Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1994-2-24
pubmed:abstractText
Pulmonary three-dimensional (3D) time-of-flight (TOF) MR angiography with breath-holding using a paramagnetic contrast medium and a 1.5 Tesla superconducting MR system was performed on a volunteer and five patients with hilar or mediastinal tumors in order to visualize the main pulmonary arteries. Six MR scans (one before and five after a Gd-DTPA injection) were obtained using fast imaging with a steady-state precession (FISP) sequence while the subjects held their breath. The acquisition time was 21 seconds, and images were obtained every 30 seconds. In the normal volunteer, the pulmonary MR angiogram obtained in the first postcontrast scan was successful in visualizing the main pulmonary artery, and its right and left branches to the level of the lobar branches. In the five patients, at the first postcontrast scanning, the pulmonary arteries had higher signal intensities than the surrounding structures. Therefore, during this imaging period, most tumors could be clearly distinguished from vessels. In images made much later after contrast medium injection, the pulmonary arteries could not be distinguished from the others. Pulmonary 3D TOF MR angiography with breath-holding using a contrast medium is very useful in demonstrating pulmonary vessels and tumors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0288-2043
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
191-5
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Preliminary study of pulmonary three-dimensional time-of-flight MR angiography with breath-holding using a contrast medium.
pubmed:affiliation
Department of Radiology, Hamamatsu University School of Medicine, Japan.
pubmed:publicationType
Journal Article