May 2015

Introduction

Susceptibility-Weighted Imaging in the Evaluation of Cerebrovascular Hemodynamics

Guest Editor Carlos Zamora

Guest EditorCarlos Zamora

Susceptibility-weighted imaging (SWI) is a high-resolution, fully velocity-compensated gradient-echo MRI sequence that maximizes intrinsic contrast differences between tissues by virtue of their local magnetic properties. This technique exploits susceptibility information contained within phase acquisitions and merges such with magnitude data to generate a clinically usable set of images. Notably, the functional incorporation … more »

Pediatrics

Susceptibility-Weighted Imaging in Pediatric Arterial Ischemic Stroke: A Valuable Alternative for the Noninvasive Evaluation of Altered Cerebral Hemodynamics

Thangamadhan Bosemani

Thangamadhan Bosemani

Our research team has focused on the clinical applications of advanced neuroimaging techniques, such as susceptibility-weighted imaging (SWI) in the evaluation of pediatric neurologic disorders. SWI provides useful functional information about blood oxygenation levels in intracranial vessels. In pediatric arterial ischemic stroke (PAIS), SWI focusing on venous drainage can provide noninvasive information about the degree … more »

Brain

Imaging the Effects of Oxygen Saturation Changes in Voluntary Apnea and Hyperventilation on Susceptibility-Weighted Imaging

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Yulin Ge

Over the last decade, susceptibility weighted imaging (SWI) has grown tremendously as a new clinical face in routine brain MRI in addition to T1- and T2-weighted imaging. It is particularly useful in detecting small intracranial hemorrhages and venous anomalies due to its increased sensitivity to higher susceptibility materials such as iron and deoxyhemoglobin 1.  Although SWI … more »