Stephen Sawiak
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Explore the profile of Stephen Sawiak including associated specialties, affiliations and a list of published articles.
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14
Citations
339
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Recent Articles
1.
Bozymski B, Shen X, Ozen A, Chiew M, Thomas M, Clarke W, et al.
Sci Rep
. 2025 Feb;
15(1):6465.
PMID: 39987281
Phosphorus-31 magnetic resonance spectroscopic imaging (P-MRSI) provides valuable non-invasivein vivoinformation on tissue metabolism but is burdened by poor sensitivity and prolonged scan duration. Ultra-short echo time (UTE) acquisitions minimize signal...
2.
Villarreal C, Shen X, Alhulail A, Buffo N, Zhou X, Pogue E, et al.
Skeletal Radiol
. 2024 Aug;
54(3):601-610.
PMID: 39153083
Objective: In this work, we evaluate the sodium magnetic resonance imaging (MRI) capabilities of a three-dimensional (3D) dual-echo ultrashort echo time (UTE) sequence with a novel rosette petal trajectory (PETALUTE),...
3.
Villarreal C, Shen X, Alhulail A, Buffo N, Zhou X, Ozen A, et al.
medRxiv
. 2024 May;
PMID: 38746343
In this work, we demonstrate the sodium magnetic resonance imaging (MRI) capabilities of a three-dimensional (3D) dual-echo ultrashort echo time (UTE) sequence with a novel rosette petal trajectory (PETALUTE), in...
4.
Bozymski B, Emir U, Dydak U, Shen X, Thomas M, Ozen A, et al.
Res Sq
. 2024 Apr;
PMID: 38659806
Phosphorus-31 magnetic resonance spectroscopic imaging (P-MRSI) provides valuable non-invasive information on tissue metabolism but is burdened by poor sensitivity and prolonged scan duration. Ultra-short echo time (UTE) acquisitions minimize signal...
5.
Zuhlsdorff K, Lopez-Cruz L, Dutcher E, Jones J, Pama C, Sawiak S, et al.
Neurobiol Stress
. 2022 Dec;
22:100507.
PMID: 36505960
Major depressive disorder (MDD) is a stress-related condition hypothesized to involve aberrant reinforcement learning (RL) with positive and negative stimuli. The present study investigated whether repeated early maternal separation (REMS)...
6.
Ramakrishnan N, Betts H, Milicevic Sephton S, Zhou X, Williamson D, Sawiak S, et al.
Nucl Med Biol
. 2022 Oct;
114-115:71-77.
PMID: 36242984
Purpose: From a series of fluorinated analogues of puromycin, we recently identified [F]fluoroethylpuromycin (FEPURO) as a potential candidate for imaging the rate of protein synthesis in vivo. Herein, we describe...
7.
Shen X, Ozen A, Sunjar A, Ilbey S, Sawiak S, Shi R, et al.
Magn Reson Med
. 2022 Sep;
89(2):508-521.
PMID: 36161728
Purpose: This study aimed to develop a new 3D dual-echo rosette k-space trajectory, specifically designed for UTE MRI applications. The imaging of the ultra-short transverse relaxation time (uT ) of...
8.
Woodington B, Coles L, Rochford A, Freeman P, Sawiak S, ONeill S, et al.
Adv Healthc Mater
. 2022 Jul;
11(18):e2200739.
PMID: 35871265
Implantable electronic medical devices are used in functional mapping of the brain before surgery and to deliver neuromodulation for the treatment of neurological and neuropsychiatric disorders. Their electrode arrays are...
9.
Lin Z, Kim E, Ahmed M, Han G, Simmons C, Redhead Y, et al.
Brain Commun
. 2021 Jun;
3(2):fcab114.
PMID: 34136812
Amyotrophic lateral sclerosis and frontotemporal dementia are overlapping diseases in which MRI reveals brain structural changes in advance of symptom onset. Recapitulating these changes in preclinical models would help to...
10.
Wang X, Li X, Cho J, Russ B, Rajamani N, Omelchenko A, et al.
Neuroimage
. 2021 Mar;
235:118001.
PMID: 33789137
Brain extraction (a.k.a. skull stripping) is a fundamental step in the neuroimaging pipeline as it can affect the accuracy of downstream preprocess such as image registration, tissue classification, etc. Most...