Portable and platform‐independent MR pulse sequence programs

Purpose To introduce a new sequence description format for vendor‐independent MR sequences that include all calculation logic portably. To introduce a new MRI sequence development approach which utilizes flexibly reusable modules. Methods The proposed sequence description contains a sequence module...

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Bibliographic Details
Published in:Magnetic resonance in medicine Vol. 83; no. 4; pp. 1277 - 1290
Main Authors: Cordes, Cristoffer, Konstandin, Simon, Porter, David, Günther, Matthias
Format: Journal Article
Language:English
Published: United States Wiley Subscription Services, Inc 01.04.2020
Subjects:
Data structures
high performance computing
Image acquisition
Logic
Magnetic Resonance Imaging
Mathematical analysis
modular MR sequence development
Modules
platform‐independent pulse sequence programming
portable
Pulse shape
Rapid prototyping
Redundancy
reproducible
Sequences
vendor‐independent MRI
vendor-independent MRI
high performance computing
portable
reproducible
platform-independent pulse sequence programming
modular MR sequence development
ISSN:0740-3194, 1522-2594, 1522-2594
Online Access:Get full text
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Summary:Purpose To introduce a new sequence description format for vendor‐independent MR sequences that include all calculation logic portably. To introduce a new MRI sequence development approach which utilizes flexibly reusable modules. Methods The proposed sequence description contains a sequence module hierarchy for loop and group logic, which is enhanced by a novel strategy for performing efficient parameter and pulse shape calculation. These calculations are powered by a flow graph structure. By using the flow graph, all calculations are performed with no redundancy and without requiring preprocessing. The generation of this interpretable structure is a separate step that combines MRI techniques while actively considering their context. The driver interface is slim and highly flexible through scripting support. The sequences do not require any vendor‐specific compiling or processing step. A vendor‐independent frontend for sequence configuration can be used. Tests that ensure physical feasibility of the sequence are integrated into the calculation logic. Results The framework was used to define a set of standard sequences. Resulting images were compared to respective images acquired with sequences provided by the device manufacturer. Images were acquired using a standard commercial MRI system. Conclusions The approach produces configurable, vendor‐independent sequences, whose configurability enables rapid prototyping. The transparent data structure simplifies the process of sharing reproducible sequences, modules, and techniques.
Bibliography:Funding information
This work was supported by the FhG Internal Programs under Grant No. Attract 142‐600172.
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ISSN:0740-3194
1522-2594
1522-2594
DOI:10.1002/mrm.28020