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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
761
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pubmed:dateCreated |
1991-7-3
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pubmed:abstractText |
Selective uptake of radiolabelled meta-iodobenzylguanidine (mIBG) in neuroblastoma provides a possible approach to biologically targeted radiotherapy of this disease. A mathematical model was used to predict absorbed doses to tumours of varying size from therapeutic 131I-mIBG, based on measurements of 125I-mIBG uptake in surgically excised tumours from six patients. Two size categories of tumour target were considered: bulk tumour and microscopic disease. The predicted absorbed doses were compared with doses calculated to achieve a 50% probability of tumour cure. The analysis shows that the probability of tumour cure depends strongly on mIBG uptake, effective half-life of mIBG in tumour and tumour diameter. Small microtumours may be relatively resistant to mIBG treatment owing to the limited absorption of 131I beta-energy. The product of patient mass and percentage uptake per unit mass of tumour may be a useful indicator of therapeutic outcome when targeted radiotherapy is used for the treatment of paediatric tumours.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0007-1285
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
64
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
428-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2036567-3-Iodobenzylguanidine,
pubmed-meshheading:2036567-Child,
pubmed-meshheading:2036567-Contrast Media,
pubmed-meshheading:2036567-Half-Life,
pubmed-meshheading:2036567-Humans,
pubmed-meshheading:2036567-Iodine Radioisotopes,
pubmed-meshheading:2036567-Iodobenzenes,
pubmed-meshheading:2036567-Mathematics,
pubmed-meshheading:2036567-Models, Biological,
pubmed-meshheading:2036567-Neuroblastoma,
pubmed-meshheading:2036567-Radiotherapy Dosage
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pubmed:year |
1991
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pubmed:articleTitle |
Implications of the uptake of 131I-radiolabelled meta-iodobenzylguanidine (mIBG) for the targeted radiotherapy of neuroblastoma.
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pubmed:affiliation |
Beatson Oncology Centre, Belvidere Hospital, Glasgow, UK.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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