Functional Medical Imaging Quantization in Prostate Cancer

Study Overview
=================
Brief Summary
-----------------
Prostate cancer is the most common cancer in men over 50 years old and the third leading cause of cancer death. Because of the variety of prostate cancers, different treatments exist. Several criteria guide this management in daily practice: PSA level; TNM stage (digital rectal examination, trans-rectal ultrasound and classical visual imaging) and pathological differentiation with the Gleason score, to which can be added other prognostic criteria: growth and doubling time of the serum PSA, number of positive biopsies and percentage of cancer lesions by biopsy. Functional imaging by PET and MRI is increasingly used in daily clinical practice to characterize prostate cancer, either during initial discovery or during recurrence. In this context, it is the qualitative visual analysis that is mainly used. Quantitative image analysis could add new criteria to guide patient management. Consequently, the objective of this study were: Optimization of 18F-choline PET/CT Acquisition in Prostate Cancer Comparison the quantitative parameters obtained by 18F-Choline PET / CT and both perfusion MRI and histological parameters.

Official Title
-----------------
Optimization of 18F-choline PET/CT Acquisition in Prostate Cancer: Preliminary Results Concerning the Length of the Acquisition

Conditions
-----------------
Prostate Cancer

Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Patients with prostate cancer histologically proven included in Brest University Hospital between 01/07/2012 and 01/10/2015 and underwent F-choline PET/CT and pelvic MRI Patient consent Exclusion Criteria: No lesion on dynamic acquisition on PET/CT and/or on pelvic MRI

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
Male

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------
What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| correlation between Gleason score and dynamic parameters on PET and MRI | study the potential correlation between dynamic parameters on PET and MRI | when anatomopathological report is available, an average of 3 months after the PET/CT | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| reconstructions on 18F-choline PET | determine the mean influx from each reconstruction which is the closest to the objective value | when all 18F-choline PET are performed, an average of 6 months | 
| best fitting on PET and MRI | the Akaike Criteria Information was chose to choose the best fit | when all MRI are performed, an average of 6 months | 
| comparison between data (PSA, TNM stage, EFS and OS) | comparison between data (PSA, TNM stage, EFS and OS) | 01/05/2017 | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
prostate cancer, Fcholine, positron emission tomography, MRI