A Pilot Study of 1H-Nuclear Magnetic Resonance Spectroscopic Imaging in Pediatric Patients With Primary and Metastatic Brain Tumors
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- To define specific patterns of metabolises using long-echo time multislice proton nuclear magnetic resonance spectroscopic imaging in pediatric patients with brain tumors.
研究概览
简要总结
Brain tumors represent the most common solid tumor of childhood. Treatment generally entails surgery and radiation, but local recurrence is frequent. Chemotherapy is often used in an adjuvant setting, to delay radiation therapy or for resistant disease. Children with brain tumors are generally followed by imaging studies, such as CT or MRI. Difficulty arises in trying to distinguish tumor regrowth from treatment related edema, necrosis or radiation injury. Proton Nuclear Magnetic Resonance Spectroscopic (NMRS) Imaging is a non-invasive method of detecting and measuring cellular metabolites in vivo. NMRS imaging complements routine MRI by giving chemical information in conjunction with spatial information obtained by MRI.
This study will be conducted to determine NMRS imaging patterns before, during and after chemotherapy in pediatric patients with primary or metastatic brain tumors in an attempt to identify and characterize specific patterns of metabolites related to tumor regrowth, tumor response to therapy, edema or necrosis.
详细描述
Background:
- Brain tumors represent the most common solid tumor of childhood. Treatment generally includes surgery and radiation, but recurrences are frequent, particularly for high-grade lesions.
- Chemotherapy is often used in an adjuvant setting, to delay radiation therapy or for resistant disease.
- Children with brain tumors are generally followed by imaging studies, such as CT or MRI.
- Difficulty arises in trying to distinguish tumor regrowth from treatment related edema, necrosis or radiation injury.
- Proton Nuclear Magnetic Resonance Spectroscopic (NMRS) Imaging is a non-invasive method of detecting and measuring cellular metabolites in vivo.
Objective:
- To determine NMRS imaging patterns before, during and after chemotherapy in pediatric patients with primary or metastatic brain tumors
- To identify and characterize specific patterns of metabolites related to tumor regrowth, tumor response to therapy, edema or necrosis.
Eligibility:
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- — 至 21 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
To define specific patterns of metabolises using long-echo time multislice proton nuclear magnetic resonance spectroscopic imaging in pediatric patients with brain tumors.
时间窗: at time of disease evaluation
in vivo measurements of tissue metabolites (NAA, Cho,Cr, Lac) and what they reflect
次要结局
- Distinguish spectroscopic patterns associated with tumor progression, necrosis and edema(at time of disease evaluation)
- Determine if early metabolic changes are predictive of response(at time of disease evaluation)