Imaging software vendors

Many databases can be classified in multiple ways because of multiple type data, eg, text and numeric data, text and image data, image and audio data, etc. Also included in the data presented in Table 1 are two additional classes of databases, electronic services and software. Both of these data types could also be classed by form of representation because of use of words and numbers. However, the way in which these databases are used is different and they have special characteristics. Thus they are presented as additional classes. Whereas electronic information services such as bulletin boards, electronic mail, and electronic conferencing contain data that are transitory and nonarchival, these must be included among databases because several of the principal vendors seU these services in the same way as database search services are sold. 

Another expensive factor of HCS is software. All HCS instruments have on board tools for image analysis and various level of sophistication for data analysis and viewing. Often image and data analysis is done after the acquisition of the screening plates in order not to slow down the microscope. Vendors therefore offer off-line licenses increasing the cost of software further. The image analysis software installed on instruments is often restricted in functionality to deliver easy-to-use software, although some vendors... 

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Commercial vendors provide software for acquisition, processing, storage, and display of images specially designed for their scanners. Such software is either developed by the vendor or acquired from a third-party software developer. These types of software use a proprietary format for each vendor, and it... 

Currently, all vendors provide software conforming to the DICOM standard, and agree to a commitment to that effect to all customers. Compliance with this standard establishes a common format for imaging systems connecting hardware and software components, and allows interoperability for transfer of images and associated information among multiple vendors devices. The DICOM standard is particularly useful in the implementation of the Picture Archival and Communication System (PACS), which is discussed here. 

Attenuation correction factors are applied to acquired PET data (Step 15). PET images are then reconstructed from corrected data using either the FBP or the iterative method depending on the vendor s software. 

Commercial software suppliers use different mathematical methods. In the past some have incorporated the maximal slope method although new versions are frequently released and the reader is advised to check for the most up-to-date software from each vendor. Others have typically used deconvolution techniques, which, although theoretically superior to nondeconvolution methods - as has already been and will again be noted, the full clinical implication of using these different models has yet to be established and standardized by the stroke imaging community. 

Access to raw data is enabled in two steps the vendor enables a node on the X-ray system to which raw data can be sent, and at this node, a DICOM receiver (Jacobs et al. 2006) receives the QC image and extracts a series of data out of all relevant incoming raw data. By convention, the patient name tag is used to distinguish between an image for QC purposes and any other image. In practice, patient dose data analysis can also be performed on routine patient images using the same DICOM receiver software tool. 

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