Linked Life Data

2992024

Source:http://linkedlifedata.com/resource/pubmed/id/2992024

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1985-9-19
pubmed:abstractText
11C-labelled L-methionine uptake was measured in 7 patients with brain tumours prior to surgery, and in 2 patients with infarction, using PET. The strongest uptake occurred in tumours with a high grade of malignancy (astrocytoma IV: Tumour/Non-Tumour T/NT = 2.6) while low-grade tumours accumulated less activity (astrocytoma II: T/NT = 1.4). Conventional 99mTc DTPA scans revealed a damage of blood brain barrier (BBB) in 4 patients (2 infarctions) with no or only slight 11C-methionine accumulation, while one patient with negative 99mTc-scan and negative CT accumulated methionine in the tumour region (astrocytoma II). PET, MRI, and CT are complementary with regard to extent of tumour tissue, necrotic areas and oedema. None of the brain tumours or infarcted regions took up IMP (123I amphetamine). The investigated regions showed definite uptake defects ranging from 10-50% if compared with the contralateral side. In view of the chemical pathway of methionine it is concluded that the uptake reflects metabolic activity in brain tumour tissue rather than a diffuse uptake due to BBB damage.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1438-9029
pubmed:author
pubmed:issnType
Print
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
133-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
[11C-methionine PET, IMP-SPECT, CT and MRI in brain tumors].
pubmed:publicationType
Journal Article, Comparative Study, English Abstract