Inherent Geometry Correction for Diffusion EPI Using the Reference Echoes as Navigators
Joint Authors
van den Brink, Johan S.
Koonen, Jos J.
Source
Concepts in Magnetic Resonance :Part B : Magnetic Resonance Engineering.
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Diffusion-weighted EPI has become an indispensable tool in body MRI.
Geometric distortions due to field inhomogeneities are more prominent at large field–of–view and require correction for comparison with T2W TSE.
Several known correction methods require acquisition of additional lengthy scans, which are difficult to apply in body imaging.
We implement and evaluate a geometry correction method based on the already available non phase-encoded EPI reference data used for Nyquist ghost removal.
The method is shown to provide accurate and robust global geometry correction in the absence of strong, local phase offsets.
It does not require additional time for calibrations and is directly compatible with parallel imaging methods.
The resulting images can serve as improved starting point for additional geometry correction methods relying on feature extraction and registration.
American Psychological Association (APA)
van den Brink, Johan S.& Koonen, Jos J.. 2019. Inherent Geometry Correction for Diffusion EPI Using the Reference Echoes as Navigators. Concepts in Magnetic Resonance :Part B : Magnetic Resonance Engineering.،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1130814
Modern Language Association (MLA)
van den Brink, Johan S.& Koonen, Jos J.. Inherent Geometry Correction for Diffusion EPI Using the Reference Echoes as Navigators. Concepts in Magnetic Resonance :Part B : Magnetic Resonance Engineering. No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1130814
American Medical Association (AMA)
van den Brink, Johan S.& Koonen, Jos J.. Inherent Geometry Correction for Diffusion EPI Using the Reference Echoes as Navigators. Concepts in Magnetic Resonance :Part B : Magnetic Resonance Engineering.. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1130814
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1130814