Showing posts with label workflow. Show all posts
Showing posts with label workflow. Show all posts

Wednesday, April 16, 2014

Impact of cross-enterprise data sharing on portable media with decentralised upload of DICOM data into PACS

Abstract

Objectives

To evaluate portable media utilisation for image data sharing between enterprises. To predict the costs required to keep up with the trend. To identify related problems.

Methods

A software package was developed to include patient image data from CD into our normal workflow. The trend in the workload of CDs that were uploaded into a Picture Archiving and Communication System (PACS) over 89 months was analysed. The average number of images per month (and per investigation) was calculated to provide the estimation of storage and cost required in the whole process.

Results

All Digital Imaging and Communications in Medicine (DICOM) files can be read from compact disc (CD) on any workstation in the hospital, processed quickly to the central server and checked after storage using the software tool. A total of 33,982,404 images from 88,952 CDs have been stored into the PACS system. In recent years, the stored images have reached an average of 4.2 terabytes (TB) uncompressed annually.

Conclusion

Integrated information about patients is clearly needed to provide easy and timely access to these data. The steadily growing storage can be solved by a more automated approach to portable media handling or the installation and acceptance of network-based transfer using cross-enterprise document sharing (XDS).

Monday, March 10, 2014

ECR 2014 - RC1605 - Improving workflow efficiency and quality 1

decision support in radiology is required because of the large variety of examinations. For example, double scanning rates can go up to 30% and many unnecessary exams are conducted. The decision of the appropriate imaging is heavily depending on the availability of the clinical inforrmation to properly use scoring lists to determine the optimal imaging. 
The challenge with implementation of computerized physician order entry is the availability of proper rules and guidelines.
The ACR has developed an IT solution to provide decision support in the US with a commercial product called ACRSelect that can be used as a stand-alone, web based, or EPR integrated solution.
In Europe decision support is hampered by te variety in countries and languages. Only the UK and France have guidelines and recommendations but because of the wide variety between the UK and France guidelines, the ACR approach is adopted. There is interest to develop a set of global guidelines together with ACR. 
CDS could help improve medical quality and effiiciency, avoid unnecessary imaging thus reducing cost and reducing radiation exposure.

Thursday, June 27, 2013

CARS 2013 - Image Processing Workflow and Management in Clinical Practice


Regge gave an interesting presentation on getting from bench to desktop with image processing illustrated with his own example on CT colonography. His take home points are that an Imaging lab should be embedded in a cliinical unit, should be cautious with industrial partners, and must start from a clinical problem and build the software on that problem.

Glinkowski presented about what information the clinician really needs. The questions a clinician asks are: what? Where? How? Decision making - what to do? In answering these question the clinicians are heavily depending on imaging an Radiology is essential in answering many of the questions a clinician may have in a muti disciplinary collaborative effort to get the optimal outcome for the patient.

Where we stand on costs and reimbursements of image processing was the topic of a presentation by Turchetti. He started to show that the total healthcare expenditure in Europe and the US is increasing. First cause of this increase is innovation because of growing indications and applications of the innovations, growing area of treatable conditions, increasing use of technologies for the same conditions with less discomfort, broadening definition of diseases and life extending effects. Note that all issues are positive: we live longer and better... Most countries try to tackle these issues with increasing efficiency, redesign of the supply side (closing hospitals, reducing beds, etc), regulation of price and/or quantity of services, and the reduction of the services granted for free and introduction of higher level of co-payment.
The reimbursement mechanism could stimulate efficiency and reduce the opportunistic behavior of hospitals. But if not used properly it could impede the transfer of innovation to the clinical practice.
Studies to calculate real cost of procedures should be promoted and reimbursement should be defined accordingly. Define for which indications the image processing is approriate from a clinical point of view and from a cost effectiveness point of view. Cost and reimbursement should be properly aligned.

In the next presentation Fatehi discussed the composition of the image processing research team including the clinician, radiologist, radiographer, computer scientist, biomedical engineers, and ... He stated that image processing reeserach is done to answer a clinical need, to refine engineering methods and to support management. As stated already many times during the conference he also stresses that imaging research should be a multi-disciplinary effort. The cooperation should include the following topics.

Clinical to Technical:



  • Defining the clinical question

  • Defining the components of the applications

  • Providing the most relevant datatsets

  • Defining the workflow before and after the image processing

  • Validating the test protocol

  • Improving the user interface

Technical to clinical:



  • Specify potential methods to achieve the clinical goal

  • Specify technical limitations of implementing the application development

  • Provide a comparative list of already tested methods in the literature

  • Translating the clinical workflow into an engineering language with technical block diagrams

  • Keeping engineering standards in the final product/application

  • Taking care of the integration issues

  • Taking care of the licensing issues

  • Providing information about open source to avoid high costs.


Finally, Schilling presented on bridging the radiology/surgery gap. He advocated the introduction of new visualization protocols with higer dimension imaging with direct interaction with the data using easy to use devices. They want to have intuitive 2D and true 3D. Clinical efficacy and worflow can both be optimal using true 3D.

CARS 2013 - PACS Workflow


In a presentation from the Neterlands, Jorritsma discussed the necessity to introduce usability to the PACS selection process. He stated that in PACS replacement functionality is regarded but not usability, while this should be a major criterion in the PACS selection process. Subjective measures should be complemented with objective usability data to be valuable in the selection process.

Next, Procida from Italy presented on 'PACS independent and IHE-like approach method for the analysis of PACS in a healthcare enterprise'. they noticed that the hospital had over 100, high cost, workstations connected to the PACS. However, the usage of these systems is unknown and many of them might be used only for a small part of the time. The display on/off status was recorded in a database and provided the possibility to record system usage. This method was limited by the fact that the displays had a delay of 10 min inactivity before they turned off automatically. The IHE ATNA (Audit Trail Node Authentication) profile was utilized to determine the exact use of the workstations since information about each exam view was recorded with the user information. A more accurate status was obtained with this second method about the workstation usage per workstation. This allowed reallocation and discontinuation of underused, high cost, workstations. Proposals are made to the IHE to adopt the ATNA profile to fully support this non-intended but very interesting use.

Final presentation was from Japan, presented by Ito on the improvement of clinical workflow of thoracic surgeons in distant hospitals by interactive teleconference using open source software. They used Osirix, VNC, Voice Chatter (voice communication software) and Wireshark (packet analyzer) to setup teleconference with only open source software. Using this they setup a four hospital teleconference system using VPN connection. Instead of travelling up and down they now upload anonymized DICOM data to the university hospital and do the consultation using the teleconference method saving hours of travelling time.