The DIET (or dual interval echo train) sequence, a modification of the fast spin echo (FSE) sequence that selectively reduces signal from fat in MR images, has been investigated. The DIET sequence uses an initial echo spacing longer than that of a conventional FSE sequence, thus allowing J coupling-induced dephasing to take effect. The sequence is evaluated theoretically, and its effectiveness ...

a palladium composite membrane was prepared via electroless plating technique using organic-inorganic method during activation process. the ceramic support surface was modified by two tio2-boehmite and one γ-alumina layers to avoid pd penetration in support pores. thin and defect-free pd composite membrane was obtained by creating a relative smoothness on the ceramic support and using pd nanopa...

In this issue of the AJNR, Rocca et al (page 1710) report a comparison of three imaging techniques for detection of plaques in patients with definite multiple sclerosis (MS). They find that a fast short tau inversion recovery (fast STIR) technique was superior to a fast spin-echo (FSE) and a magnetization transfer–prepared gradient-echo (MTGE) approach. The fast STIR images showed the largest n...

OBJECTIVE To identify the optimal pulse sequence for ferumoxides-enhanced magnetic resonance (MR) imaging in the detection of hepatocelluar carcinomas (HCCs). MATERIALS AND METHODS Sixteen patients with 25 HCCs underwent MR imaging following intravenous infusion of ferumoxides. All MR studies were performed on a 1.5-T MR system, using a phased-array coil. Ferumoxides (Feridex IV) at a dose of...

Pooled faecal culture (PFC) is a widely used test in ovine Johne's disease (OJD) control programmes in Australia but information about its characteristics is limited. We conducted this study to estimate sensitivity and flock-sensitivity of PFC in sheep with different OJD histopathological lesions in simulated flocks with a range of infection prevalence levels. Initially, a known quantity of fae...

Abstract. Friction Stir Extrusion (FSE) is an innovative direct-recycling technology developed for metal machining chips. A rotating die plunged into a cylindrical chamber containing the material to be recycled during procedure. The die's stirring action causes strong bonding, enabling back extrusion of full dense rod. One technology's major flaws process' discontinuity, which limits volume ext...