Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions |
umls-concept:C0023884,
umls-concept:C0032723,
umls-concept:C0060933,
umls-concept:C0060934,
umls-concept:C0205171,
umls-concept:C0205307,
umls-concept:C0449851,
umls-concept:C0450363,
umls-concept:C0476287,
umls-concept:C0681850,
umls-concept:C0917874,
umls-concept:C1511237,
umls-concept:C1533685,
umls-concept:C1550436,
umls-concept:C1550501,
umls-concept:C1705509,
umls-concept:C1706203,
umls-concept:C1707455,
umls-concept:C2348791,
umls-concept:C2349001,
umls-concept:C2697811
|
pubmed:issue |
803
|
pubmed:dateCreated |
1995-2-16
|
pubmed:abstractText |
Two-dimensional time-of-flight (2D-TOF) magnetic resonance (MR) portography tends to produce general image degradation owing to the phase discrepancy caused by multiple breath-holding. To solve this problem, three-dimensional (3D)-MR portographies were reconstructed from image data acquired with a bolus injection of Gd-DTPA with single breath-holding in 20 subjects with normal liver function. 2D-TOF MR portographies were obtained beforehand for the comparison. All the images were displayed in a cine mode for the two MR angiographic techniques. Visualization was assessed as positive when the vessel was visualized without disruption. 3D-MR portography produced a positive rate of over 80% for all but the left first-order branch. With the 2D-TOF techniques, however, only the portal trunk and left second-order branches were visualized at this rate. The positive rate for most portal branches was significantly higher with 3D-MR portography than with the 2D-TOF technique. In conclusion, 3D-MR portography makes it possible to depict the portal venous system without disruption using a short measurement time with single breath-holding and has the potential to become a powerful method for abdominal MR angiography.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
AIM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
|
pubmed:issn |
0007-1285
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
67
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1078-82
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:7820399-Adult,
pubmed-meshheading:7820399-Female,
pubmed-meshheading:7820399-Gadolinium DTPA,
pubmed-meshheading:7820399-Humans,
pubmed-meshheading:7820399-Injections, Intravenous,
pubmed-meshheading:7820399-Magnetic Resonance Angiography,
pubmed-meshheading:7820399-Male,
pubmed-meshheading:7820399-Middle Aged,
pubmed-meshheading:7820399-Organometallic Compounds,
pubmed-meshheading:7820399-Pentetic Acid,
pubmed-meshheading:7820399-Portography,
pubmed-meshheading:7820399-Respiration,
pubmed-meshheading:7820399-Sensitivity and Specificity
|
pubmed:year |
1994
|
pubmed:articleTitle |
Single breath-holding three-dimensional magnetic resonance portography with bolus injection of Gd-DTPA in subjects with normal liver: a comparison with two-dimensional time-of-flight technique.
|
pubmed:affiliation |
Department of Radiology, Tottori University School of Medicine, Yonago, Japan.
|
pubmed:publicationType |
Journal Article,
Comparative Study
|