Frequency drift in MR spectroscopy at 3T

Steve CN Hui; Mark Mikkelsen; Helge J Zollner; Vishwadeep Ahluwalia; Sarael Alcauter; Laima Baltusis; Deborah A Barany; Laura R Barlow; Robert Becker; Jeffrey Berman; Adam Berrington; Pallab K Bhattacharyya; Jakob Udby Blicher; Wolfgang Bogner; Mark S Brown; Vince D Calhoun; Ryan Castillo; Kim M Cecil; Yeo Bi Choi; Winnie CW Chu; William T Clarke; Alexander R Craven; Koen Cuypers; Michael Dacko; Camilo de la Fuente-Sandoval; Patricia Desmond; Aleksandra Domagalik; Julien Dumont; Niall W Duncan; Ulrike Dydak; Katherine Dyke; David A Edmondson; Gabriele Ende; Lars Ersland; C John Evans; Alan SR Fermin; Antonio Ferretti; Ariane Fillmer; Tao Gong; Ian Greenhouse; James T Grist; Meng Gu; Ashley D Harris; Katarzyna Hatz; Stefanie Heba; Eva Heckova; John P Hegarty; Kirstin-Friederike Heise; Shiori Honda; Aaron Jacobson; Jacobus FA Jansen; Christopher W Jenkins; Stephen J Johnston; Christoph Juchem; Alayar Kangarlu; Adam B Kerr; Karl Landheer; Thomas Lange; Phil Lee; Swati Rane Levendovszky; Catherine Limperopoulos; Feng Liu; William Lloyd; David J Lythgoe; Maro G Machizawa; Erin L MacMillan; Richard J Maddock; Andrei Manzhurtsev; Maria L Martinez-Gudino; Jack J Miller; Heline Mirzakhanian; Marta Moreno-Ortega; Paul G Mullins; Shinichiro Nakajima; Jamie Near; Ralph Noeske; Wibeke Nordhoy; Georg Oeltzschner; Raul Osorio-Duran; Maria CG Otaduy; Erick H Pasaye; Ronald Peeters; Scott J Peltier; Ulrich Pilatus; Nenad Polomac; Eric C Porges; Subechhya Pradhan; James Joseph Prisciandaro; Nicolaas A Puts; Caroline D Rae; Francisco Reyes-Madrigal; Timothy PL Roberts; Caroline E Robertson; Jens T Rosenberg; Diana-Georgiana Rotaru; Ruth L O'Gorman Tuura; Muhammad G Saleh; Kristian Sandberg; Ryan Sangill; Keith Schembri; Anouk Schrantee; Natalia A Semenova; Debra Singel; Rouslan Sitnikov; Jolinda Smith; Yulu Song; Craig Stark; Diederick Stoffers; Stephan P Swinnen; Rongwen Tain; Costin Tanase; Sofie Tapper; Martin Tegenthoff; Thomas Thiel; Marc Thioux; Peter Truong; Pim van Dijk; Nolan Vella; Rishma Vidyasagar; Andrej Vovk; Guangbin Wang; Lars T Westlye; Timothy K Wilbur; William R Willoughby; Martin Wilson; Hans-Jorg Wittsack; Adam J Woods; Yen-Chien Wu; Junqian Xu; Maria Yanez Lopez; David KW Yeung; Qun Zhao; Xiaopeng Zhou; Gasper Zupan; Richard AE Edden

Journal article

Frequency drift in MR spectroscopy at 3T

Steve CN Hui, Mark Mikkelsen, Helge J Zollner, Vishwadeep Ahluwalia, Sarael Alcauter, Laima Baltusis, Deborah A Barany, Laura R Barlow, Robert Becker, Jeffrey Berman, Adam Berrington, Pallab K Bhattacharyya, Jakob Udby Blicher, Wolfgang Bogner, Mark S Brown, Vince D Calhoun, Ryan Castillo, Kim M Cecil, Yeo Bi Choi, Winnie CW Chu Show all

NEUROIMAGE | ACADEMIC PRESS INC ELSEVIER SCIENCE | Published : 2021

DOI: 10.1016/j.neuroimage.2021.118430

Abstract

PURPOSE: Heating of gradient coils and passive shim components is a common cause of instability in the B0 field, especially when gradient intensive sequences are used. The aim of the study was to set a benchmark for typical drift encountered during MR spectroscopy (MRS) to assess the need for real-time field-frequency locking on MRI scanners by comparing field drift data from a large number of sites. METHOD: A standardized protocol was developed for 80 participating sites using 99 3T MR scanners from 3 major vendors. Phantom water signals were acquired before and after an EPI sequence. The protocol consisted of: minimal preparatory imaging; a short pre-fMRI PRESS; a ten-minute fMRI acquisiti..

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