Title :
A modified view ordering for artifact reduction in MRI
Author :
Maclaren, J.R. ; Bones, P.J. ; Millane, R.P. ; Watts, R.
Author_Institution :
Univ. of Canterbury, Christchurch
Abstract :
Fast spin echo (FSE) is a means of rapidly acquiring k-space data in magnetic resonance imaging (MRI). Unfortunately, images obtained using FSE often contain artifacts. These are caused primarily by patient motion and transversal magnetisation decay, the latter being characterised by the time constant Ti. This paper presents a study of the effect of data acquisition order on the severity of these effects.
Keywords :
biomagnetism; biomedical MRI; magnetisation; fast spin echo; k-space data; magnetic resonance imaging; transversal magnetisation decay; Bones; Data acquisition; Frequency; Image analysis; Magnetic resonance; Magnetic resonance imaging; Magnetization; Motion analysis; Physics computing; Pulse generation; Artifacts; Brain; Brain Mapping; Contrast Media; Equipment Design; Head; Humans; Image Enhancement; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Models, Statistical; Motion; Phantoms, Imaging; Time Factors;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352724
