Fludeoxyglucose F 18 Positron Emission Tomography and Magnetic Resonance Perfusion Imaging in Patients With Neurofibromatosis 1 and Plexiform Neurofibroma
RATIONALE: New imaging procedures such as fludeoxyglucose F 18 positron emission tomography (FDG-PET) and magnetic resonance (MR) perfusion imaging may improve the ability to detect disease progression, help doctors predict a patient's response to treatment, and help plan the most effective treatment.
PURPOSE: This diagnostic trial is studying how well FDG-PET and MR perfusion imaging work in finding disease progression and determining response to treatment in patients with neurofibromatosis 1 and plexiform neurofibroma.
Neurofibromatosis Type 1
Radiation: fludeoxyglucose F 18
Radiation: gadopentetate dimeglumine
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Novel Imaging Modalities For Plexiform Neurofibromas|
- Tumor progression as measured by tumor area and volume at 1 year. [ Time Frame: One year ] [ Designated as safety issue: No ]
|Study Start Date:||April 2002|
|Study Completion Date:||May 2011|
|Primary Completion Date:||May 2011 (Final data collection date for primary outcome measure)|
Experimental: 18FDG-PET scan and MR perfusion
Subjects will undergo MRI for quantitative (2D and 3D) evaluation of plexiform neurofibroma size, MR perfusion scan, and fludeoxyglucose (18FDG) PET scan at the time of study entry. Subjects who are treated for plexiform neurofibroma will undergo another 18FDG PET scan after one year of study entry.
|Radiation: fludeoxyglucose F 18 Radiation: gadopentetate dimeglumine|
- Determine whether fludeoxyglucose F 18 positron emission tomography (FDG-PET) and MR perfusion studies can predict plexiform neurofibroma growth rates in patients with neurofibromatosis 1.
- Determine whether FDG-PET and MR perfusion studies can predict the likelihood of response in patients who are undergoing investigational treatment for plexiform neurofibromas.
- Identify neuroimaging characteristics that distinguish patients who have responded to therapy from those who have not after completion of treatment.
- Stratum 1: Patients undergo MR perfusion scan with gadopentetate dimeglumine and fludeoxyglucose F 18 positron emission tomography (FDG-PET) at baseline and quantitative MRI evaluation at baseline and 1 year.
- Stratum 2: Patients undergo quantitative MRI, MR perfusion scan with gadopentetate dimeglumine, and FDG-PET at baseline and 1 year.
PROJECTED ACCRUAL: A total of 48 patients (32 for stratum 1 and 16 for stratum 2) will be accrued for this study.
|United States, Pennsylvania|
|Abramson Cancer Center of the University of Pennsylvania|
|Philadelphia, Pennsylvania, United States, 19104-4283|
|Children's Hospital of Philadelphia|
|Philadelphia, Pennsylvania, United States, 19104|
|Study Chair:||Michael Fisher, MD||Children's Hospital of Philadelphia|