PPM, TGA, TIF, BMP ...) and photo enhancement tools. You can rotate, mirror, change height, width and color resolution of your image, change...
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Inzomia image viewer 3 is a very fast free zooming image viewer that will allow you to spend more time viewing pictures and less time waiting. Stop waiting for images to load, the inzomia image viewer prepares the next image in the background as you are viewing. Use all the screenspace for...
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Advanced Viewer is a powerful and easy-to-use image viewer for Windows 98,ME,2K,XP. Some of its possibilities: Viewing images: JPEG,PNG,TIFF, GIF,BMP,PCX, TGA,ICO and other. Playing media: AVI, MPEG, MP3, WAV,SWF and other. File browser: file operations, converting, slide show. Printing &...
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Jpeg/gif/bmp/tga Image file viewer with slideshow, visual thumbnail index, one-click file categorization, catalog image generation, slideshow mode, encryption and privacy features, printing, and many more special features. Very easy to use. 32-bit version supports windows 95, 98, NT, XP, and 2000.
Platforms: Windows
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DICOM and DICOM Browsers
The digital imaging and communications in medicine (DICOM) standard was created by the National Electrical Manufacturers' Association (NEMA) in order to improve compatibility and workflow efficiency between imaging systems, medical devices, and other information systems used in a hospital environment. This has become the principal standard for the communication of medical images and is now implemented by virtually all medical imaging equipment manufacturers.
Image files that conform to the DICOM standards are commonly referred to as DICOM-format images. The basic difference between a DICOM image and an image in other formats like JPEG, TIFF, or GIF is that the DICOM image contains a ‘header’ with information (such as patient demographics, machine, scan parameters, and a host of other non-image data) in addition to the image data. Thus it is possible to identify the origin of the image, the patient, data acquisition parameters of the study and so on, even if a single image is analyzed in isolation. The adoption of DICOM standards by medical imaging equipment vendors has helped in effective cross-machine communications and made possible integration of imaging equipment from different manufacturers.[1]
Although DICOM is the accepted standard for the storage and networking of medical images, the image is encoded in a format that cannot readily be viewed on an average personal computer (PC). Viewing these images outside the radiology network still requires printing of the images on hardcopy films. With the fall in prices of hardware and peripheral devices, computers with high-end hardware specifications are available at affordable prices. To view DICOM images on PCs, dedicated DICOM browsers are needed. Though these softwares are available from several vendors, they are expensive and beyond the reach of the average radiologist.
Several freely downloadable DICOM browsers, which can be easily integrated into a radiologist's practice, are available via the Internet.[2–] This article describes the applications of a few DICOM browsers in clinical radiology and imaging research and evaluates their merits and demerits in common radiology applications (Appendix 1).
Free DICOM Browsers Available Online: A Functional Classification
The DICOM browsers can be broadly and functionally segregated into four groups: for viewing DICOM images, for teaching, for use as mini-PACS servers, and for research purposes. Let us examine each of these individually.
DICOM browsers for basic viewing of DICOM images
The simplest and most intuitive application of DICOM browsers is to view images on stand-alone systems that are not a part of a radiology network. Most equipment manufacturers offer the option of archiving imaging data on compact discs (CDs) which can be transported, stored, and reviewed easily. Though a proprietary DICOM viewer is written into the CD along with the image data, it is often limited in its functionality. Using a DICOM browser of one's own choice permits the use of a set of tools suited to one's needs, irrespective of the source of the imaging data. It must be remembered that most freely downloadable software is intended for educational purposes and is not custom built for medical diagnosis or commercial purposes.
Most browsers in this category [Table 1] provide basic image-processing functions, such as the ability to adjust image contrast and brightness, to magnify, to perform measurements (distances, angles, areas, pixel values, etc.), to change image orientation, and the ability to annotate. Studies containing a time series of image data need a ‘cine’ viewer with the ability to change the frame rate. Another useful tool is the ability to simultaneously load and compare two sets of images (available with Jivex [dv] viewer and Sante DICOM viewer); this is usually necessary when looking for enhancement on post-contrast studies and to check for response to therapy. The ability to view the localizer/scout view, along with a specific image, is a feature of Sante DICOM and Jivex [dv] viewers as well.
Table 1
| Free DICOM software | Web address | Free/limits | DICOM query | Thumbnail view | Display layout | Flip/rotation | Invert b/w | Linear measure | Angle measure | Cine viewer | Compare view | Scout localizer support | Software required | Additional features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3D-Doctor Viewer v 4.0.070803 | http://www.ablesw.com/3d-doctor/get3dview.html | Free | No | No | 1 × 1 | No | No | No | No | Yes | No | No | None | Full version is an advanced 3D visualization and processing tool |
| CarDiCon v 1.53B | http://fhs-consulting.com/cardicon/E_cardicon.html | Free | No | Yes | 1 × 1 | No | No | No | No | Yes | Yes | No | None | Primarily a browser for angiographic studies |
| DCM View | http://www.rmrsystems.co.uk/dcmview.htm | Free | No | Yes | 1 × 1 to all-in-one | No | No | No | No | No | No | No | None | No installation. Small program |
| DCM Vista v 3.2 | http://www.charruasoft.com/downen.php | Free | Yes and data import function | Yes | 1 × 1 to 4 × 5 | Yes | Yes | Yes | No | Yes | No | No | None | No installation. Small program |
| Dicomlight v 5.4 | http://www.charruasoft.com/downen.php | Free | No | No | 1 × 1 to 4 × 5 | No | Yes | No | No | No | No | No | None | No installation. Small program |
| DICOM Scope v 3.5.1 | http://dicom.offis.de/dscope.php.en | Free | No | No | 1 × 1 | Yes | Yes | Yes | Yes | No | No | No | Java | Offers structured reporting |
| ImRead DICOM Viewer | http://www.uchsc.edu/sm/neuroimaging/download/imread/imread1.htm | Free | No | No | 1 × 1 | Yes | No | No | No | No | No | No | ||
| Tomovision | http://www.tomovision.com/ | Can open only five images at a time | No | No | 1 × 1 | No | No | No | No | Yes | No | No |
DICOM browsers useful for teaching
Of late, more and more departments are beginning to use electronic media for teaching. The rising cost of x-ray films and the ease with which digital images can be archived, queried, retrieved, and presented, have seen the gradual replacement of the ‘departmental film library’ by a ‘virtual library’ of ‘teaching collections.’ The greatest advantage of creating digital teaching files is the ease with which they can be stored and distributed.
The database of a single server can hold much more image data than several rooms containing shelves and shelves of ageing and disintegrating radiographs and this data can be accessed simultaneously by several users across a network or over the World Wide Web. The addition of non-radiological medical images, such as clinical photographs, endoscopic views, and photomicrographs, enables the creation of a comprehensive multimodality teaching file.
Images in DICOM format are usually converted to other image formats such as JPEG, GIF, or TIFF prior to creation of the teaching file. These formats are more compact than the original image and are recognized by most non-medical image management software that can be used to create teaching files and albums. Software for this purpose must have the capability to adjust image quality, size, and resolution [Table 2]. Batch conversion of a series of images saves the operator from having to vary the window level and width in individual images; (this feature is available with DicomWorks.) The ability to produce movie files from a series of individual images (a feature available with CarDiCon and DicomWorks) and to visualize 3D data (which is possible with 3D Doctor Viewer and FP Image Viewer) are an added advantage.[]
Table 2
| Free DICOM Software | Web address | Input format | Thumbnail view | Display layout | Flip/rotate | Invert b/w | Text annotations | Measurements | Cine viewer | Export Formats | Annotations Off | Additional software required | Additional features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Radfiler DICOM for PowerPoint | http://www.radfiler.com/ | DICOM | No | 1 × 1 | No | No | No | No | No | No | No | Microsoft PowerPoint | Provides DICOM functionality within a presentation |
| DicomLitev1.01 | http://www.3d-head.com | DICOM | No | 1 × 1 | No | No | No | No | No | TIFF | No | None | No installation. Small program |
| DCM2JPG | http://www.sph.sc.edu/comd/rorden/ezdicom.html | DICOM | No | No | No | No | No | No | No | BMP, JPEG | No | None | Command line conversion to JPG/BMP formats |
| DICOM Browser from FP Image | http://www.fpimage.com/info.html | DICOM | No | 1 × 1 | No | No | No | No | No | JPEG | Yes | ||
| DicomWorks v 1.3.5 | http://dicom.online.fr/ | DICOM | No | 1 × 1 | No | No | No | No | Yes | JPEG, AVI | Yes | MPR and CMPR Recon of 3D data, Direct e-mail of images | |
| Eviewbox | http://eviewbox.sourceforge.net/ | DICOM | Yes | Auto | No | No | No | No | Slideshow | GIF | No | Java | MPR and CMPR Recon of 3D data, Direct e-mail of images |
| ezDICOMv1.0 | http://www.sph.sc.edu/comd/rorden/ezdicom.html | DICOM, Medical image formats | No | 1 × 1 | No | Yes | No | No | No | BMP, JPEG Medical image formats | Yes | None | Primarily aimed at converting data into other medical image formats |
| ImageJ v 1.38x | http://rsb.info.nih.gov/ij/ | DICOM | No | 1 × 1 | Yes | No | Yes | Yes | Yes | JPEG, GIF, TIFF, BMP, PNG, AVI | No | Java | Image Stacking, reslicing, Z-project, 3D Project, |
| ImRead DICOM Processor | http://www.uchsc.edu/sm/neuroimaging/download/imread/imread1.htm | DICOM | No | 1 × 1 | Yes | No | No | No | No | JPEG, TIFF | No | Java | Small program |
| IrfanView v 4.1 | http://www.irfanview.com/ | DICOM | No | 1 × 1 | Yes | Yes | No | No | Slide-show | Can be converted into a large number of image formats | No | Additional plugin | Image management software with DICOM image support |
| JiveX [dv] Viewer v 4.2.1 | http://www.visus-tt.com/DICOM_Viewer.59.0.html | DICOM images | Yes | 1 × 1 to 4 × 4 | Yes | Yes | Yes | Yes | Yes | image, matrix, series disabled | Yes | Java version 1.4 | Save presentation state to unique format; needs key |
| MEDISP v 1.0.2 | http://medisp.bme.teiath. gr/downloadMEDISPDI-COMViewer.htm | DICOM | Yes | 1 × 1 to 4 × 4 | Yes | Yes | Yes | Yes | Yes | JPEG, TIFF, BMP, PNG, AVI | Yes | None | |
| Osiris v 4.19 | http://www.sim.hcuge. ch/osiris/01 _Osiris_Presentation_EN.htm | DICOM | No | 1 × 1 | Yes | Yes | Yes | Yes | Yes | JPEG, BMP, TIFF, AVI | Yes | Yes | No |
An earlier publication has described the integration of DICOM viewer functions into Microsoft PowerPoint presentations by the installation of ActiveX components and add-ins.[] A freely available software - Iconotech[7] - is now available to help compile a database of teaching files, incorporating patient demographic information, clinical details, imaging findings, diagnosis, as well as bibliographic references, along with DICOM images. Presentation as teaching cases as well as in the form of quizzes, is enabled in this software.
It must always be remembered that when an image is being stored for teaching purposes or for publication, it is essential to hide the demographic information on the image. In most browsers it is possible to turn annotations off while the image is being exported into a different format, to maintain patient confidentiality. Some browsers also have the ability to alter certain tags in the DICOM header so as to introduce information into the image to help in organizing the teaching file.
Free Mri Reader Mac
DICOM browsers for mini-PACS servers
A direct extension of the capabilities of a DICOM browser would be the ability to access, store and retrieve, transmit, display, and process images that were generated by DICOM-compatible equipment. Softwares in this category range from simple solutions called mini-PACS to extremely complex systems that interact with the hospital information system/radiology information system (HIS/RIS), electronic medical record systems, and web servers. Essential features of such softwares include the ability to access DICOM data available on a local or network drive and to search for DICOM data within hard disks, folders, and CDs, using patient name, study number, study date, or other queries. Examples of software available on the web that can be used for such applications include CharuaPACS,[8] Dicomscope,[9] KPACS,[10] Tudor DICOM Viewer,[11] and Sante DICOM Viewer.[12]
The setting up of such a system and its integration with the imaging equipment usually requires the help of a network administrator. Such software can also be of use for arranging viewing stations for monitoring imaging studies from the radiologist's office, for printing images using DICOM printers or paper printers, and for teleradiology.
DICOM Browsers for Research Applications
Anonymization of the DICOM header is of vital importance in medical research, where the identity of the patient and the participating institution needs to be removed from the DICOM header [Table 3]. There are several software programs that can be used for extraction and analysis of structural and functional imaging data. These programs have been developed for applications such as image segmentation, registration with atlases, contour generation, texture analysis, computer-aided diagnosis, volumetric studies, and relaxometric studies. As some of these programs are designed to run on image data in non-DICOM formats (such as Analyze and NIFTI), DICOM data needs to be converted using applications such as MRIcro. A review on freely downloadable software for offline analysis of structural and functional neuroimaging data can be found in a future issue of this journal.
Table 3
| Free DICOM Software | Web address | Free/limits | Input format | DICOM query | View DICOM Info | Edit DICOM Info | Anonymize | Export function |
|---|---|---|---|---|---|---|---|---|
| DICOM Browser FP Image | http://www.fpimage.com/info.html | Free | DICOM | No | Yes | No | Yes | JPEG |
| DicomWorks v 1.3.5 | http://dicom.online.fr/ | Free | DICOM | Yes | Yes | No | Yes | JPEG, AVI |
| MEDISPv 1.0.2 | http://medisp.bme.teiath.gr/downloadMEDISPDICOMViewer.htm | Free | DICOM | Yes | Yes | No | Yes | JPEG, TIFF, BMP, PNG, AVI |
| MRIcro v 1.4 | http://www.mricro.com | Free | DICOM and other formats | Yes | Yes | No | Yes | Conversion into a wide variety of medical image formats for functional analysis |
| Same DICOM Viewer 6 (Demo mode) | http://users.forthnet.gr/ath/mkanell/ | Unlimited time with watermarks and options disabled | DICOM and DICOMDIR | Yes | Yes | No | Yes | Watermarked JPEG, TIFF, BMP, PNG, HTML, AVI |
Summary
There is a large array of DICOM browsers that can be downloaded from the Net free of cost. These can prove to be effective alternatives to commercially available programs and radiologists can implement these solutions to augment their clinical practice, taking into consideration their individual requirements as well as the software's functional capabilities and limitations.
Appendix 1: Testing Methodology of Free DICOM Browsers
For the preparation of this article, software for viewing and processing DICOM image data, that can be downloaded free of cost, was evaluated on a notebook computer with a 1.73 GHz Intel Centrino processor, 1GB RAM, and Microsoft Windows XP Professional operating system.
As on 25 Oct 2007, most browsers were available as a simple download link, while a few required online registrations to unlock certain features. All programs were simple to install. A few programs required the installation of additional software (such as Java Runtime Environment) that is available on the web.
Softwares that require compilation before use, handle proprietary and non-DICOM medical image formats, and run on other operating systems have been excluded from the review.
All softwares were evaluated independently by an experienced radiologist and a trainee radiologist for features such as ease of installation, range of tools available, and the relative ease of operation. Though some browsers were able to process non-DICOM image formats as well as proprietary image formats, these capabilities were ignored for the purpose of this review.
Though every attempt has been made to keep the information about these browsers accurate and up-to-date, variations in host computer specifications and periodic software updates may cause inconsistent browser functionality. Readers are urged to study the relevant up-to-date documentation regarding these browsers.
Footnotes
Source of Support: Nil
Conflict of Interest: None declared.