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Flywheel Core 21.1

21.1.0

FEATURES

LDAP Sync

The Flywheel Core API and LDAP Sync service have been updated to support matching users on non-email formatted User IDs via a new Flywheel user field.

Note

LDAP Sync is a legacy Flywheel service, and supported only on sites where it is already in use.

  • Flywheel user records gain a new (optional) ldap_sync_id field.
    • It can be set and viewed with the Web UI and existing user management APIs.
    • It must be unique for each user on the site.
    • Once set, it cannot be changed.
    • While set, LDAP Sync treats it as the primary matching Flywheel User key
    • While unset, LDAP Sync falls back to pre-existing user matching criteria.
    • It is set automatically for users added by LDAP Sync.
  • LDAP Sync treats sAMAccountName as the primary matching LDAP User key. This is configurable.
  • Audit Trail reports include ldap_sync_id in addition to the Flywheel User ID.

Viewers

V3 Viewer

  • The 2D annotations have been significantly improved in this release to provide a better user experience with annotations workflows:

    • Annotations are now saved as "measurements sets" in the Flywheel database, and a summary can be viewed at the file level in Flywheel.
    • Multiple measurements sets can be loaded or created for the same image file to allow comparison between annotations from different users.
    • Annotations can now be created on multiple image files simultaneously in the viewer.
    • Annotations can now be grouped under the same label and area is aggregated for each label.
    • Option to automatically assign new annotation to the active label.
    • Colors can be assigned to each annotations label.
    • Undo/redo functionalities are now available to quickly correct any mistake.

  • Improvements in 3D segmentations capabilities:

    • Undo/redo functionalities now allow to experiment with segmentation and quickly correct or adjust any mistake.
    • New option to automatically turn the brush tool into an eraser when the mouse cursor is outside a segmented region.
    • Metrics are now available for each region of interest.

FIXES

Compute and Analytics

  • Fixes a race condition in the timeout and retry logic for collecting gear logs and execution health status, introduced with the compute reliability improvements in version 20.6.

Data Transfer

  • Significantly improved speed of Bulk Export and Import jobs to and from "My Computer" by removing performance bottlenecks.
  • Fixed an issue where Bulk Export or Bulk Import jobs may fail unexpectedly on sites with an extremely large number (>400) of External Storage registrations.
    • This issue was caused by the system performing status checks for all storages at the same time, resulting in the system running out of memory.
    • Storage checks now run less frequently and at slightly different times (random jitter) to prevent concurrent execution. Additionally status checks for File System storages are now performed sequentially.
Bulk Export
  • Fixed an issue with Bulk Export to "My Computer" where files downloads are significantly delayed if unzipping is disabled.
  • Fixed an issue where Bulk Export to "My Computer" with unzipping enabled fails due to the system running out of memory when processing ZIP files containing large (>200 MB) individual files.
  • Fixed an issue with Bulk Export to "My Computer" where downloads would fail for large projects (>40 GB) due to resource constraints on users' local machines.
    • The solution includes improved memory usage, additional indexes, and other refactoring.
    • As a side effect of this fix, downloads now transfer the data directly to disk instead of first pre-zipping files before transfer.
    • As an extra benefit, this fix also enables better support for resuming interrupted transfers.
  • Fixed an issue where Bulk Export to "My Computer" would fail for larger files (>300 MB) due to HTTP 416 errors related to multi-part range requests.
    • Added additional logic to fall back to single-part downloads when multipart range requests fail to improve reliability.
Bulk Import
  • Fixed an issue with where Bulk Import jobs fail early due to the malware scanner failing to start up.
  • Fixed an issue where Bulk Import jobs may fail in certain circumstances due to running out of disk space due to an accumulation of temporary files.
  • Fixed an issue with Bulk Import for sites hosted in Azure where the completed files popup incorrectly displayed "0 B completed" instead of showing the actual uploaded file size.
    • This issue only affected Flywheel Core sites hosted in Azure.
  • Fixed an issue with Bulk Import with metadata where classification and modality information was not imported from metadata sidecar files.
External Storages
  • Revised the error message displayed when creation of an External Storage registration fails for due object storage bucket names exceeding the 63-character limit.
    • The error now clearly indicates the character limit and advises users to move path components to the Prefix field instead.

JupyterLab

  • Fixes the formatting of items in the Launch JupyterLab Server menu.

Viewers

V3 Viewer
  • Fixed an issue where switching between a common layout and an advanced layout would create a duplicate of segmentations in the segmentation panel.
  • Fixed an issue where the perimeter value from the freehand tool was incorrect.
  • Fixed an issue where segmentations saved on Philips MR data could not be re-opened.
  • Fixed an issue where a user would become unable to draw ROIs after switching between some of the advanced layouts.
  • Fixed an issue where measurements would incorrectly be moved to the same slice upon saving in MPR mode for multi-frame data.

Web UI

  • Fixes an issue where some Site Admin pages could rendered for authenticated users without the Site Admin role. The pages were not fully functional, and could not result in a user gaining unauthorized access to information, or administrative actions.

21.1.1

FIXES

Viewers

V3 Viewer
  • Fixed an issue where new measurements would not be assigned the active label with the Map to Active Label option enabled.
  • Fixed an issue where new measurements added to a label would not be assigned the new label color if it was changed from the initial color.
  • Fixed an issue where all labels would show with the same color when loading an existing DICOM Structured Report.
  • Fixed an issue where site administrators would not be able to see the annotations quick view for image files without having permissions to the relevant project.

21.1.2

FIXES

Data Transfer

Bulk Export
  • Fixed an issue with Bulk Export where exports of very large projects would fail due to memory issues when reading large export snapshot files (3-4 GB).

Data Management

  • Fixed an issue where creation of access logs for projects with many subjects was too slow due to a missing index.

Project Smart Copy

  • Improved internal service retry logic and logging for Project Smart Copy failures due to intermittent network errors.