Results 11 to 20 of about 26,868 (222)

7T‐guided super‐resolution of 3T MRI [PDF]

Medical Physics, 2017
PurposeHigh‐resolution MR images can depict rich details of brain anatomical structures and show subtle changes in longitudinal data. 7T MRI scanners can acquire MR images with higher resolution and better tissue contrast than the routine 3T MRI scanners.
Khosro, Bahrami, Feng, Shi, Islem, Rekik, Yaozong, Gao, Dinggang, Shen   +4 more
openaire   +4 more sources

Application of 7T MRS to High-Grade Gliomas

American Journal of Neuroradiology, 2022
MRS, including single-voxel spectroscopy and MR spectroscopic imaging, captures metabolites in high-grade gliomas. Emerging evidence indicates that 7T MRS may be more sensitive to aberrant metabolic activity than lower-field strength MRS. However, the literature on the use of 7T MRS to visualize high-grade gliomas has not been summarized.
L. McCarthy, G. Verma, G. Hangel, A. Neal, B.A. Moffat, J.P. Stockmann, O.C. Andronesi, P. Balchandani, C.G. Hadjipanayis   +8 more
openaire   +4 more sources

Improving MRI Resolution: A Cycle Consistent Generative Adversarial Network-Based Approach for 3T to 7T Translation

IEEE Access
Brain magnetic resonance imaging (MRI) offers intricate soft tissue contrasts that are essential for diagnosing diseases and conducting neuroscience research.
Zakaria Shams Siam, Rubyat Tasnuva Hasan, Moajjem Hossain Chowdhury, Md. Shaheenur Islam Sumon, Mamun Bin Ibne Reaz, Sawal Hamid Bin Md Ali, Adam Mushtak, Israa Al-Hashimi, Sohaib Bassam Zoghoul, Muhammad E. H. Chowdhury   +9 more
doaj   +2 more sources

7T MRI Synthesization from 3T Acquisitions

Supervised deep learning techniques can be used to generate synthetic 7T MRIs from 3T MRI inputs. This image enhancement process leverages the advantages of ultra-high-field MRI to improve the signal-to-noise and contrast-to-noise ratios of 3T acquisitions. In this paper, we introduce multiple novel 7T synthesization algorithms based on custom-designed
Qiming Cui, Duygu Tosun, Pratik Mukherjee, Reza Abbasi-Asl   +3 more
openaire   +3 more sources

7T MRI in the evaluation of ischemic stroke: a systematic review

Frontiers in Neuroscience
Introduction7T magnetic resonance imaging (MRI) has advanced in managing neurological and neurovascular diseases. With improved spatial resolution and signal-to-noise ratio, 7T MRI enhances spatial and functional imaging, benefiting ischemic stroke ...
Felix Tobias Kurz, Felix Tobias Kurz, Daniela Dumitriu La Grange, Daniela Dumitriu La Grange, Daniele Botta, Maria Isabel Vargas, Francois Lazeyras, Myriam Edjlali-Goujon, Jean-Pierre Pruvo, Isabel Wanke, Isabel Wanke, Isabel Wanke, Karl-Olof Lövblad, Karl-Olof Lövblad   +13 more
doaj   +2 more sources

Volumetric 23 Na Single and Triple-Quantum Imaging at 7T: 3D-CRISTINA

, 2021
International audiencePurposeTo measure multi-quantum coherence (MQC) 23Na signals for noninvasive cell physiological information in the whole-brain, the 2D-CRISTINA method was extended to 3D. This experimental study investigated the use and results of a
Hoesl, Michaela A.U., Schad, Lothar, R, Rapacchi, Stanislas   +2 more
core   +1 more source

Early brain connectivity alterations and cognitive impairment in a rat model of Alzheimer’s disease

Alzheimer’s Research & Therapy, 2018
Background Animal models of Alzheimer’s disease (AD) are essential to understanding the disease progression and to development of early biomarkers.
Emma Muñoz-Moreno, Raúl Tudela, Xavier López-Gil, Guadalupe Soria   +3 more
doaj   +1 more source

Utility of 7 tesla MRI brain in 16 “MRI Negative” epilepsy patients and their surgical outcomes

Epilepsy & Behavior Reports, 2021
The objective is to quantitatively assess surgical outcomes in epilepsy patients who underwent scanning at 7T MRI whose lesions were undetectable at conventional field strengths (1.5T/3T).16 patients who underwent an initial 1.5T/3T scan that was marked ...
Himanshu K. Sharma, Rebecca Feldman, Bradley Delman, John Rutland, Lara V. Marcuse, Madeline C. Fields, Saadi Ghatan, Fedor Panov, Anuradha Singh, Priti Balchandani   +9 more
doaj   +1 more source

Spinal cord MRI at 7T

NeuroImage, 2018
Magnetic resonance imaging (MRI) of the human spinal cord at 7T has been demonstrated by a handful of research sites worldwide, and the spinal cord remains one of the areas in which higher fields and resolution could have high impact. The small diameter of the cord (∼1 cm) necessitates high spatial resolution to minimize partial volume effects between ...
Robert L. Barry, S. Johanna Vannesjo, Samantha By, John C. Gore, Seth A. Smith   +4 more
openaire   +4 more sources

Giant Intracranial Aneurysms at 7T MRI [PDF]

American Journal of Neuroradiology, 2015
Giant intracranial aneurysms are rare vascular pathologies associated with high morbidity and mortality. The purpose of this in vivo study was to assess giant intracranial aneurysms and their wall microstructure by 7T MR imaging, previously only visualized in histopathologic examinations.
T. Matsushige, B. Chen, A. Ringelstein, L. Umutlu, M. Forsting, H.H. Quick, U. Sure, K.H. Wrede   +7 more
openaire   +2 more sources