A Pilot Study of PET-CT in the Assessment of Pulmonary Nodules in Children With Malignant Solid Tumors
Because the management of children with solid tumors hinges on the extent of disease, it is crucial to identify metastatic sites. Helical chest computed tomography (CT) is the standard method of excluding pulmonary metastases. However, CT lacks molecular information regarding nodule histology and often biopsy is required to exclude malignancy. Biopsy procedures carry known risks including those associated with anesthesia and sedation, infection, pneumothorax, hemorrhage, pain and other post-procedure and post-operative complications and may also add unnecessary cost to the management of the patient. We found that the ability of three experienced pediatric radiologists to correctly predict nodule histology based on CT imaging features was limited (57% to 67% rate of correct classification). Also, there was only slight to moderate agreement in nodule classification between these reviewers.
Furthermore, of 50 children who have undergone pulmonary nodule biopsy at St. Jude in the last five years, 44% (22/50) had only benign nodules.
Adult studies have shown that a nuclear medicine scan called fluoro-deoxyglucose (FDG) positron emission tomography (PET) and the fusion modality PET-CT are superior to diagnostic CT in distinguishing benign from malignant pulmonary nodules because FDG PET gives information about the metabolic activity of the nodule. Nodules that are malignant have more metabolic activity, hence more FDG uptake/intensity, than those that are benign. There has been little work done in children to determine the value of PET or PET-CT in the evaluation of pulmonary nodules.
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Tennessee
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Memphis, Tennessee, Forenede Stater, 38105
- Mary E. McCarville
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Participant has a known or clinically suspected solid malignancy (excluding brain tumor)
- Nodule must be discovered at the time of diagnosis of the primary malignancy or after the completion of therapy
Exclusion Criteria:
- Participant has not been off therapy for at least 3 weeks before undergoing PET-CT
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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1
there is only one group/cohort.
This is a non-therapeutic study.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
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To assess the feasibility of performing PET-CT for the evaluation of pulmonary nodules in children with solid malignancies and to obtain preliminary data for sample size determination for a larger, multi-institutional prospective study.
Tidsramme: 2 years
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2 years
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Samarbejdspartnere og efterforskere
Efterforskere
- Ledende efterforsker: Mary E McCarville, MD, St. Jude Children's Research Hospital
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- PETPUL
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