During the same MR imaging scan that revealed these findings, we also performed 3D-ASL (3D fast spin-echo acquisition with spiral readout, pseudocontinuous ASL (pCASL); repetition time/effective echo time, 4590/10.5 ms; field of view, 240 × 240 mm2; labeling time, 1450 ms; post-labeling delay, 1525 ms; slice thickness, 4.0 mm; number of slices, 32; and number of excitations, 2) using a 3-Tesla ...

A technique is developed that will calculate accurate and reliable imaging geometries and three-dimensional (3D) positions from biplane images of a calibration phantom. The calculated data provided by our technique will facilitate accurate 3D analysis in various clinical applications. Biplane images of a Lucite cube containing lead beads 1 mm in diameter were acquired. After identifying corresp...

OBJECTIVE The purposes of this study were to evaluate the feasibility of a free-breathing 3D gradient-recalled echo sequence with radial data sampling (radial 3D GRE) in abdominal MRI compared with a standard 3D GRE volumetric interpolated breath-hold examination (VIBE) sequence for imaging of cooperative patients and to perform a preliminary assessment in imaging of noncooperative patients. ...

BACKGROUND AND PURPOSE The detection of microbleeds differs strongly between studies, due to differences in scan protocol. This study aims to compare the visualization of microbleeds with 3D T2*-weighted imaging at 1.5T with 3D dual-echo T2*-weighted imaging at 7T. MATERIALS AND METHODS Thirty-four patients (29 male; mean age, 58 ± 12 years) with atherosclerotic disease from the Second Manife...

Introduction: Rib fractures are common presentations at emergency departments across the UK. 21% of emergency admissions are related to rib fractures, resulting from up to 39% of all blunt-trauma to the chest. Imaging is essential for identification of rib fractures but also for planning potential surgical intervention. The introduction of 3D imaging has enhanced the pre-surgical planning in ma...

Background While CMR has become instrumental in imaging complex congential heart disease (CHD), limitations remain including significant flow and metal artifact on cine images. 2D dark blood imaging generally requires gating to diastole which may not capture the maximal vessel dimensions, is time consuming and dependent on precise plane positioning. Traditional 3D whole heart sequences are also...

OBJECTIVE To compare the use of 3D driven equilibrium (DRIVE) imaging with 3D balanced fast field echo (bFFE) imaging in the assessment of the anatomic structures of the internal auditory canal (IAC) and inner ear at 3 Tesla (T). MATERIALS AND METHODS Thirty ears of 15 subjects (7 men and 8 women; age range, 22-71 years; average age, 50 years) without evidence of ear problems were examined on...

OBJECTIVE To assess the feasibility of single-breath-hold three-dimensional cine b-SSFP (balanced steady-state free precession gradient echo) sequence (3D-cine), accelerated with k-t BLAST (broad-use linear acquisition speed-up technique), compared with multiple-breath-hold 2D cine b-SSFP (2D-cine) sequence for assessment of left ventricular (LV) function. METHODS Imaging was performed using ...