Abstract
Background: Intestinal ultrasound (IUS) examination is a first-line non-invasive imaging procedure for patients with suspicion of bowel diseases. Aim: To assess the feasibility, reproducibility and diagnostic accuracy of a pocket-size ultrasound device (PUD) in identifying the presence of intestinal alterations in patients consecutively recruited to undergo IUS examination. Methods: 200 consecutive patients (57% female, 48.8 years) underwent both PUD (two independent investigators) and IUS examination on the same day. Nine ultrasonographic signs were systematically searched for. PUD inter-observer reproducibility was assessed by kappa statistic and ICC. The diagnostic accuracy of PUD as compared to IUS results was assessed by calculating sensitivity, specificity and corresponding positive and negative likelihood ratios. Results: PUD and IUS examinations were successful in 100% of the patients. PUD reproducibility was good/excellent at evidencing the presence (ICC 0.84) and length (ICC 0.85) of an intestinal tract with thickened wall and abdominal free fluid (ICC 0.87). The diagnostic accuracy of PUD, compared to traditional IUS, was good with regard to the presence of bowel wall thickening (sensitivity 92%, specificity 95%), the length of the thickened bowel (sensitivity 94%, specificity 95%) and the presence of free fluid (sensitivity 81%, specificity 99%). Conclusions: PUD is a feasible, reproducible and accurate first-line screening tool for the assessment of the gastro-intestinal tract.
| Original language | English |
|---|---|
| Pages (from-to) | 38-43 |
| Journal | Digestive and Liver Disease |
| Volume | 52 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 2020 |
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Keywords
- Echoscopy
- Gastro-intestinal ultrasound
- Pocket-size ultrasound device
- Reproducibility
ASJC Scopus subject areas
- Hepatology
- Gastroenterology
Cite this
Is pocket-size ultrasound a reliable tool for bowel investigation? A study on its feasibility, reproducibility and diagnostic accuracy. / Costantino, Andrea; Giunta, Mariangela; Casazza, Giovanni; Arona, Silvia; Colli, Agostino; Conte, Dario; Vecchi, Maurizio; Fraquelli, Mirella.
In: Digestive and Liver Disease, Vol. 52, No. 1, 01.01.2020, p. 38-43.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Is pocket-size ultrasound a reliable tool for bowel investigation? A study on its feasibility, reproducibility and diagnostic accuracy
AU - Costantino, Andrea
AU - Giunta, Mariangela
AU - Casazza, Giovanni
AU - Arona, Silvia
AU - Colli, Agostino
AU - Conte, Dario
AU - Vecchi, Maurizio
AU - Fraquelli, Mirella
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Background: Intestinal ultrasound (IUS) examination is a first-line non-invasive imaging procedure for patients with suspicion of bowel diseases. Aim: To assess the feasibility, reproducibility and diagnostic accuracy of a pocket-size ultrasound device (PUD) in identifying the presence of intestinal alterations in patients consecutively recruited to undergo IUS examination. Methods: 200 consecutive patients (57% female, 48.8 years) underwent both PUD (two independent investigators) and IUS examination on the same day. Nine ultrasonographic signs were systematically searched for. PUD inter-observer reproducibility was assessed by kappa statistic and ICC. The diagnostic accuracy of PUD as compared to IUS results was assessed by calculating sensitivity, specificity and corresponding positive and negative likelihood ratios. Results: PUD and IUS examinations were successful in 100% of the patients. PUD reproducibility was good/excellent at evidencing the presence (ICC 0.84) and length (ICC 0.85) of an intestinal tract with thickened wall and abdominal free fluid (ICC 0.87). The diagnostic accuracy of PUD, compared to traditional IUS, was good with regard to the presence of bowel wall thickening (sensitivity 92%, specificity 95%), the length of the thickened bowel (sensitivity 94%, specificity 95%) and the presence of free fluid (sensitivity 81%, specificity 99%). Conclusions: PUD is a feasible, reproducible and accurate first-line screening tool for the assessment of the gastro-intestinal tract.
AB - Background: Intestinal ultrasound (IUS) examination is a first-line non-invasive imaging procedure for patients with suspicion of bowel diseases. Aim: To assess the feasibility, reproducibility and diagnostic accuracy of a pocket-size ultrasound device (PUD) in identifying the presence of intestinal alterations in patients consecutively recruited to undergo IUS examination. Methods: 200 consecutive patients (57% female, 48.8 years) underwent both PUD (two independent investigators) and IUS examination on the same day. Nine ultrasonographic signs were systematically searched for. PUD inter-observer reproducibility was assessed by kappa statistic and ICC. The diagnostic accuracy of PUD as compared to IUS results was assessed by calculating sensitivity, specificity and corresponding positive and negative likelihood ratios. Results: PUD and IUS examinations were successful in 100% of the patients. PUD reproducibility was good/excellent at evidencing the presence (ICC 0.84) and length (ICC 0.85) of an intestinal tract with thickened wall and abdominal free fluid (ICC 0.87). The diagnostic accuracy of PUD, compared to traditional IUS, was good with regard to the presence of bowel wall thickening (sensitivity 92%, specificity 95%), the length of the thickened bowel (sensitivity 94%, specificity 95%) and the presence of free fluid (sensitivity 81%, specificity 99%). Conclusions: PUD is a feasible, reproducible and accurate first-line screening tool for the assessment of the gastro-intestinal tract.
KW - Echoscopy
KW - Gastro-intestinal ultrasound
KW - Pocket-size ultrasound device
KW - Reproducibility
UR - http://www.scopus.com/inward/record.url?scp=85070276748&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070276748&partnerID=8YFLogxK
U2 - 10.1016/j.dld.2019.07.008
DO - 10.1016/j.dld.2019.07.008
M3 - Article
AN - SCOPUS:85070276748
VL - 52
SP - 38
EP - 43
JO - Digestive and Liver Disease
JF - Digestive and Liver Disease
SN - 1590-8658
IS - 1
ER -