To review the ability of conventional and advanced MRI to help identify various tissues in gynecologic diseases for the interpretation of MRI.
To establish comprehensive diagnostic strategy for tumors and tumor-like lesions in the female pelvis through tissue characterization.
MRI is a feasible modality for tissue characterization, and recently various functional MRI by means of advanced MR techniques can provide valuable information for the differential diagnosis of gynecologic diseases. In this exhibit, diagnostic strategy of gynecologic diseases through tissue characterization based on MRI is reviewed.
[Advanced MR techniques]
･1H-MRS provides metabolic information, which is useful for the differentiation of benign and malignant pathologies, and in making differential diagnosis by specific tissue characterization.
-Susceptibility-weighted MR sequences(SWS)
･SWS such as SWI(susceptibility-weighted imaging) and SWAN(T2...
Findings and procedure details
･Ovarian benign tumors:
･Ovarian tumor-like lesions:
Polycystic ovaries (PCO);Fibromatosis;Hyperthecosis
･Ovarian malignancies:Krukenberg tumor;Carcinoid
･Ovarian tumor mimicker:Subserosal leiomyoma
･Relatively acellular region of fibrous tissue w/ abundant collagen may show characteristic T2-low intensity.
･DWI-low due to T2-blackout, even w/ low ADC.
･Gradual, relatively weak CE on DCE-MRI.
･Low to moderate Cho peak on MRS.
･The ectopic endometrium in endometriosis responds to hormonal stimulation with cyclic hemorrhage that induce an inflammatory response and extensive fibrous reaction. Fibrous tissue shows T2-low intensity and...
MRI including advanced MR techniques is useful for the diagnosis of tumors and tumor-like lesions in the female pelvis through tissue characterization for the adequate therapeutic approach.
Personal information and conflict of interest
M. Takeuchi; Tokushima/JP - nothing to disclose K. Matsuzaki; Tokushima/JP - nothing to disclose M. Harada; Tokushima/JP - nothing to disclose