A model of deformable rings for interpretation of wireless capsule endoscopic videos

Piotr M. Szczypiński, Ram D. Sriram, Sreeram Parupudi, D. Nageshwar Reddy

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Wireless Capsule Endoscopy (WCE) provides a means to obtain a detailed video of the small intestine. A single session with WCE may produce nearly 8 h of video. Its interpretation is tedious task, which requires considerable expertise and is very stressful. The Model of Deformable Rings (MDR) was developed to preprocess WCE video and aid clinicians with its interpretation. The MDR uses a simplified model of a capsule's motion to flexibly match (register) consecutive video frames. Essentially, it computes motion-descriptive characteristics and produces a two-dimensional representation of the gastrointestinal (GI) tract's internal surface - a map. The motion-descriptive characteristics are used to indicate video fragments which exhibit segmentary contractions, peristalsis, refraction phases and areas of capsule retention. Within maps, certain characteristics that indicate areas of bleeding, ulceration and obscuring froth could be recognized. Therefore, the maps allow quick identification of such abnormal areas. The experimental results demonstrate that the number of discovered pathologies and gastrointestinal landmarks increases with the MDR technique.

Original languageEnglish (US)
Pages (from-to)312-324
Number of pages13
JournalMedical Image Analysis
Volume13
Issue number2
DOIs
StatePublished - Apr 2009
Externally publishedYes

Fingerprint

Capsule Endoscopy
Capsules
Endoscopy
Peristalsis
Small Intestine
Gastrointestinal Tract
Pathology
Refraction
Hemorrhage

Keywords

  • Deformable models
  • Gastrointestinal system
  • Model of deformable rings
  • Video analysis
  • Wireless capsule endoscope

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Radiology Nuclear Medicine and imaging
  • Health Informatics
  • Radiological and Ultrasound Technology

Cite this

A model of deformable rings for interpretation of wireless capsule endoscopic videos. / Szczypiński, Piotr M.; Sriram, Ram D.; Parupudi, Sreeram; Reddy, D. Nageshwar.

In: Medical Image Analysis, Vol. 13, No. 2, 04.2009, p. 312-324.

Research output: Contribution to journalArticle

Szczypiński, Piotr M. ; Sriram, Ram D. ; Parupudi, Sreeram ; Reddy, D. Nageshwar. / A model of deformable rings for interpretation of wireless capsule endoscopic videos. In: Medical Image Analysis. 2009 ; Vol. 13, No. 2. pp. 312-324.
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