background:  nowadays mri examinations have been widely used in clinical applications for many diagnoses. the use of contrast agent in mri improves lesion detection and characterization and causes more accurate diagnosis.  objectives: the aim of this study was comparing to optimal dose of magnevist contrast agent in modified t1w se (spin echo), t1w fse (fast spin echo) and t1w gre (gradient ech...

This article describes the Z-SAGA pulse sequence, a technique for recovering susceptibility losses in EPI images for neuroimaging applications. The pulse sequence is based on an asymmetric spin echo EPI sequence and acquires a gradient echo image and an asymmetric spin echo image in a single shot. For one of the images, a z-shim gradient pulse is applied to compensate for susceptibility-related...

Introduction: Measurement of proton transverse relaxation time (T2) can be used to detect pathological changes in tissue for a variety of clinical applications, including identification of edema and iron overload. The most widely used T2 mapping pulse sequence is the Carr-Purcell-Meiboom-Gill (CPMG) sequence [1,2]. For body MRI, however, a CPMG pulse sequence is typically performed with navigat...