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  • Title: Ultrasonographic scoring system for the diagnosis of adnexal torsion.
    Author: Chen Y, Liu M, Zhang M, Yang M, Weng Z, Wu Q, He S.
    Journal: J Clin Ultrasound; 2022 May; 50(4):525-531. PubMed ID: 35244941.
    Abstract:
    PURPOSE: To establish the utility of an ultrasonographic scoring system for the diagnosis of adnexal torsion. METHODS: We retrospectively analyzing 358 adnexal torsion cases. Using Pearson's χ2 test we determined whether ultrasonographic signs were significantly associated with adnexal torsion. Receiver operating characteristic curves were used to evaluate the diagnostic efficacy of the system. Ultimately by using binary logistic regression we established a precise and convenient scoring system. RESULTS: The torsion score was based on five criteria that were identified to be independently associated with adnexal torsion: (1) abnormal position of the index adnexa (odds ratio [OR], 2.311); (2) presence of a mass or cyst (OR, 3.495); (3) unilateral ovarian enlargement (OR, 3.051); (4) vascular pedicle twisting (OR, 2.105); and (5) peripheral hypervascularity of the corpus luteum with ovarian edema(encapsulating cyst sign) (OR, 4.164).patients with torsion who scored 0, have a predicted diagnosis rate of 20.9%; patients whose scores were 1,2 have a predicted probability of 41.8% and 66.15%, respectively. For patients with torsion scores of 3, 4, and 5, predicted diagnosis rates were 84.16%, 93.52%, and 98.27%, respectively. CONCLUSION: The ultrasonographic scoring system is feasible and precisely diagnoses adnexal torsion using ultrasound.
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