Study of the Fast Inversion Recovery Pulse Sequence: : With Reference to Fast Fluid Attenuated Inversion Recovery and Fast Short TI Inversion Recovery Pulse Sequence
نویسندگان
چکیده
منابع مشابه
Fast fluid-attenuated inversion-recovery MR of intracranial infections.
PURPOSE To assess the usefulness of fast fluid-attenuated inversion-recovery (FLAIR) MR sequences in the diagnosis of intracranial infectious diseases. METHODS We compared fast FLAIR images with conventional spin-echo images (T1- and T2-weighted) obtained in 20 patients with infectious diseases (six with encephalitis, five with brain abscesses, three with meningitis, two with meningoencephali...
متن کاملMR of the spine with a fast T1-weighted fluid-attenuated inversion recovery sequence.
PURPOSE To optimize a T1-weighted fast fluid-attenuated inversion recovery (FLAIR) sequence using computer-simulated data and to study its clinical utility for imaging the spine. METHODS Relative signal intensities and contrast of relevant normal and pathologic tissues in the spine were computed using an inversion recovery equation modified to account for a hybrid RARE (rapid acquisition with...
متن کاملFast T1 Mapping using modified Double-Inversion Recovery pre-pulse
INTRODUCTION The rapid measurement of the longitudinal relaxation time (T1) would allow for dynamic quantification of tissue perfusion or therapy response after administration of an extracellular or target specific T1 lowering contrast agent. Currently used T1 mapping methods are based on Inversion Recovery (IR) approaches and the subsequent sampling of the recovery of the Mz magnetization [1]....
متن کاملThe effect of inversion times on the minimum signal intensity of the contrast agent concentration using inversion recovery t1-weighted fast imaging sequence
Background :Inversion recovery (IR) pulse sequences can generate T1-weighted images with a different range of inversion time (TI) to suppress or null the signal intensity (SI) for a specified tissue. In this study, we aimed to investigate the effect of TI values on the concentration of the contrast agent, which leads to a minimum signal intensity, using an inversion recovery T1-weighted 3-dim...
متن کاملImproved fat water separation with water selective inversion pulse for inversion recovery-based cardiac MRI sequence
Background Chemical shift based water-fat separation methods can be used to reconstruct simultaneous fat and water images, thereby improving the sensitivity of fat detection using a positive fat contrast. The presence of fatty infiltration is a hallmark pathological feature of arrhythmogenic right ventricular cardiomyopathy (ARVC). Furthermore, the presence of fatty infiltration in chronic myoc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1997
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003109749