orrhage associated with hypertensive stroke by echo-planar gradientecho T2*-weighted MRI. Stroke 2000; 31: 1646–1650 25. Cho A.-H, Lee S.B., Han S.J. et al. Impaired kidney function and cerebral microbleeds in patients with acute ischemic stroke. Neurology 2009; 73: 1645–1648 26. Shima H, Ishimura E, Naganuma T et al. Cerebral microbleeds in predialysis patients with chronic kidney disease. Nep...

PURPOSE We aimed to retrospectively compare three-dimensional vascular maps of both breasts obtained by dynamic magnetic resonance imaging (MRI) and determine the association of one-sided vascular prominence with ipsilateral breast cancer. MATERIALS AND METHODS MRI was performed using gadolinium in 194 cases. Two readers scored vascular density using maximum intensity projections (MIPs). Dyna...

3 convexities were visualized: the aortic knob, pulmonary artery, and convexity of the left atrium. In addition, 2 radiotransparent bands were seen, one between the aortic knob and the pulmonary artery, and another between the cardiac base and the left hemidiaphragm. On magnetic resonance imaging, T2-weighted gradientecho (*) axial (Figure 2), and coronal (Figure 3) views Congenital Absence of ...

Objective: To evaluate a comprehensive MRI protocol that investigates for cancer, vascular disease, and degenerative/ inflammatory disease from the head to the pelvis in less than 40 minutes on a new generation 48-channel 3T system. Materials and Methods: All MR studies were performed on a 48-channel 3T MR scanner. A 20-channel head/neck coil, two 18-channel body arrays, and a 32-channel spine ...

Wigmore, D. M., B. M. Damon, D. M. Pober, and J. A. Kent-Braun. MRI measures of perfusion-related changes in human skeletal muscle during progressive contractions. J Appl Physiol 97: 2385–2394, 2004. First published August 6, 2004; doi:10.1152/ japplphysiol.01390.2003.—Although skeletal muscle perfusion is fundamental to proper muscle function, in vivo measurements are typically limited to thos...

The basic idea of parallel imaging is to reduce the number of acquisition steps (i.e. phase-encoding steps) by decreasing the sampling density in kspace. Artefacts, in particular aliasing artefacts, that would result from the reduced sampling density are compensated by employing image data from several independent coil elements with different spatial sensitivity profi les for reconstruction. Th...

MAGNETIC RESONANCE IMAGING has long been recognized as a useful tool for the non-invasive evaluation of the thoracic vasculature. Unlike computed tomography and conventional angiography, MRI is not associated with the concerns related to ionizing radiation exposure or to contrast-related nephrotoxicity. MRI is also capable of oblique image acquisition and multiplanar reformation, which aids the...