NCT02742870

Diffusion MRI (Magnetic Resonance Imaging) Using ADC (Apparent Diffusion Coefficient) Histograms in the Evaluation of Adnexal Tumor Aggressiveness

Diffusion Magnetic Resonance Imaging Using ADC (Apparent Diffusion Coefficient) Histograms in the Evaluation of Adnexal Tumor Aggressiveness

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 126 (actual)
• Sponsor: Brugmann University Hospital · Academic / Other
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Diffusion-weighted sequences have been routinely performed for years to study the pelvis. They have been so far mainly qualitatively interpreted, that is to say as the absence or presence of an hypersignal at a high b value. The quantitative analysis involves placing the region of interest (ROI) on the apparent diffusion coefficient (ADC) map. The manual placement is very operator dependent, and does not reflect the entirety of the studied mass. In all fields of Magnetic Resonance Imaging, a multiparametric approach integrating diffusion analysis is flourishing. However, the quantitative analysis of the diffusion is still little studied for tumor heterogeneity analysis, including in the gynecological sphere. The investigators will therefore retrospectively evaluate the apparent diffusion coefficient (ADC) histograms, extracted from the diffusion ponderation sequences, of the magnetic imaging resonance analysis of adnexal masses and confront the results with the anatomo-pathology results, for patients having undergone surgery, and/or with the clinical and imagery follow-up results. The investigators goal will be to improve the performance of conventional MRI in the analysis of adnexal masses. The expected benefits of this study are: * a correlation with the histology analysis or the clinical monitoring * an improved prediction of the malignancy of the tumor * an improved magnetic resonance imaging performance for adnexal masses, with better surgical therapeutic management * an improved negative predictive value, thereby ultimately limiting unnecessary surgical explorations.

Conditions

• Adnexal Tumor

Interventions

Type	Name	Description
OTHER	Correlation of MRI results with clinical characteristics of the adnexal mass	Quantitative analysis of the magnetic resonance images realised with the Ingenia 3 Tesla Engine (Philips) and the Area 1,5 Tesla Engine (Siemens), based on the ADC cartography.The post-processing will be realized with the Syngo Onco Care application of Siemens, that allows an histogram analysis of the ADC of all sections of the adnexal mass, as opposed to a section per section approach with the Region of Interest (ROI) method. The results will be correlated with the clinical data regarding the adnexal mass: anatomo-pathology status (malignancy and aggressiveness of the tumor) and the gynecological follow-up.

Timeline

• Start date: 2016-03-08
• Primary completion: 2019-01-30
• Completion: 2019-01-30
• First posted: 2016-04-19
• Last updated: 2020-01-18

Locations

1 site across 1 country: Belgium