The Role of Magnetic Resonance Imaging-Diffusion Tensor Imaging in Predicting Pain Related to Endometriosis: A Preliminary Study

Maria Grazia Porpora, Vinci V, Valeria Vinci, Corrado De Vito, Giuseppe Migliara, Anastasi E, Emanuela Anastasi, Adele Ticino, Ticino A, Serena Resta, Resta S, Carlo Catalano, Benedetti Panici P, Pierluigi Benedetti Panici, Manganaro L, Lucia Manganaro
Journal of Minimally Invasive Gynecology · 2017 · vol. 25(4) , pp. 661–669 · doi:10.1016/j.jmig.2017.10.033 · PMID:29126882 · W2767611424
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This preliminary study investigated whether magnetic resonance imaging diffusion tensor imaging could predict pain associated with endometriosis.

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Abstract

OBJECTIVES: To evaluate the sacral nerve root features by the means of magnetic resonance imaging-diffusion tensor imaging (MRI-DTI) tractography in women with endometriosis and/or adenomyosis, and to analyze the correlations among DTI abnormalities, pain symptoms, and endometriotic lesions found at surgery. DESIGN: A cross-sectional, observational study (Canadian Task Force classification II-2). SETTING: University hospital. PATIENTS: Women (n = 76) with clinical suspicion of endometriosis. INTERVENTIONS: Before surgery, dysmenorrhea, deep dyspareunia, and noncyclic pelvic pain (NCPP) were assessed using a 10-point visual analog scale. MRI enabled a 3-dimensional reconstruction of S1, S2, and S3. Fractional anisotropy was calculated for each root. Laparoscopic treatment of endometriosis was performed in 56 patients. MEASUREMENTS AND MAIN RESULTS: Our findings revealed correlations among sacral root reconstruction by MRI-DTI, pain symptoms, and laparoscopic findings. DTI of sacral roots revealed a regular and homogeneous appearance in 17 patients (25.8%) and abnormalities in microstructure reconstruction, with fiber irregularities and disorganization and loss of the simple unidirectional course, in 44 patients (66.7%). At laparoscopy, ovarian endometriomas were found in 82.1% of the patients, and deeply infiltrating endometriosis (DIE) were found in 57.1%. Endometriosis was staged according to the revised American Society for Reproductive Medicine classification. Pathological DTI findings were significantly associated with the severity of dysmenorrhea and NCPP, pain duration, presence of tubo-ovarian and cul-de-sac adhesions, and DIE. CONCLUSION: The presence of pathological DTI findings of the sacral nerve roots correlates with the type of pain, adhesions, and DIE. At present, DTI can be useful for providing a better understanding of pain; however, DTI could become a useful tool in therapeutic planning for patients with endometriosis.

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Condition tags

dysmenorrheadyspareuniaendometriosis

MeSH descriptors

Diffusion Tensor Imaging Diffusion Tensor Imaging Endometriosis Spinal Nerve Roots Adult Adult Cross-Sectional Studies Cross-Sectional Studies Dysmenorrhea Dysmenorrhea Dysmenorrhea Dyspareunia Dyspareunia Dyspareunia Endometriosis Endometriosis Endometriosis Female Female Humans

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