Improved gradient waveforms for oscillating gradient spin‐echo (OGSE) diffusion tensor imaging

2020 ◽  
Vol 34 (2) ◽  
Author(s):  
Franciszek Hennel ◽  
Eric Seth Michael ◽  
Klaas P. Pruessmann
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Gradient Waveforms

Comparison of Turbo Spin Echo and Echo Planar Imaging for intravoxel incoherent motion and diffusion tensor imaging of the kidney at 3 Tesla

2017 ◽  
Vol 27 (3) ◽  
pp. 193-201 ◽  
Author(s):  
Fabian Hilbert ◽  
Tobias Wech ◽  
Henning Neubauer ◽  
Simon Veldhoen ◽  
Thorsten Alexander Bley ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Echo Planar Imaging ◽  
3 Tesla ◽  
Turbo Spin Echo ◽  
Planar Imaging ◽  
Turbo Spin ◽  
Echo Planar ◽  
And Diffusion

scholarly journals Second order motion compensated spin-echo diffusion tensor imaging of the human heart

2015 ◽  
Vol 17 (S1) ◽  
Author(s):  
Christian T Stoeck ◽  
Constantin von Deuster ◽  
Martin Genet ◽  
David Atkinson ◽  
Sebastian Kozerke
Keyword(s):  
Diffusion Tensor Imaging ◽  
Human Heart ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Second Order

scholarly journals Comparison of twice refocused spin echo versus stimulated echo diffusion tensor imaging for tracking muscle fibers

2014 ◽  
Vol 41 (3) ◽  
pp. 624-632 ◽  
Author(s):  
Brian Noehren ◽  
Anders Andersen ◽  
Thorsten Feiweier ◽  
Bruce Damon ◽  
Peter Hardy
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Muscle Fibers ◽  
Stimulated Echo

scholarly journals Functional Assessment of Lumbar Nerve Roots Using Coronal-plane Single-shot Turbo Spin-echo Diffusion Tensor Imaging

2020 ◽  
Vol 19 (2) ◽  
pp. 159-165
Author(s):  
Takayuki Sakai ◽  
Yasuchika Aoki ◽  
Atsuya Watanabe ◽  
Masami Yoneyama ◽  
Shigehiro Ochi ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Functional Assessment ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Coronal Plane ◽  
Single Shot ◽  
Turbo Spin Echo ◽  
Nerve Roots ◽  
Turbo Spin

scholarly journals Direct comparison of in-vivo and post-mortem spin-echo based diffusion tensor imaging in the porcine heart

2015 ◽  
Vol 17 (S1) ◽  
Author(s):  
Christian T Stoeck ◽  
Constantin von Deuster ◽  
Nikola Cesarovic ◽  
Martin Genet ◽  
Maximilian Y Emmert ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Post Mortem ◽  
Porcine Heart

scholarly journals Diffusion Tensor Imaging of Skeletal Muscle Contraction Using Oscillating Gradient Spin Echo

2021 ◽  
Vol 12 ◽  
Author(s):  
Valentina Mazzoli ◽  
Kevin Moulin ◽  
Feliks Kogan ◽  
Brian A. Hargreaves ◽  
Garry E. Gold
Keyword(s):  
Skeletal Muscle ◽  
Diffusion Tensor Imaging ◽  
Muscle Contraction ◽  
Tibialis Anterior ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Neuromuscular Diseases ◽  
Non Invasive ◽  
Skeletal Muscle Contraction ◽  
Encoding Strategy

Diffusion tensor imaging (DTI) measures water diffusion in skeletal muscle tissue and allows for muscle assessment in a broad range of neuromuscular diseases. However, current DTI measurements, typically performed using pulsed gradient spin echo (PGSE) diffusion encoding, are limited to the assessment of non-contracted musculature, therefore providing limited insight into muscle contraction mechanisms and contraction abnormalities. In this study, we propose the use of an oscillating gradient spin echo (OGSE) diffusion encoding strategy for DTI measurements to mitigate the effect of signal voids in contracted muscle and to obtain reliable diffusivity values. Two OGSE sequences with encoding frequencies of 25 and 50 Hz were tested in the lower leg of five healthy volunteers with relaxed musculature and during active dorsiflexion and plantarflexion, and compared with a conventional PGSE approach. A significant reduction of areas of signal voids using OGSE compared with PGSE was observed in the tibialis anterior for the scans obtained in active dorsiflexion and in the soleus during active plantarflexion. The use of PGSE sequences led to unrealistically elevated axial diffusivity values in the tibialis anterior during dorsiflexion and in the soleus during plantarflexion, while the corresponding values obtained using the OGSE sequences were significantly reduced. Similar findings were seen for radial diffusivity, with significantly higher diffusivity measured in plantarflexion in the soleus muscle using the PGSE sequence. Our preliminary results indicate that DTI with OGSE diffusion encoding is feasible in human musculature and allows to quantitatively assess diffusion properties in actively contracting skeletal muscle. OGSE holds great potential to assess microstructural changes occurring in the skeletal muscle during contraction, and for non-invasive assessment of contraction abnormalities in patients with muscle diseases.

scholarly journals Visualization of kidney fibrosis in diabetic nephropathy by long diffusion tensor imaging MRI with spin-echo sequence

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Jun-Ya Kaimori ◽  
Yoshitaka Isaka ◽  
Masaki Hatanaka ◽  
Satoko Yamamoto ◽  
Naotsugu Ichimaru ◽  
...  
Keyword(s):  
Diabetic Nephropathy ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Kidney Fibrosis ◽  
Spin Echo Sequence

scholarly journals A tractography comparison between turboprop and spin-echo echo-planar diffusion tensor imaging

NeuroImage ◽  
2008 ◽  
Vol 42 (4) ◽  
pp. 1451-1462 ◽  
Author(s):  
Minzhi Gui ◽  
Huiling Peng ◽  
John D. Carew ◽  
Maciej S. Lesniak ◽  
Konstantinos Arfanakis
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Spin Echo ◽  
Echo Planar
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