Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1993-3-11
pubmed:abstractText
The purpose of our study was to assess the utility of CT and MRI in the staging of bladder carcinoma. The overall accuracy of MR is in the range of 66 to 85%. T2 weighted and post-Gadolinium T1 weighted images allow one to differentiate T1-T2 from T3a type of neoplasms. Perivesical fat invasion is well shown with T1w images while pelvic wall invasion is better seen on T2w--images. The overall accuracy of CT ranges from 64 to 92%. CT cannot distinguish stage T1 from stage T3a tumors CT is accurate for demonstrating perivesical fat invasion. In the assessment of lymph node metastases CT and MRI have low sensitivity but high accuracy. Trans-urethral sonography is more accurate than CT and MRI in the staging of parietal invasion and it permits the differentiation between T1, T2 and T3a stages even though the distinction between T2 and T3a type of tumors is not always possible. Trans-urethral sonography is not useful in assessing extravesical extension and lymph node metastases. In summary, trans-urethral sonography is the method of choice for evaluating parietal invasion. CT and MR are very accurate for evaluating perivesical fat invasion and are also quite accurate for evaluating lymph nodes. MRI is superior to CT in distinguishing tumors limited to superficial muscle from those that invade deep muscle. MRI can also be helpful in distinguishing the tumor from fibrosis and edema.
pubmed:language
ita
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0009-9074
pubmed:author
pubmed:issnType
Print
pubmed:volume
141
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
393-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
[A comparison between intraurethral echography, computed tomography and magnetic resonance in the staging of bladder tumors].
pubmed:affiliation
Università degli Studi di Roma La Sapienza.
pubmed:publicationType
Journal Article, Comparative Study, English Abstract, Review