The New Generation of Mirocam Express View is Highly Accurate and Effective to Reduce the Capsule Endoscopy Reading Time

S Piccirelli; A Mussetto; A Bellumat; R Cannizzaro; M Pennazio; A Pezzoli; A Bizzotto; N Fusetti; F Valiante; C Spada

doi:10.1055/s-0041-1724601

Endoscopy, Table of Contents

Endoscopy 2021; 53(S 01): S130
DOI: 10.1055/s-0041-1724601

Abstracts | ESGE Days

ESGE Days 2021 Digital poster exhibition

The New Generation of Mirocam Express View is Highly Accurate and Effective to Reduce the Capsule Endoscopy Reading Time

S Piccirelli

¹Istituto Ospedaliero Fondazione Poliambulanza, Endoscopy Unit, Brescia, Italy

²Policlinico Universitario Agostino Gemelli, Department of Gastroenterology, Rome, Italy

,

A Mussetto

³S. Maria delle Croci Hospital, Gastroenterology Unit, Ravenna, Italy

,

A Bellumat

⁴S Maria del Prato Hospital, Department of Gastroenterology and Digestive Endoscopy, Belluno, Italy

,

R Cannizzaro

⁵Centro di Riferimento Oncologico (CRO) IRCCS, Oncological Gastroenterology Division, Aviano, Italy

,

M Pennazio

⁶City of Health and Science University Hospital, University Division of Gastroenterology, Turin, Italy

,

A Pezzoli

⁷Sant’Anna University Hospital, Department of Gastroenterology and Endoscopy Unit, Ferrara, Italy

,

A Bizzotto

¹Istituto Ospedaliero Fondazione Poliambulanza, Endoscopy Unit, Brescia, Italy

,

N Fusetti

⁷Sant’Anna University Hospital, Department of Gastroenterology and Endoscopy Unit, Ferrara, Italy

,

F Valiante

⁴S Maria del Prato Hospital, Department of Gastroenterology and Digestive Endoscopy, Belluno, Italy

,

C Spada

¹Istituto Ospedaliero Fondazione Poliambulanza, Endoscopy Unit, Brescia, Italy

²Policlinico Universitario Agostino Gemelli, Department of Gastroenterology, Rome, Italy

› Author Affiliations

Abstract

Full Text

Aims CE reading is time-consuming and still represents a main limitation in CE. A new generation Express View(EV) algorithm has been disegned by Mirocam to shorten CE videos. Primary aim was to evaluate EV diagnostic accuracy in detection of small bowel lesions. Secondary objective was to compare median reading time in EV mode vs Standard Reading(SR)

Methods 126 Patients with suspected small bowel bleeding and/or suspected neoplasia were prospectively enrolled in six Centers and underwent small-bowel CE (MC 1200,Intromedic,Republic of Korea). CE evaluation was initially performed in standard mode. Subsequently, EV reading was performed by a second independent blinded reader. For each lesion, location, nature, and relevance according to the Saurin classification were collected. SR was considered as the gold standard. In case of discrepancies between SR and EV reading, a Consensus of experts (considered as the new gold standard) reviewed the video and re-classified the findings. Reading time (gastric+small bowel) was also measured.

Results 115 Patients were included in the per-patient analysis (11 patients were excluded: n= 4 incomplete examination;n = 7 gastric or colonic findings). SR and EV reading were concordant in 85.2 % of patients (n = 62 SR+EV+;n = 36 SR-EV-) and discordant in 14.8 % of patients (n = 10 SR+EV-;n = 7 SR-EV+). EV accuracy compared to SR is shown in the table below. At Consensus review, EV was reclassified to properly detect the lesion responsable for the final diagnosis in 15 out of 17 discordant reports, being the disagreement due to a reader misinterpretation. In the remaining 2 patients, EV software missed relevant lesions(1 ileal hemangioma and 1 ileal erosion). EV Accuracy after Consensus in shown in the table below. Median reading time at SR and EV was 71 minutes(range 26-340) and 13 minutes(range 3-85), respectively (p<0.001). Completion rate was 86.5 %. No case of retention occurred.

Tab.1
	Before Consensus	After Consensus
EV sensitivity	86 %	97 %
EV specificity	84 %	100 %
EV PPV	90 %	100 %
EV NPV	78 %	95 %

Conclusions Express View showed high diagnostic accuracy and significantly reduces CE reading time.

Citation Piccirelli S, Mussetto A, Bellumat A et al. eP102 THE NEW GENERATION OF MIROCAM EXPRESS VIEW IS HIGHLY ACCURATE AND EFFECTIVE TO REDUCE THE CAPSULE ENDOSCOPY READING TIME. Endoscopy 2021; 53: S130.