# Sigmoid volvulus: identifying patients requiring emergency surgery with the dark torsion knot sign

> Research article (European Radiology, 2019) · cited 20× · AI/ML

**Wikidata**: [openalex:W2942315514](https://www.wikidata.org/wiki/openalex:W2942315514)  
**Source**: https://4ort.xyz/entity/sigmoid-volvulus-identifying-patients-requiring-emergency-surgery-with-the-dark-torsion-knot-sign