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Magnetic resonance imaging apparatus and method for adjusting excitation region
专利权人:
Tomohiro Goto
发明人:
Tomohiro Goto,Takashi Nishihara,Hiroyuki Itagaki
申请号:
US13496921
公开号:
US09594135B2
申请日:
2010.09.22
申请国别(地区):
US
年份:
2017
代理人:
摘要:
In imaging using 2-dimensional selective excitation pulses, regardless of applications thereof, a technique for obtaining a high quality image is provided.In the technique, a 2-dimensional selective excitation sequence is carried out while changing a coefficient for determining the cylinder diameter of a region excited by the 2-dimensional selective excitation sequence and a time difference for determining an offset position.The obtained excitation region and a desired region are compared with each other, and the coefficient and time difference with which the obtained excitation region and the desired region match each other are determined to be the optimum ones.The determination processing may be performed as an initial adjustment, may be performed according to need in each imaging, or may be performed on a per-application basis.
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