Stephen Jacob Granite MS, MBA, Abstract Co-Author: Nothing to Disclose

Dinanath Sulakhe MS, Presenter: Nothing to Disclose

Ravi Madduri, Abstract Co-Author: Nothing to Disclose

Ian T. Foster PhD, Abstract Co-Author: Nothing to Disclose

Rai Winslow PhD, Abstract Co-Author: Nothing to Disclose

RSNA’s CTP suite already improves data transfer rates for imaging data. Adding Globus to CTP improves the transfer rate even more, allowing more time for physicians to analyze data and improve patient care.

The clinical imaging trials involving images coded according to Digital Imaging and Communications in Medicine (DICOM) standard produce large volumes of data and require sophisticated tools to ensure de-identification, transfer, management and distribution. While RSNA’s Clinical Trial Processor (CTP) software suite addresses many of the challenges in handling the imaging data, we present here the development and integration of Globus Online (Globus)-based ExportService within CTP, for a secure, high-throughput data transfer between CTP nodes.

CTP is a tool developed by RSNA that processes and handles data objects in clinical trials in the form of pipelines. The imaging data goes through various stages (i.e., Import Service, Processors, Storage Services and Export Services). In multi-center clinical image collection projects, CTP’s Export Services transfers the DICOM images from the facility producing the images, and CTP’s Import Services receives the data at another center. Currently, CTP supports various export services, implemented using HTTP, DICOM-SCP and FTP protocols. We implemented a GlobusExportService (Fig. 1) within CTP that initiates data transfers of DICOM images between two globus online endpoints. Globus leverages GridFTP for high performance transfer of single files and directories. It can manage security credentials; select transfer protocol parameters for high performance; monitor and retry transfers when there are faults, and allow users to monitor status.

CTP’s HTTP based export service only allows one file transfer at a time (e.g., 500 MB MRI transfer takes 3 hours). The GlobusExportService extends the existing CTP functionalities, collecting all the files from CTP and initiating a bulk transfer using Globus REST API (e.g., same 500 MB transfer takes 2 hours). Thus we preliminarily estimate that the GlobusExportService provides a 33% performance improvement over the existing transfer capabilities of CTP. More tuning may increase performance.

Granite, S, Sulakhe, D, Madduri, R, Foster, I, Winslow, R, Integration of Globus Online with RSNA Clinical Trial Processor (CTP) for High-throughput Image Data Transfer.  Radiological Society of North America 2013 Scientific Assembly and Annual Meeting, December 1 - December 6, 2013 ,Chicago IL. http://archive.rsna.org/2013/13028583.html