EasyViz DICOM Viewer - The Technology
The medical imaging market has experienced a growing need for providing access to image data outside of radiology departments. Clinicians want instant and secure access to images and reports from anywhere inside or outside the hospital facility, without compromising image quality or reducing available clinical functionality. EasyViz DICOM viewer provides this.
Developed by Medical Insight, EasyViz is based on Server-Side Computing and proprietary technology called Adaptive Streaming. As an example of the specialized, powerful methods employed by Adaptive Streaming for the handling of medical image data and analysis functions, consider the following common scenario:
A clinician analyzing CT images
A clinician is analyzing a stack of 2D images from a CT scan of a patient – specifically, the clinician is modifying the window width/level for a particular slice in order to get a better look at a suspicious area.
Adaptive Streaming handles this scenario by using the power of the server to perform window width/level modifications. The modifications are then transferred to the client via mathematical formulae, indicating how to modify the display. This process occurs each time the user modifies the window width/level values.
While the width level is being modified, the Adaptive Streaming method does not send frame images from the server to the client each time the image brightness or contrast changes. Rather, a CODEC is used such that a formula is sent that specifies in a predictive manner how pixel values should be modified on the client. This transmission of a formula is significantly smaller in size.
Illustration A shows that all computations are performed on the server, and specialized formulae are transferred to the client indicating how to update the display on the client to match the server state. In B1, the clinician has a specific slice from a scan on the screen. In B2, the clinician has modified the window width/level of the same slice and only the changed pixels have been streamed to the screen. All other elements of the image remain unchanged and do not take up unnecessary bandwidth.
To learn more about Medical Insight’s Advanced Adaptive Streaming Technology, click either of the links below.
Adaptive Streaming – Overview of Concept and Technologies
What are the benefits of Adaptive Streaming?
Adaptive streaming provides clinical staff with ultimate remote access to full DICOM-quality images from any location outside the hospital enterprise, even over very low bandwidth (2Mbps) connections and in heterogeneous IT environments. The technology increases daily workflow efficiency and fully supports telemedicine and tele-collaboration by providing instant, remote access to patient images, without compromising functionality and image quality. Patient images are directly streamed from a central hospital’s EasyViz server to a client’s computer through a fully encrypted connection, providing complete security and saving valuable storage space on the client side as the images never leave the hospital’s server.
To learn how Adaptive Streaming incorporates into an everyday workflow, view our EasyViz system Architecture examples.
Interested in EasyViz? Go to our Try EasyViz page and fill in your details to obtain a free, two week trial of the full-featured EasyViz program.