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Added value of using a CT coronal reformation to diagnose adnexal torsion

Title
Added value of using a CT coronal reformation to diagnose adnexal torsion
Authors
Jung S.I.Park H.S.Yim Y.Jeon H.J.Yu M.H.Kim Y.J.Jeong K.
Ewha Authors
정경아
SCOPUS Author ID
정경아scopus
Issue Date
2015
Journal Title
Korean Journal of Radiology
ISSN
1229-6929JCR Link
Citation
vol. 16, no. 4, pp. 835 - 845
Keywords
AdnexaCTTorsion
Publisher
Korean Radiological Society
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
Objective: To evaluate the increased value of using coronal reformation of a transverse computed tomography (CT) scan for detecting adnexal torsion. Materials and Methods: This study included 106 woman suspected of having adnexal torsion who underwent CT with coronal reformations and subsequent surgical exploration. Two readers independently recorded the CT findings, such as the thickening of a fallopian tube, twisting of the adnexal pedicle, eccentric smooth wall thickening of the torsed adnexal mass, eccentric septal thickening of the torsed adnexal mass, eccentric poor enhancement of the torsed adnexal mass, uterine deviation to the twisted side, ascites or infiltration of pelvic fat, and the overall impression of adnexal torsion with a transverse scan alone or combined with coronal reformation and a transverse scan. The areas under the receiver operating characteristic curves (AUCs), sensitivity, specificity, and positive predictive value were used to compare diagnostic performance. Results: Fifty-two patients were confirmed to have adnexal torsion. The addition of coronal reformations to the transverse scan improved AUCs for readers 1 and 2 from 0.74 and 0.75 to 0.92 and 0.87, respectively, for detecting adnexal torsion (p < 0.001 and p = 0.004, respectively). Sensitivity of CT for detecting twisting of the adnexal pedicle increased significantly for readers 1 and 2 from 0.27 and 0.29 with a transverse scan alone to 0.79 and 0.77 with a combined coronal reformation and a transverse scan, respectively (p < 0.001 and p < 0.001, respectively). Conclusion: Use of a coronal reformation with transverse CT images improves detection of adnexal torsion. © 2015 The Korean Society of Radiology.
DOI
10.3348/kjr.2015.16.4.835
Appears in Collections:
의과대학 > 의학과 > Journal papers
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