Publication date: May 2017
Source:Magnetic Resonance Imaging, Volume 38
Author(s): Jinghua Wang, Lili He, Hairong Zheng, Zhong-Lin Lu
The three-dimension Fast Low Angle SHot Magnetic Resonance Imaging (3D FLASH) sequence has been widely adopted in medical diagnostic imaging because of its availability, simplicity, and high spatial resolution. To improve the quality of structural brain images acquired with the 3D FLASH sequence, we developed a parameter optimization scheme and image inhomogeneity correction methods. The optimal imaging parameters were determined by maximizing gray-matter and white-matter CNR efficiency. Compared to protocols based on published parameters, applying the proposed optimal imaging parameters increased CNR efficiency by >10%. Image inhomogeneity, including signal and CNR inhomogeneity, was corrected by the choice of an optimal flip angle, estimated transmit function, and estimated receive sensitivity. As a result, our optimization and image inhomogeneity correction greatly improved the quality of images acquired with the 3D FLASH sequence.
http://ift.tt/2kw3r46
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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- Health impacts of Facebook usage and mobile textin...
- Pharmacology: Discontinuation of bisphosphonates
- Focusing on the keystones of modern dentistry
- Oral surgery: Mutilation following MDMA
- The perceptions of dental practitioners of their r...
- Oral medicine: A waste of paper
- Protecting your toothbrush from contamination
- Social media: Professionalism
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- Law and ethics: Out of context
- Laypeople's perceptions of frontal smile esthetics...
- Dental education: Unimaginable opportunities
- Awareness of medication related osteonecrosis of t...
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- Digitally take control of your surgery
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- Accuracy, Yield and Clinical Impact of a Low-Cost ...
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