MR Fingerprinting for Rapid Quantitative Abdominal Imaging
Yong Chen,Yun Jiang,Shivani Pahwa,Dan Ma,Lan Lu,Michael Twieg,Katherine L. Wright,Nicole Seiberlich,Mark A. Griswold,Vikas Gulani +9 more
TLDR
A rapid technique for quantitative abdominal imaging was developed that allows simultaneous quantification of multiple tissue properties within one 19-second breath hold, with measurements comparable to those in published literature.Abstract:
A rapid technique for quantitative abdominal imaging was developed by using a fast imaging with steady-state free precession MR fingerprinting acquisition in combination with the Bloch-Siegert B1 mapping method, allowing simultaneous quantification of T1 and T2 in the abdomen within a 19-second breath hold.read more
Citations
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Quantitative imaging biomarkers alliance (QIBA) recommendations for improved precision of DWI and DCE‐MRI derived biomarkers in multicenter oncology trials
Amita Shukla-Dave,Nancy A. Obuchowski,Thomas L. Chenevert,Sachin Jambawalikar,Lawrence H. Schwartz,Dariya I. Malyarenko,Wei Huang,Susan M. Noworolski,Robert J. Young,Mark S. Shiroishi,Harrison Kim,Catherine Coolens,Hendrik Laue,Caroline Chung,Mark A. Rosen,Michael A. Boss,Edward F. Jackson +16 more
TL;DR: This review focuses on the need for QIBs in oncology applications and emphasizes the importance of the assessment of their reproducibility and repeatability.
Journal ArticleDOI
What are normal relaxation times of tissues at 3 T
Jorge Zavala Bojorquez,Stéphanie Bricq,Clement Acquitter,François Brunotte,Paul Walker,Alain Lalande +5 more
TL;DR: A comprehensive review of the reported relaxation times in the literature in vivo at 3T for a large span of tissues is presented, and a detailed analysis of the different methods and sequences used to calculate the relaxation times is given.
Journal ArticleDOI
Multiparametric imaging with heterogeneous radiofrequency fields.
Martijn A. Cloos,Florian Knoll,Tiejun Zhao,Tiejun Zhao,Kai Tobias Block,Mary Bruno,Graham C. Wiggins,Daniel K. Sodickson +7 more
TL;DR: The results show that it is possible to perform quantitative multiparametric imaging with heterogeneous RF fields, and to liberate MRI from the traditional struggle for control over the RF field uniformity.
Journal ArticleDOI
Improved magnetic resonance fingerprinting reconstruction with low-rank and subspace modeling.
Bo Zhao,Kawin Setsompop,Kawin Setsompop,Elfar Adalsteinsson,Borjan Gagoski,Borjan Gagoski,Huihui Ye,Dan Ma,Yun Jiang,P. Ellen Grant,P. Ellen Grant,Mark A. Griswold,Mark A. Griswold,Lawrence L. Wald,Lawrence L. Wald +14 more
TL;DR: This article introduces a constrained imaging method based on low‐rank and subspace modeling to improve the accuracy and speed of MR fingerprinting (MRF).
Journal ArticleDOI
MR Fingerprinting of Adult Brain Tumors: Initial Experience
Chaitra Badve,A Yu,Sara Dastmalchian,Matthew Rogers,Dan Ma,Yun Jiang,Seunghee Margevicius,Shivani Pahwa,Z. Lu,Mark D. Schluchter,Jeffrey L. Sunshine,Mark A. Griswold,Andrew E Sloan,Vikas Gulani +13 more
TL;DR: The ability of MR fingerprinting–derived T1 and T2 relaxometry to differentiate the 3 common types of intra-axial brain tumors was evaluated and it was revealed that the mean T2 of solid tumor offered the best separation between glioblastomas and metastases with an area under the curve of 0.86.
References
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Journal ArticleDOI
Magnetic resonance fingerprinting
Dan Ma,Vikas Gulani,Vikas Gulani,Nicole Seiberlich,Kecheng Liu,Jeffrey L. Sunshine,Jeffrey L. Duerk,Jeffrey L. Duerk,Mark A. Griswold,Mark A. Griswold +9 more
TL;DR: An approach to data acquisition, post-processing and visualization that permits the simultaneous non-invasive quantification of multiple important properties of a material or tissue is introduced—which is termed ‘magnetic resonance fingerprinting’ (MRF).
Journal ArticleDOI
T1, T2 relaxation and magnetization transfer in tissue at 3T
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TL;DR: The results provide a useful reference for optimization of pulse sequence parameters for MRI at 3 T and the phenomenological MT parameter, magnetization transfer ratio, MTR, was lower by approximately 2 to 10%.
Journal ArticleDOI
MR imaging relaxation times of abdominal and pelvic tissues measured in vivo at 3.0 T: preliminary results.
TL;DR: T1 relaxation times are generally higher and T2 relaxation time are generally lower at 3.0 T than at 1.5 T, but the magnitude of change varies greatly in different tissues, including liver, kidney, spleen, and muscle tissue.
Journal ArticleDOI
B1 mapping by Bloch-Siegert shift.
TL;DR: In vivo Bloch‐Siegert B1 mapping with 25 sec/slice is demonstrated to be quantitatively comparable to a 21‐min double‐angle map, enabling robust, high‐resolution B 1+ mapping in a clinically acceptable time frame.
Journal ArticleDOI
Simple Correction Method for k-Space Trajectory Deviations in MRI
TL;DR: A method is presented, using the MR signal to accurately measure the k-space trajectory of the imaging sequence, that allows for correction of gradient hardware imperfections and eddy-current effects in MRI.