A brain tumor is a mass of unnecessary cells growing in the brain. Brain tissue classification from magnetic resonance images (MRI) is of great importance for research and clinical studies of the normal and diseased human brain. In just a few decades, the use of magnetic resonance imaging (MRI) scanners has grown enormously. An MRI scan is the best way to see inside the human body without cutti...

introduction the pericardial agenesis is a rare congenital anomaly. classified as partial or total being asymptomatic in most cases, but some patients are at risk for serious complications and death, and these have indication for surgical treatment. case presentation this paper describes the case of a 21 year old patient, with atypical precordial pain, diagnosed with agenesis of the left perica...

This paper presents a novel application of compositional data analysis methods in the context of color image processing. A vector decomposition method is proposed to reveal compositional components of any vector with positive components followed by compositional data analysis to demonstrate the relation between color space concepts such as hue and saturation to their compositional counterparts....

his head. A magnetic resonance image (left) was taken but no abnormality was found. The patient admitted our hospital for further examination. The magnetic resonance image taken by former hospital demonstrated an abnormal intensity in the fatty tissue in the skull (arrowheads). Subsequent bone image CT (right) at our hospital showed multiple osteolytic lesions in the skull. He was diagnosed as ...

We have worked on the measurement protocol and related image reconstruction of 4D data sets in the field of time-resolved Contrast-Enhanced Magnetic Resonance Angiography (CE-MRA). The method aims at improving the interpolation of sparsely sampled -space data. It is based on exploiting prior knowledge on the time courses (TCs) of the image pixels, when monitoring the uptake of contrast agents i...

Researchers in the US have used magnetic resonance imaging (MRI) to create highest-resolution image of a mouse brain ever made.

High image contrast in magnetic resonance imaging (MRI) can be achieved by hyperpolarizing the nuclei of interest. Dynamic nuclear polarization (DNP) is a method to create hyperpolarization where excited electron spins induce a larger nuclear spin polarization. Imaging material that has been hyperpolarized by DNP is also known as Overhauser-enhanced magnetic resonance imaging (OMRI). An imager ...

We propose a method for registration of 3D fetal brain ultrasound with a reconstructed magnetic resonance fetal brain volume. This method, for the first time, allows the alignment of models of the fetal brain built from magnetic resonance images with 3D fetal brain ultrasound, opening possibilities to develop new, prior information based image analysis methods for 3D fetal neurosonography. The ...

This article is based on an introductory lecture given for the past many years during the "MR Physics and Techniques for Clinicians" course at the Annual Meeting of the ISMRM. This introduction is not intended to be a comprehensive overview of the field, as the subject of magnetic resonance imaging (MRI) physics is large and complex. Rather, it is intended to lay a conceptual foundation by whic...

Image segmentation is an essential procedure in many applications of image processing. Image segmentation can be classified to boundary representation and regional representation. Magnetic Resonance Image (MRI) is one of the best technologies currently being used for diagnosing Brain Tumor in advanced stages. MRI is a form of medical imaging using nuclear magnetic resonance of protons in the bo...