MRI in Diagnosing Solid Tumors of the Eye and Orbit
|Eye Cancer||Procedure: dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI)||Phase 1|
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Dynamic Contrast Enhanced Magnetic Resonance Imaging for Non-Invasive Diagnostic Work-Up in Solid Tumors of the Eye and Orbit.|
- Diagnosis of benign vs. malignant lesions using DCE-MRI [ Time Frame: Up to 5 years ]Crude comparisons between the groups of patients (benign vs. malignant) will be performed using a one-way ANOVA or nonparametric Wilcoxon Rank Sum test, where appropriate. Outliers and influential covariate patterns will be identified using diagnostic plots. Depending on the complexity of the models, exact methods may be necessary.
- Improved characterization of different malignant tumor types [ Time Frame: Up to 5 years ]Logistic regression models will be applied to determine the factors most predictive of malignancy using forward selection methods described in Hosmer-Lemeshow goodness-of-fit test as well as the area under the Receiver-Operator Characteristic (ROC) curve. Outliers and influential covariate patterns will be identified using diagnostic plots. Depending on the complexity of the models, exact methods may be necessary.
|Study Start Date:||June 2004|
|Estimated Primary Completion Date:||December 2020 (Final data collection date for primary outcome measure)|
Experimental: Dynamic contrast-enhanced magnetic resonance imaging
Patients undergo Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI)
Procedure: dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI)
Studies will be performed on standard clinical MR Systems which are available on Campus. With the proposed imaging technique, we are able to acquire a 3D volume covering the orbit with a temporal resolution of approximately 15s. The affected eye will be immobilized to reduce motion artifacts. A routinely used MR contrast agent will be administered in a dose of 0.1mmol/kg bodyweight.
I. To determine the feasibility of DCE-MRI (dynamic contrast enhanced magnetic resonance imaging) as non-invasive imaging tool to image contrast enhancement in ocular and orbital tumors.
II. To compare contrast enhancement and its distribution within orbital tissue. III. To assess potential differences in contrast enhancement which help to characterize malignant lesions as well as discriminate these from benign tissue.
IV. To compare image characteristics between clinical high field end ex-vivo ultra high field magnetic resonance (MR) imaging.
V. To correlate imaging findings with obtained histology by comparing contrast enhancement parameters, e.g. maximum signal intensity, to histology characteristics, e.g. vascular density.
Patients undergo DCE-MRI.
After completion of study treatment, patients are followed up every 6 months for up to 5 years.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01653080
|Contact: The Ohio State University Comprehensive Cancer Center||1-800-293-5066||Jamesline@osumc.edu|
|Contact: Michael Knopp, MDfirstname.lastname@example.org|
|United States, Ohio|
|Ohio State University Medical Center||Recruiting|
|Columbus, Ohio, United States, 43210|
|Contact: Michael V. Knopp 614-293-9998 email@example.com|
|Principal Investigator: Michael V. Knopp, MD|
|Sub-Investigator: Mohamed Abdel-Rahman, MD, Ph.D|
|Sub-Investigator: John Christofordis, MD|
|Sub-Investigator: Frederick Davidorf, MD|
|Sub-Investigator: Steffen Sammet, MD, Ph.D.|
|Principal Investigator:||Michael Knopp||Ohio State University Comprehensive Cancer Center|