When imaging the brain stem, it is mandatory to acquire thin (3-5-mm) axial proton-density-
(Fig 1) and T2-weighted(Fig 2) images with in-plane spatial resolution of 1 mm or less. Flow …

The brains of anesthetized 7‐month‐old male hooded rats were imaged in coronal, sagittal,
and horizontal planes at 4.7 T. Images were obtained with a section thickness of 0.6 mm and …

The basic features of an NMR imaging system are outlined and three pulse sequences
which produce images with varying dependence on proton density T 1 and T 2 are …

The brain has been the principal area of clinical interest in proton MR imaging since the first
clinical scans in 1980. The technique has evolved rapidly and promises to supplement x-ray …

Gradient-echo pulse sequences can reduce imaging time and decrease motion artifacts. If
gradient-echo pulse sequences are shown to be comparable to spin-echo sequences in MR …

PURPOSE To determine the value of the gradient-and spin-echo (GRASE) technique as
compared with the fast spin-echo and conventional spin-echo techniques in MR imaging of …

MR imaging was performed on three formaldehyde-fixed brainstem specimens that were
sectioned in the axial plane and myelin stained. The histologic sections were used to identify …

The authors evaluated a three-dimensional Fourier transform implementation of a very short
repetition time (TR)(24 msec), steady-state free precession (SSFP) pulse sequence for …

Fig. 1.—32-year-old healthy man. Echoplanar images of same slice show bolus of
paramagnetic contrast material passing through tissues. Imaging was performed at rate of …

Single‐voxel proton spectra of the human brain were recorded in five subjects at both 1.5 T
and 3.0 T using the STEAM pulse sequence. Data acquisition parameters were closely …