ArticleEmergency radiology2025
Rapid abdominal MRI for appendicitis for evaluation of ovarian torsion in children.
Article in Emergency radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Response to the letter to the editor: rapid abdominal MRI for appendicitis for evaluation of ovarian torsion in children.Emergency radiology · 2025Article
- Letter to the Editor: Rapid abdominal MRI for appendicitis for evaluation of ovarian torsion in children.Emergency radiology · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeDiagnosing adnexal torsion is challenging due to non-specific presentation and ultrasound findings. MRI may provide alternative assessment of adnexal torsion. We evaluated an MRI appendicitis protocol for torsion identification.
methodsRetrospective chart and image review was performed for girls with appendicitis MRI exams from 2013 to 2019. Ovarian volumes, stromal T2 signal, and apparent diffusion coefficient (ADC) ratios were tabulated. Ovarian and paratubal cysts' size and location were recorded as well as presence or absence of torsion. Statistical analysis was performed.
resultsSix hundred-fifty cases were included, eight with torsion. Higher ovarian volumes and volume ratios were found with torsion (p < 0.0001 and p < 0.0001, respectively). Ovarian volume ratio less than 4:1 had 99.7% negative predictive value (NPV). Ovarian volume less than 20 mL had 99.8% NPV. Five of six cases with 7 cm or larger adnexal cysts were torsed. T2 signal and ADC ratios overlapped between torsed and untorsed groups. No torsed adnexa appeared normal on MRI.
conclusionTorsed cases tended to have larger ovaries and higher volume ratios. Adnexal cysts greater than 7 cm diameter were likely to be torsed. No torsion cases had normal adnexae on MRI. Normal appearing adnexae on MRI are very unlikely to be torsed.
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