Investigating the effect of oblique image acquisition on the accuracy of QSM and a robust tilt correction method

Autor:	Oliver C. Kiersnowski, Anita Karsa, Stephen J. Wastling, John S. Thornton, Karin Shmueli
Rok vydání:	2022
Předmět:	Radiology Nuclear Medicine and imaging
Zdroj:	Magnetic resonance in medicineREFERENCES.
ISSN:	1522-2594
Popis:	Quantitative susceptibility mapping (QSM) is used increasingly for clinical research where oblique image acquisition is commonplace, but its effects on QSM accuracy are not well understood.The QSM processing pipeline involves defining the unit magnetic dipole kernel, which requires knowledge of the direction of the main magnetic fieldRotation of wrapped phase images gave severe artifacts. Background field removal with projection onto dipole fields gave the most accurate susceptibilities when the field map was first rotated into alignment withFor accurate QSM, oblique acquisition must be taken into account. Rotation of images into alignment with
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85dafca0ca12e0a1ccff3d36bf3a7f94 https://pubmed.ncbi.nlm.nih.gov/36480002 Zobrazit plný text záznamu Plný text