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Alhyari A, Görg C, Dietrich CF, Trenker C, Strauch L, Safai Zadeh E. ARFI elastography of the omentum: feasibility and diagnostic performance in differentiating benign from malignant omental masses. BMJ Open Gastroenterol 2022; 9:bmjgast-2022-000901. [PMID: 35523459 PMCID: PMC9083433 DOI: 10.1136/bmjgast-2022-000901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/18/2022] [Indexed: 12/02/2022] Open
Abstract
Objective To evaluate the feasibility and diagnostic performance of acoustic radiation force impulse (ARFI) elastography in different omental masses (OM). Design This was a retrospective analysis of 106 patients with OM defined as omental thickness ≥1 cm, who underwent abdominal B-mode ultrasound (US) and standardised ARFI examinations of the OM between September 2018 and June 2021 at our university hospital. A cytohistological confirmation was available in 91/106 (85.8%) of all OM, including all 65/65 (100%) malignant OM (mOM) and 26/41 (63.4%) of benign OM (bOM). In 15/41 (36.6%) of bOM; cross-sectional imaging and or US follow-up with a mean duration of 19.8±3.1 months was performed. To examine the mean ARFI velocities (MAV) for potential cut-off values between bOM and mOM a receiver operating characteristic analysis was implemented. Results The MAV in the mOM group (2.71±1.04 m/s) was significantly higher than that of bOM group (1.27±0.87 m/s) (p<0.001). Using 1.97 m/s as a cut-off yielded a sensitivity and specificity of 76.9% and 85.4%, respectively, in diagnosing mOM (area under the curve=0.851, 95% CI=0.774 to 0.928). Conclusion ARFI elastography is feasible in the omentum and may represent a good non-invasive additional tool in differentiating bOM from mOM.
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Affiliation(s)
- Amjad Alhyari
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany .,Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipp University of Marburg, Marburg, Germany, Marburg, Germany.,Interdisciplinary Centre of Internal Medicine, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany
| | - Christian Görg
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany.,Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipp University of Marburg, Marburg, Germany, Marburg, Germany.,Interdisciplinary Centre of Internal Medicine, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany
| | - Christoph Frank Dietrich
- Department of Internal Medicine, Kliniken Hirslanden Bern, Salem und Permanence, Bern, Switzerland
| | - Corrina Trenker
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany.,Interdisciplinary Centre of Internal Medicine, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany.,Haematology, Oncology and Immunology, Universitatsklinikum Giessen und Marburg - Standort Marburg, Marburg, Germany
| | - Lena Strauch
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany
| | - Ehsan Safai Zadeh
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany.,Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipp University of Marburg, Marburg, Germany, Marburg, Germany.,Interdisciplinary Centre of Internal Medicine, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany
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