Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis

The diagnosis of Crohn’s Disease (CD) is based on a combination of clinical symptoms, laboratory tests, endoscopy, and imaging data. In Small Intestine Contrast Ultrasonography (SICUS), the ingestion of a macrogol solution as an oral contrast medium may optimize image quality. We performed a meta-an...

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Main Authors: Giuseppe Losurdo, Margherita De Bellis, Raffaella Rima, Chiara Maria Palmisano, Paola Dell’Aquila, Andrea Iannone, Enzo Ierardi, Alfredo Di Leo, Mariabeatrice Principi
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/12/24/7714
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author Giuseppe Losurdo
Margherita De Bellis
Raffaella Rima
Chiara Maria Palmisano
Paola Dell’Aquila
Andrea Iannone
Enzo Ierardi
Alfredo Di Leo
Mariabeatrice Principi
author_facet Giuseppe Losurdo
Margherita De Bellis
Raffaella Rima
Chiara Maria Palmisano
Paola Dell’Aquila
Andrea Iannone
Enzo Ierardi
Alfredo Di Leo
Mariabeatrice Principi
author_sort Giuseppe Losurdo
collection DOAJ
description The diagnosis of Crohn’s Disease (CD) is based on a combination of clinical symptoms, laboratory tests, endoscopy, and imaging data. In Small Intestine Contrast Ultrasonography (SICUS), the ingestion of a macrogol solution as an oral contrast medium may optimize image quality. We performed a meta-analysis to evaluate the diagnostic performance of SICUS for CD. A literature search was performed in August 2023. We selected only studies where SICUS was compared to a technique that allows the assessment of the whole gastrointestinal tract, such as an MRE, a CT scan, or a surgical evaluation. We estimated pooled weighted sensitivity, specificity, and likelihood ratio for positive and negative tests (PLR/NLR) of SICUS. Summary receiver operating characteristic curves (SROC) were drawn, and pooled areas under the curve (AUC) were calculated. Five studies with 325 CD patients were included. SICUS showed a pooled sensitivity for the diagnosis of 95% (95% confidence interval CI 89–99%), a specificity = 77% (95% CI 60–90%), and the AUC was 0.94. SICUS demonstrated a pooled sensitivity for strictures of 78% (95% CI 63–88%) and a specificity = 96% (95% CI 85–99%), with AUC = 0.93. For abscesses, SICUS demonstrated a pooled sensitivity of 100% (95% CI 59–100%) and a specificity of 90% (95% CI 74–98%). Fistulae were detected with a pooled sensitivity of 77% (95% CI 46–95%) and a specificity of 92% (95% CI 75–99%). SICUS demonstrated excellent diagnostic performance compared to the gold standard despite some clinical scenarios (stenosis/fistulae) showing suboptimal diagnostic effectiveness.
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spelling doaj.art-18d89b67a15e4db08105bb48a2cab53d2023-12-22T14:17:31ZengMDPI AGJournal of Clinical Medicine2077-03832023-12-011224771410.3390/jcm12247714Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-AnalysisGiuseppe Losurdo0Margherita De Bellis1Raffaella Rima2Chiara Maria Palmisano3Paola Dell’Aquila4Andrea Iannone5Enzo Ierardi6Alfredo Di Leo7Mariabeatrice Principi8Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalyInternal Medicine Unit “C. Frugoni”, Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Piazza Giulio Cesare 11, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalySection of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, ItalyThe diagnosis of Crohn’s Disease (CD) is based on a combination of clinical symptoms, laboratory tests, endoscopy, and imaging data. In Small Intestine Contrast Ultrasonography (SICUS), the ingestion of a macrogol solution as an oral contrast medium may optimize image quality. We performed a meta-analysis to evaluate the diagnostic performance of SICUS for CD. A literature search was performed in August 2023. We selected only studies where SICUS was compared to a technique that allows the assessment of the whole gastrointestinal tract, such as an MRE, a CT scan, or a surgical evaluation. We estimated pooled weighted sensitivity, specificity, and likelihood ratio for positive and negative tests (PLR/NLR) of SICUS. Summary receiver operating characteristic curves (SROC) were drawn, and pooled areas under the curve (AUC) were calculated. Five studies with 325 CD patients were included. SICUS showed a pooled sensitivity for the diagnosis of 95% (95% confidence interval CI 89–99%), a specificity = 77% (95% CI 60–90%), and the AUC was 0.94. SICUS demonstrated a pooled sensitivity for strictures of 78% (95% CI 63–88%) and a specificity = 96% (95% CI 85–99%), with AUC = 0.93. For abscesses, SICUS demonstrated a pooled sensitivity of 100% (95% CI 59–100%) and a specificity of 90% (95% CI 74–98%). Fistulae were detected with a pooled sensitivity of 77% (95% CI 46–95%) and a specificity of 92% (95% CI 75–99%). SICUS demonstrated excellent diagnostic performance compared to the gold standard despite some clinical scenarios (stenosis/fistulae) showing suboptimal diagnostic effectiveness.https://www.mdpi.com/2077-0383/12/24/7714Crohn’s diseasediagnosisultrasoundmagnetic resonance enterographyoral contrastSICUS
spellingShingle Giuseppe Losurdo
Margherita De Bellis
Raffaella Rima
Chiara Maria Palmisano
Paola Dell’Aquila
Andrea Iannone
Enzo Ierardi
Alfredo Di Leo
Mariabeatrice Principi
Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
Journal of Clinical Medicine
Crohn’s disease
diagnosis
ultrasound
magnetic resonance enterography
oral contrast
SICUS
title Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
title_full Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
title_fullStr Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
title_full_unstemmed Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
title_short Small Intestinal Contrast Ultrasonography (SICUS) in Crohn’s Disease: Systematic Review and Meta-Analysis
title_sort small intestinal contrast ultrasonography sicus in crohn s disease systematic review and meta analysis
topic Crohn’s disease
diagnosis
ultrasound
magnetic resonance enterography
oral contrast
SICUS
url https://www.mdpi.com/2077-0383/12/24/7714
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