Multisection fat-water imaging with chemical shift selective presaturation.
نویسندگان
چکیده
Proton chemical shift imaging yielding separate water and lipid images was performed in a multisection mode on a clinical 1.5-T whole-body magnetic resonance imaging unit. Imaging was performed with a minor modification of the standard multisection spin-warp technique: that is, the addition of a sinc pulse or a soft square pulse and a homospoil gradient at the beginning of the pulse sequence. Phantom and human anatomic images are presented.
منابع مشابه
Rapid Fat Suppressed Imaging: Application to the Cartilage and the Breast
Q. Peng, R. W. McColl, P. T. Weatherall Radiology, UT Health Science Center at San Antonio, San Antonio, TX, United States, Radiology, UT Southwestern Medical Center, Dallas, TX, United States INTRODUCTION Fat suppression is an important MRI procedure widely employed in many research and clinical applications. Fat suppression reduces chemical shift artifacts, enhances lesion conspicuity, and im...
متن کاملCoronary mra angiography at 3T: fat suppression versus water-fat separation
Background Suppression of lipid signal is a basic requirement in coronary magnetic resonance angiography (CMRA) because coronary arteries are embedded in epicardial fat and signal from fat can decrease coronary vessel conspicuity. Most CMRA scans are currently performed with fat suppression techniques such as Spectral Presaturation with Inversion Recovery (SPIR). However, methods based on spect...
متن کاملThe ultrastructure of bone using selective saturation in SWIFT at 9.4 T
INTRODUCTION In musculoskeletal imaging there is an abundance of intrinsic water and fat interfaces leading to problems of image blurring. SWIFT (Sweep Imaging with Fourier Transform) [1] is a novel imaging sequence having virtually zero TE and is well suited for musculoskeletal applications. However SWIFT, as well as other radial acquisition methods are prone to chemical shift blurring artifac...
متن کاملFast gradient-echo chemical-shift imaging.
A fast chemical-shift imaging using the gradient-echo technique is proposed for the separation of the water and fat in human in vivo imaging. This technique also incorporates magnetic field inhomogeneity correction in the fast chemical-shift imaging. Experimental results of the proposed imaging technique demonstrate that the method would be useful for quick in vivo water-fat separation imaging ...
متن کاملSpiral water-fat imaging with integrated off-resonance correction on a clinical scanner.
PURPOSE To integrate water-fat-resolved spiral gradient-echo imaging with off-resonance correction into a clinical MR scanner and to evaluate its basic feasibility and performance. MATERIALS AND METHODS Three-point chemical shift imaging was implemented with forward and strongly T(2)*-weighted reverse spiral sampling and with off-resonance correction after water-fat separation. It was applied...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Radiology
دوره 164 2 شماره
صفحات -
تاریخ انتشار 1987