The investigators propose a longitudinal study evaluating post-treatment changes in patients with squamous cell carcinoma (SCC) of the neck using an innovative optimized diffusion-weighted imaging (DWI) pulse sequence to identify more accurately recurrent tumors as well as early non-responders to therapy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
8
The research MRI study of the head and neck will be performed on a Siemens 3T MRI Scanner system
Standard of care
Washington University School of Medicine
St Louis, Missouri, United States
Apparent Diffusion Coefficient Mean (ADCmean)
* ADC=measure of the magnitude of diffusion (of water molecules) within tissue * The primary tumor, suspicious lesion, and/or area of post-treatment change will be identified in anatomical images \& then outlined in the ADC sequence, excluding areas of cystic change and necrosis. If there are multiple lesions, only the dominant lesion with the lowest ADC will be used for analysis * A histogram analysis method will examine the distribution of ADC values within each region of interest (ROI) * ADCmean will describe distribution of ADC measurements in tumor/non-tumor tissues \& independent sample t-test will compare ADC measurements between the 2 groups
Time frame: 2-3 weeks post-standard of care treatment
Apparent Diffusion Coefficient Lowest Value in a Tumor (ADCmin)
* ADC=measure of the magnitude of diffusion (of water molecules) within tissue * The primary tumor, suspicious lesion, and/or area of post-treatment change will be identified in anatomical images \& then outlined in the ADC sequence, excluding areas of cystic change and necrosis. If there are multiple lesions, only the dominant lesion with the lowest ADC will be used for analysis * A histogram analysis method will examine the distribution of ADC values within each region of interest (ROI) * ADCmin will describe distribution of ADC measurements in tumor/non-tumor tissues \& independent sample t-test will compare ADC measurements between the 2 groups
Time frame: 2-3 weeks post-standard of care treatment
Number of Participants That Were Non-responders to Treatment on Both the DWI MRI and the Standard of Care FDG PET/CT
Time frame: 2-3 weeks post-standard of care treatment
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