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01-07-2021 | Magnetic Resonance Imaging

Comparison of laparoscopic ultrasound and liver-specific magnetic resonance imaging for staging colorectal liver metastases

Authors: Nadia Russolillo, Alessandro Borello, Serena Langella, Michele Casella, Roberto Lo Tesoriere, Alessandro Ferrero

Published in: Surgical Endoscopy | Issue 7/2021

Abstract

Background

Intraoperative liver ultrasound appears superior to liver-specific contrast-enhanced magnetic resonance imaging (MRI) to stage colorectal liver metastases (CRLMs). Most of the data come from studies on open surgery. Laparoscopic ultrasound (LUS) is technically demanding and its reliability is poor investigated. Aim of the study was to assess the accuracy of LUS staging for CRLMs compared to MRI.

Methods

All patients with CRLMs scheduled for laparoscopic liver resection (LLR) between 01/2010 and 06/2019 who underwent preoperative MRI were considered for the study. LUS and MRI performance was compared on a patient by patient basis. Reference standards were final pathology and 6 months follow-up results.

Results

Amongst 189 LLR for CRLMs, 146 met inclusion criteria. Overall, 391 CRLMs were preoperatively detected by MRI. 24 new nodules in 16 (10.9%) patients were found by LUS and resected. Median diameter of new nodules was 5.5 mm (2–10 mm) and 10 (41.6%) were located in the hepatic dome. Pathology confirmed 17 newly detected malignant nodules (median size 4 mm) in 11 (7.5%) patients. Relationships between intrahepatic vessels and tumours differed between LUS and MRI in 9 patients (6.1%). Intraoperative surgical strategy changed according LUS findings in 19 (13%) patients, requiring conversion to open approach in 3 (15.8%) of them. The sensitivity of LUS was superior to MRI (93.1% vs 85.6% whilst specificity was similar (98.6% MRI vs 96.5% LUS).

Conclusions

Laparoscopic liver ultrasound improves liver staging for CRLMs compared to liver-specific MRI.

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Title: Comparison of laparoscopic ultrasound and liver-specific magnetic resonance imaging for staging colorectal liver metastases
Authors: Nadia Russolillo
Alessandro Borello
Serena Langella
Michele Casella
Roberto Lo Tesoriere
Alessandro Ferrero
Publication date: 01-07-2021
Publisher: Springer US
Keywords: Magnetic Resonance Imaging
Ultrasound
Magnetic Resonance Imaging
Metastasis
Liver Resection
Liver Resection
Ultrasound
Published in: Surgical Endoscopy / Issue 7/2021
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-020-07817-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Comparison of laparoscopic ultrasound and liver-specific magnetic resonance imaging for staging colorectal liver metastases

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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