Evaluation of intratumoural heterogeneity on 18F-FDG PET/CT for characterization of peripheral nerve sheath tumours in neurofibromatosis type 1 View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2013-05

AUTHORS

Johannes Salamon, Thorsten Derlin, Peter Bannas, Jasmin D. Busch, Jochen Herrmann, Maximilian Bockhorn, Christian Hagel, Reinhard E. Friedrich, Gerhard Adam, Victor F. Mautner

ABSTRACT

PURPOSE: The aim of the study was to evaluate the potential usefulness of intratumoural tracer uptake heterogeneity on (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT as compared to a cut-off maximum standardized uptake value (SUVmax) for characterization of peripheral nerve sheath tumours (PNSTs) in neurofibromatosis type 1 (NF1). METHODS: Fifty patients suffering from NF1 were examined by (18)F-FDG PET/CT. Intralesional tracer uptake was analysed qualitatively and semi-quantitatively by measuring the mean and maximum SUV. Uptake heterogeneity was graded qualitatively using a three-point scale and semi-quantitatively by calculating an SUV-based heterogeneity index (HISUV). Cohen's κ was used to determine inter- and intra-rater agreement. Histopathological evaluation and clinical as well as radiological follow-up examinations served as the reference standards. RESULTS: A highly significant correlation between the degree of intratumoural uptake heterogeneity on (18)F-FDG PET and malignant transformation of PNSTs was observed (p < 0.0001). Semi-quantitative HISUV was significantly higher in malignant PNSTs (MPNSTs) than in benign tumours (p = 0.0002). Both intralesional heterogeneity and SUVmax could be used to identify malignant tumours with a sensitivity of 100 %. Cohen's κ was 0.86 for inter-rater agreement and 0.88 for intra-rater agreement on heterogeneity. CONCLUSION: MPNSTs in patients with NF1 demonstrate considerable intratumoural uptake heterogeneity on (18)F-FDG PET/CT. Assessment of tumour heterogeneity is highly reproducible. Both tumour heterogeneity and a cut-off SUVmax may be used to sensitively identify malignant PNSTs, but the specificity is higher for the latter. A combination of both methods leads to a non-significant improvement in diagnostic performance. More... »

PAGES

685-692

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00259-012-2314-6

DOI

http://dx.doi.org/10.1007/s00259-012-2314-6

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1035398400

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/23232507


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Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/s00259-012-2314-6'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/s00259-012-2314-6'

Turtle is a human-readable linked data format.

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RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/s00259-012-2314-6'


 

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