The Current Main Types of Capsule Endoscopy

Li, Zhao‐Shen; Carter, Dan; Eliakim, Rami; Zou, Wenbin; Wu, Hao; Liao, Zhuan; Gong, Zhaotao; Wang, Jinshan; Chung, Joo Won; Song, Si Young; Xiao, Guohua; Duan, Xiaodong; Wang, Xinhong

doi:10.1007/978-94-017-9229-5_2

Cited by 25 publications

(17 citation statements)

References 107 publications

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“…The typical frame rate of these devices is around 2 to 6 frames per second (fps), although many new devices, such as the PillCam COLON2, operate at 35 fps due to the use of video compression and adaptive frame rate techniques [24]- [27]. The frame size itself varies from 256 × 256 pixels up to 1,920 × 1,080 pixels comprised of 192 kB to 3,000 kB with 8 bit RGB color depth depending on the imaging camera used [25], [28]- [30].…”

Section: Conformal Antennas Radiating At 24 Ghz and 915 Mhz And Demomentioning

confidence: 99%

In Vivo Characterization of a Wireless Telemetry Module for a Capsule Endoscopy System Utilizing a Conformal Antenna

Faerber

Cummins

Pavuluri

et al. 2018

IEEE Trans. Biomed. Circuits Syst.

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This paper describes the design, fabrication, packaging, and performance characterization of a conformal helix antenna created on the outside of a capsule endoscope designed to operate at a carrier frequency of 433 MHz within human tissue. Wireless data transfer was established between the integrated capsule system and an external receiver. The telemetry system was tested within a tissue phantom and in vivo porcine models. Two different types of transmission modes were tested. The first mode, replicating normal operating conditions, used data packets at a steady power level of 0 dBm, while the capsule was being withdrawn at a steady rate from the small intestine. The second mode, replicating the worst-case clinical scenario of capsule retention within the small bowel, sent data with stepwise increasing power levels of -10, 0, 6, and 10 dBm, with the capsule fixed in position. The temperature of the tissue surrounding the external antenna was monitored at all times using thermistors embedded within the capsule shell to observe potential safety issues. The recorded data showed, for both modes of operation, a low error transmission of 10 packet error rate and 10 bit error rate and no temperature increase of the tissue according to IEEE standards.

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Section: Conformal Antennas Radiating At 24 Ghz and 915 Mhz And Demomentioning

confidence: 99%

In Vivo Characterization of a Wireless Telemetry Module for a Capsule Endoscopy System Utilizing a Conformal Antenna

Faerber

Cummins

Pavuluri

et al. 2018

IEEE Trans. Biomed. Circuits Syst.

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“…Hasta el momento se dispone en el mercado de 6 modelos de VCE desarrolladas por igual número de empresas: Pillcam, Endocapsule, Mirocam, OMOM, Navicam y Capsocam (24) . La original y más usada, llamada Pillcam SB, fue desarrollada por Given Imaging (Israel).…”

Section: Y Figura 5)unclassified

Uso de nuevas técnicas y procedimientos endoscópicos en el diagnóstico y seguimiento de la enfermedad celíaca.

Olaso

Olano

González

2018

Rev. urug. med. interna

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“…The mode of data transmission is either via ultra-high frequency band radio telemetry or human body communications. The latter technology [77] uses the capsule itself to generate an electrical field that uses human tissue as the conductor for data transmission. The first capsule model for the small intestine was approved by the US's Food and Drug Administration (FDA) in 2001.…”

Section: Wireless Video Capsular Endoscopesmentioning

confidence: 99%

“…The main advantage of R-VCE is that patients do not need to wear an image recorder after swallowing the capsule, and they only need to be aware of the time of expelling the capsule from the body and collecting it. Currently [77], all R-VCE capsules require the excavation from the fecal masses, cleaning and the use of specialized communication module to extract the recorded data from the capsule. Nevertheless, compared to T-VCEs, screening using R-VCE devices can be performed virtually at any place (at home, at remote sites and on moving facilities, like ships and oil platforms), because only the capsule and simple and cheap disposable support equipment is required for the procedure.…”

Section: Wireless Video Capsular Endoscopesmentioning

confidence: 99%

Lire

Lux

Riegler

Halvorsen

et al. 2016

Proceedings of the 7th International Conference on Multimedia Systems

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Advanced and automated medical systems have been in the research focus for a long time. Together with the rapid development of sensing devices, the modern information analysis methods allow the new wave of computer-assisted systems to improve health care, quality of life, and patient survival rate. Together with the traditional computer vision and medical imaging, core competencies of the multimedia community such as integration and analysis of data from several sources, real-time processing and the assessment of usefulness for end-users play an essential role for the successful improvement of health care systems addressing challenges and open problems in the field of medicine. Our work explores different fields in multimedia research, starting from collection and annotation of multimedia data through automatic analysis of content and efficient processing of workloads to visualization and results representation. We have researched and developed a holistic medical multimedia system addressing a use case with an important medical and societal impact. We target lesions and findings detection and localization in the gastrointestinal (GI) tract of the human body in order to be able to support medical experts in their daily routine work. The early and precise detection of abnormalities in the GI tract greatly increases the chance of successful treatment if the initial observation of disease indicators occurs before the patient notices any symptoms, it is a non-trivial task that can be, however, efficiently automated. We investigated the GI tract visual analysis from a multimedia research point of view via several steps of research and development. First, we looked into the problem of medical data acquisition. We collected, annotated, and published several datasets and data annotation tools as open source. Then, we designed and developed a set of lesion and findings detection and localization approaches based on hand-crafted methods as well as on global-, local-and deepfeature-based methods, which serves as the algorithmic basis of our system. Next, we created a holistic medical multimedia system called DeepEIR. We researched and developed different subsystems for our DeepEIR system, namely (i) the data exploration and annotation subsystem, which makes it possible to collect and annotate data and transfer knowledge from medical experts into our system; (ii) the detection and localization subsystem, which perform medical data analysis in order to detect and localize lesions and findings; and (iii) the visualization and results representation subsystem that provides the information to medical personnel. Furthermore, the focus of the DeepEIR system lies on the accurate and time-efficient processing of multimedia data. We investigated, therefore, parallel and distributed processing, GPU-based acceleration and different classification and segmentation approaches that are evaluated and compared with state-of-the-art methods, algorithms, and systems. We demonstrated that the DeepEIR system could outperform state-of-the-art app...

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The Current Main Types of Capsule Endoscopy

Cited by 25 publications

References 107 publications

In Vivo Characterization of a Wireless Telemetry Module for a Capsule Endoscopy System Utilizing a Conformal Antenna

In Vivo Characterization of a Wireless Telemetry Module for a Capsule Endoscopy System Utilizing a Conformal Antenna

Uso de nuevas técnicas y procedimientos endoscópicos en el diagnóstico y seguimiento de la enfermedad celíaca.

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