The ImageServer 1.5 release in July of 2009 contains support for a number of enterprise related features along with a number of usability improvements to the software. The key feature additions in the release include the following:
| • | Initial support for user logins to the Web GUI. For the standard open source version, a single user login specified at install time is supported. When configured with the Enterprise Server, multiple logins are supported with centralized user management and the ability to share login information across ClearCanvas applications. The Enterprise Server also supports customized authority groups and tokens to enable and disable web GUI functionality for different user groups. |
| • | Support for viewing of the log files via the web GUI. A mechanism has been developed to make the prior days logs available in the web GUI. The logs are then archived to one of the configured filesystems nightly. |
| • | A new Alert mechanism has been introduced to alert administrators when various errors have been encountered by the software. The alerts are viewable in the web GUI and can be dismissed from the GUI. The software can also be configured to archive alerts as they age off. |
| • | The following usability improvements have been made to the web GUI: |
| ► | Studies can now be searched for by Modality on the Studies page. |
| ► | The auto-refresh mechanism can be disabled on the WorkQueue page, and the refresh rate can be set on the page. |
| ► | The WorkQueue can now be searched using multiple status values and types. |
| ► | XML syntax highlighting has been added to the Server Rules configuration page when creating and editing rules. |
| ► | Paging on all web GUI pages has been improved. All pages now allow the user to skip to the last page of found results, or to skip to a specific page of found results. |
| ► | A new "Study History" tab has been added to the Study Details screen. This tab shows a history of reconciliation and prior edit information for a study. |
| ► | Added the ability to view the details of a Study from the Archive Queue and Restore Queue pages. |
| ► | Added the ability to reset failed Archive Queue entries to Pending to be reprocessed. |
| • | The old "Accept Latest" duplicate SOP policy has been removed, and the "Compare Duplicates" policy has been integrated into the Study Integrity Queue. When using the "Compare Duplicates" policy, when a duplicate SOP Instance has been received (ie, and image has been sent to the ImageServer more than once), the ImageServer will compare duplicate SOP Instance to the original SOP Instance received. If the SOP Instances are the same, the duplicate will simply be deleted. If they are different, an entry will be created in the Study Integrity Queue, and the user can select if the duplicate SOP Instances will be used, or if the original SOP Instances should be used. |
| • | A feature has been added that allows the ImageServer to keep track of deleted studies for auditing purposes. |
| • | Added support for DICOM Supplement 95 compliant Audit Trail logging in the Enterprise version. |
| • | Added support for JPEG 2000 Lossless and Lossy Compression using the Accusoft Pegasus PICTools library to the Enterprise version. |
| • | Added mechanism to allow compression of studies when they are initially processed. A SOP Processed rule can be defined to compression individual images as they are being processed. |
| • | Implemented a new feature that allows importing of studies into the ImageServer by just copying the files within a study to a folder on one of the configured filesystems. |
| • | Added a new <not> operator to the rules engine. |
| • | Added the ability to enable and disable Zip compression of studies for the HSM Archive. Also updated the Zip library used for archiving studies to support Zip64 for large studies that exceeded 4GB in size when zipping. |
| • | Introduced a mechanism for rebuilding Study XML files for filesystems on the Service scheduling page. |
| • | Added support for embedded DICOM overlays when streaming studies from the ImageServer to the ClearCanvas Workstation. |
| • | Added new auto-recovery mechanism for failed WorkQueue items. Most WorkQueue items now verify the contents of the study on disk after processing has completed. If errors are found, a Reprocess Study entry is created in the WorkQueue, and the ImageServer will attempt to repair the problems. If files are deleted or other significant errors are found, an Alert is created. Studies can also be reprocessed on demand to repair problems. |
| • | Numerous bug fixes and improvements in reliability. |
