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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.
Observational Model: Case-Only, Time Perspective: Retrospective
Correlation of MRI results with clinical characteristics of the adnexal mass
Not yet recruiting
Brugmann University Hospital
Published on BioPortfolio: 2016-04-19T17:53:21-0400
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A benign adnexal neoplasm composed of EPITHELIAL CELLS. They typically manifest as solitary papules and occur only in the skin.
Diseases of the uterine appendages (ADNEXA UTERI) including diseases involving the OVARY, the FALLOPIAN TUBES, and ligaments of the uterus (BROAD LIGAMENT; ROUND LIGAMENT).
Neoplasms composed of sebaceous or sweat gland tissue or tissue of other skin appendages. The concept does not refer to neoplasms located in the sebaceous or sweat glands or in the other skin appendages.
A smooth, solid or cystic fibroepithelial (FIBROEPITHELIAL NEOPLASMS) tumor, usually found in the OVARIES but can also be found in the adnexal region and the KIDNEYS. It consists of a fibrous stroma with nests of epithelial cells that sometimes resemble the transitional cells lining the urinary bladder. Brenner tumors generally are benign and asymptomatic. Malignant Brenner tumors have been reported.
The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.
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