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.
調査の概要
状態
条件
詳細な説明
研究の種類
入学 (実際)
連絡先と場所
研究場所
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Tennessee
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Memphis、Tennessee、アメリカ、38105
- Mary E. McCarville
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
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
研究計画
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
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1
there is only one group/cohort.
This is a non-therapeutic study.
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
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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.
時間枠:2 years
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2 years
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協力者と研究者
捜査官
- 主任研究者:Mary E McCarville, MD、St. Jude Children's Research Hospital
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
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QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
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最終確認日
詳しくは
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