Understanding the Morphological Mismatch between Magnetic Susceptibility Source and T2* Image
نویسندگان
چکیده
منابع مشابه
Understanding the Morphological Mismatch Between Magnetic Susceptibility Source and T2* Image
BACKGROUND AND PURPOSE Recent research has shown that a T2* image (either magnitude or phase) is not identical to the internal spatial distribution of a magnetic susceptibility (χ) source. In this paper, we examine the reasons behind these differences by looking into the insights of T2*-weighted magnetic resonance imaging (T2*MRI) and provide numerical characterizations of the source/image mism...
متن کاملEffect of Object Orientation Angle on T2* Image and Reconstructed Magnetic Susceptibility: Numerical Simulations
The magnetic field resulting from material magnetization in magnetic resonance imaging (MRI) has an object orientation effect, which produces an orientation dependence for acquired T2* images. On one hand, the orientation effect can be exploited for object anisotropy investigation (via multi-angle imaging); on the other hand, it is desirable to remove the orientation dependence using magnetic s...
متن کاملUnderstanding the Mismatch Between Coaches' and Players' Perceptions of Exertion.
A mismatch between the training exertion intended by a coach and the exertion perceived by players is well established in sports. However, it is unknown whether coaches can accurately observe exertion of individual players during training. Furthermore, the discrepancy in coaches' and players' perceptions has not been explained. PURPOSE To determine the relation between intended and observed t...
متن کاملAcute Cardioembolic and Thrombotic Middle Cerebral Artery Occlusions Have Different Morphological Susceptibility Signs on T2∗-Weighted Magnetic Resonance Images
Presence of susceptibility sign on middle cerebral artery (MCA) in T2 (∗) -weighted magnetic resonance (MR) images has been reported to detect acute MCA thromboembolic occlusion. However, the pathophysiologic course of thrombotic MCA occlusion differs from embolic occlusion, which might induce different imaging characters. Our study found that the occurrence rate of the MCA susceptibility sign ...
متن کاملThe relationship between morphological lesion, magnetic source imaging, and intracranial stereo-electroencephalography in focal cortical dysplasia
Magnetoencephalography (MEG) is a useful non-invasive technique for presurgical evaluation of focal cortical dysplasia patients. We aimed at clarifying the precise spatial relationship between the spiking volume determined with MEG, the seizure onset zone and the lesional volume in patients with focal cortical dysplasia. We studied the spatial relationships between the MEG spiking volume determ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance Insights
سال: 2013
ISSN: 1178-623X,1178-623X
DOI: 10.4137/mri.s11920