Comparison of T2∗ mapping between regular echo time and ultrashort echo time with 3D cones at 3 tesla for knee meniscus
نویسندگان
چکیده
منابع مشابه
Comparison of Lung T2* Measurements at 1.5T and 3.0T with Ultrashort Echo Time (UTE) Sequence
Introduction: The short T2* of lung is mainly caused by the magnetic susceptibility difference between lung tissue and airway. Accurate assessments of lung T2* may be important as it has the potential to detect structural and functional changes caused by lung diseases such as emphysema, chronic bronchitis and fibrosis. For example, emphysema irreversibly destroys the tissues of the alveolar wal...
متن کاملOptimized 3D ultrashort echo time pulmonary MRI.
PURPOSE To optimize 3D radial ultrashort echo time MRI for high resolution whole-lung imaging. METHODS 3D radial ultrashort echo time was implemented on a 3T scanner to investigate the effects of: (1) limited field-of-view excitation, (2) variable density readouts, and (3) radial oversampling. Improvements in noise performance and spatial resolution were assessed through simulation and phanto...
متن کاملDesigning long-T2 suppression pulses for ultrashort echo time imaging.
Ultrashort echo time (UTE) imaging has shown promise as a technique for imaging tissues with T2 values of a few milliseconds or less. These tissues, such as tendons, menisci, and cortical bone, are normally invisible in conventional magnetic resonance imaging techniques but have signal in UTE imaging. They are difficult to visualize because they are often obscured by tissues with longer T2 valu...
متن کاملSingle Echo Time Glutamate Editing at 3 Tesla
Introduction Glutamate plays an important role in normal brain function and in brain disorders. Recently, MRS measurement of total glutamate concentration has been applied to studying several neurological and psychiatric disorders. Short-TE single voxel MRS methods cannot separate glutamate from overlapping resonances at field strengths accessible to most clinical studies. As a result, spectral...
متن کاملUltrashort Echo Time Imaging of Cortical Bone at 7 Tesla Field Strength
Introduction MRI at ultra-high field (UHF) strength of 7 Tesla has been increasingly used and optimized for in vivo applications over the past few years. In particular, the increased signal to noise ratio (SNR) renders this new modality very attractive for imaging soft tissues in the human body. More solid or semi-solid tissues such as trabecular and cortical bone provide little to no signal in...
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: Medicine
سال: 2018
ISSN: 0025-7974,1536-5964
DOI: 10.1097/md.0000000000013443