Bo anchored spatial excitation (BASE) for effective fat suppression under Bo inhomogeneity: implication for parallel transmission

نویسندگان

  • A. W. Song
  • N-K. Chen
  • B. Soher
چکیده

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Four dimensional spectral-spatial fat saturation pulse design.

PURPOSE The conventional spectrally selective fat saturation pulse may perform poorly with inhomogeneous amplitude of static (polarizing) field (B0 ) and/or amplitude of (excitation) radiofrequency field (B1 ) fields. We propose a four dimensional spectral-spatial fat saturation pulse that is more robust to B0/B1 inhomogeneity and also shorter than the conventional fat saturation pulse. THEOR...

متن کامل

Fat-Water Imaging

Reliable and uniform fat-suppression is essential for accurate diagnoses in many areas of MR imaging. The purpose of this talk is to provide an overview of water-fat imaging in clinical practice. A review of the relevant physics of chemical shift between water and fat, and how this can be exploited to improve image quality through fat suppression and tissue characterization will be explored. Wa...

متن کامل

Pulmonary Scintiscan Findings in Sulfur Mustard Injured Patients Suspected for Gastroesophageal Reflux; a Descriptive Cross-Sectional Study

Background:Gastroesophageal reflux disease (GERD) prevalence in patients with sulfur mustard (SM)-induced bronchiolitis obliterans (BO) is higher than exposed cases with mild lung injuries. In this study, we aimed to evaluate the prevalence of microaspirations using nuclear scintiscan among BO patients with SM exposure. Methods: This was a prospective cross-sectional study conducted on patient...

متن کامل

Time-Efficient Slab Selective Water Excitation

Introduction Spectral spatial (SPSP) RF pulses are simultaneously selective in both the spectral and spatial domains [1]. SPSP pulses consist of a train of slice selective RF subpulses applied simultaneously with an oscillating slice select gradient. When used for spatially selective water or fat excitation, the difference in frequency between water and fat, ∆ , limits the spacing between RF su...

متن کامل

High-flip-angle slice-selective parallel RF transmission with 8 channels at 7 T.

At high magnetic field, B(1)(+) non-uniformity causes undesired inhomogeneity in SNR and image contrast. Parallel RF transmission using tailored 3D k-space trajectory design has been shown to correct for this problem and produce highly uniform in-plane magnetization with good slice selection profile within a relatively short excitation duration. However, at large flip angles the excitation k-sp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008