Effect of longer battery life on small bowel capsule endoscopy

Ou, George; Shahidi, Neal; Galorport, Cherry; Takach, Oliver; Lee, Terry; Enns, Robert

doi:10.3748/wjg.v21.i9.2677

Cited by 35 publications

(20 citation statements)

References 27 publications

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“…Fortunately, newer-generation capsules have longer battery life (>12 vs 8 hours with first-generation capsules), which may increase the duration of the study and completion rates. 123,124 Capsule retention has been reported in approximately 1.4% of CE procedures. 120,121,[125][126][127] Retrospective studies have reported retention rates of 0% to 1.6% in patients with suspected IBD, and of 5.2% to 13% in patients with known IBD.…”

Section: Contraindications Cautions and Consentmentioning

confidence: 99%

Clinical Practice Guidelines for the Use of Video Capsule Endoscopy

et al. 2017

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Section: Contraindications Cautions and Consentmentioning

confidence: 99%

Clinical Practice Guidelines for the Use of Video Capsule Endoscopy

et al. 2017

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“…The progress of battery technology and robust computational frame interpolation techniques can mitigate problems with the current CCE capsules. CCE needs to be small enough to be swallowable, and the battery needs to last more than 8 h [24] . The transmission of the image data occupies about 90% of the total Fig.…”

Section: Future Direction: Cce Video Frame Interpolationmentioning

confidence: 99%

Variational approach for capsule video frame interpolation

Mohammed¹,

Farup²,

Yayilgan³

et al. 2018

J Image Video Proc.

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Capsule video endoscopy, which uses a wireless camera to visualize the digestive tract, is emerging as an alternative to traditional colonoscopy. Colonoscopy is considered as the gold standard for visualizing the colon and takes 30 frames per second. Capsule images, on the other hand, are taken with low frame rate (average five frames per second), which makes it difficult to find pathology and results in eye fatigue for viewing. In this paper, we propose a variational algorithm to smooth the video temporally and create a visually pleasant video. The main objective of the paper is to increase the frame rate to be closer to that of the colonoscopy. We propose variational energy that takes into consideration both motion estimation and intermediate frame intensity interpolation using the surrounding frames. The proposed formulation incorporates both pixel intensity and texture feature in the optical flow objective function such that the interpolation at the intermediate frame is directly modeled. The main feature of this formulation is that error in motion estimation is incorporated in our model, so that only robust motion estimation are used in estimating the intensity of the intermediate frame. We derived Euler-Lagrange equations and showed an efficient numerical scheme that can be implemented on graphics hardware. Finally, a motion compensated frame rate doubling version of our method is implemented. We evaluate the quality of both 90 and 100% of the frames for medical diagnosis domain through objective image quality metrics. Our method improves state-of-the-art result for 90% frames while performing equivalent for the remaining cases with other existing methods. In the last section, we show application of frame interpolation to informative frame segment visualization and to reduce the power consumption.

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“…The main drawbacks of the oldgeneration capsules were their limited battery life, with up to 25% of them not reaching the colon during recording, a disadvantage that is almost eliminated with the development of capsules with a longer battery life, namely, EndoCapsule 10, MiroCam, Pillcam SB2-ex [20,21] and SB3, as well as the fear of capsule retention.…”

Section: Introductionmentioning

confidence: 99%