The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In clinical applications, images with high resolution are often desired and required which may provide more details for doctors to make precise diagnosis. In this paper, an approach is proposed to increase image resolution of parallel magnetic resonance imaging. Since different receiver coils have different sensitivity profiles, different receiver channel models are constructed to map the original...
This paper analyzes the famous GRAPPA algorithm, which is one of most widely used image reconstruction algorithms for parallel magnetic resonance imaging (pMRI). Inherently the existing GRAPPA type algorithms ignore the physical background of k-space data and treat the image reconstruction problem as a pure data interpolation problem which is solved based on an assumption that the k-space data are...
Accelerated parallel MRI has been widely used in medical research and clinical diagnoses. This paper presents a two dimensional (2D) infinite impulse response (IIR) model of inverse filter to replace the finite impulse response model currently used in GRAPPA class image reconstruction methods. The IIR model better characterizes the correlation of k-space data points and better approximates the inversion...
Magnetic resonance imaging (MRI) is one of the major imaging modalities in medicine and biology with advantages in imaging soft tissues and great flexibility for various applications. However, its relatively long imaging time has obstructed its further development. To accelerate the imaging process, parallel MRI (pMRI) was proposed which applies multiple receive coils operating in parallel to acquire...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.