scholarly journals High Spatial Resolution and Temporally Resolved T2* Mapping of Normal Human Myocardium at 7.0 Tesla: An Ultrahigh Field Magnetic Resonance Feasibility Study

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e52324 ◽  
Author(s):  
Fabian Hezel ◽  
Christof Thalhammer ◽  
Sonia Waiczies ◽  
Jeanette Schulz-Menger ◽  
Thoralf Niendorf
Keyword(s):  
Magnetic Resonance ◽  
Feasibility Study ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
T2 Mapping ◽  
Human Myocardium ◽  
Ultrahigh Field ◽  
Normal Human

Interphalangeal Joint Cartilage: High-Spatial-Resolution in Vivo MR T2 Mapping—A Feasibility Study

Radiology ◽  
2004 ◽  
Vol 233 (1) ◽  
pp. 292-296 ◽  
Author(s):  
Jelena Lazovic-Stojkovic ◽  
Timothy J. Mosher ◽  
Harvey E. Smith ◽  
Qing X. Yang ◽  
Bernard J. Dardzinski ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
T2 Mapping ◽  
Interphalangeal Joint ◽  
Joint Cartilage

Biochemical analysis of the articular disc of the temporomandibular joint with magnetic resonance T2 mapping: a feasibility study

2013 ◽  
Vol 18 (7) ◽  
pp. 1865-1871 ◽  
Author(s):  
Martina Schmid-Schwap ◽  
Margit Bristela ◽  
Elisabeth Pittschieler ◽  
Astrid Skolka ◽  
Pavol Szomolanyi ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Temporomandibular Joint ◽  
Feasibility Study ◽  
Biochemical Analysis ◽  
T2 Mapping ◽  
Articular Disc

scholarly journals Neuroimaging brainstem circuitry supporting cardiovagal response to pain: a combined heart rate variability/ultrahigh-field (7 T) functional magnetic resonance imaging study

2016 ◽  
Vol 374 (2067) ◽  
pp. 20150189 ◽  
Author(s):  
Roberta Sclocco ◽  
Florian Beissner ◽  
Gaelle Desbordes ◽  
Jonathan R. Polimeni ◽  
Lawrence L. Wald ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Magnetic Resonance ◽  
Spatial Resolution ◽  
Pain Processing ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Ultrahigh Field ◽  
Brainstem Nuclei

Central autonomic control nuclei in the brainstem have been difficult to evaluate non-invasively in humans. We applied ultrahigh-field (7 T) functional magnetic resonance imaging (fMRI), and the improved spatial resolution it affords (1.2 mm isotropic), to evaluate putative brainstem nuclei that control and/or sense pain-evoked cardiovagal modulation (high-frequency heart rate variability (HF-HRV) instantaneously estimated through a point-process approach). The time-variant HF-HRV signal was used to guide the general linear model analysis of neuroimaging data. Sustained (6 min) pain stimulation reduced cardiovagal modulation, with the most prominent reduction evident in the first 2 min. Brainstem nuclei associated with pain-evoked HF-HRV reduction were previously implicated in both autonomic regulation and pain processing. Specifically, clusters consistent with the rostral ventromedial medulla, ventral nucleus reticularis (Rt)/nucleus ambiguus (NAmb) and pontine nuclei (Pn) were found when contrasting sustained pain versus rest. Analysis of the initial 2-min period identified Rt/NAmb and Pn, in addition to clusters consistent with the dorsal motor nucleus of the vagus/nucleus of the solitary tract and locus coeruleus. Combining high spatial resolution fMRI and high temporal resolution HF-HRV allowed for a non-invasive characterization of brainstem nuclei, suggesting that nociceptive afference induces pain-processing brainstem nuclei to function in concert with known premotor autonomic nuclei in order to affect the cardiovagal response to pain.

scholarly journals Myocardial T2* Mapping with Ultrahigh Field Magnetic Resonance: Physics and Frontier Applications

2017 ◽  
Vol 5 ◽  
Author(s):  
Till Huelnhagen ◽  
Katharina Paul ◽  
Min-Chi Ku ◽  
Teresa Serradas Duarte ◽  
Thoralf Niendorf
Keyword(s):  
Magnetic Resonance ◽  
T2 Mapping ◽  
Ultrahigh Field
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