Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

903
Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
903
Interaction of EM Radiation with Matter: Spectroscopy01:12

Interaction of EM Radiation with Matter: Spectroscopy

3.4K
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
3.4K
What are Estimates?01:06

What are Estimates?

8.9K
It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates. 
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
8.9K
Location and Orientation of the Heart01:13

Location and Orientation of the Heart

10.7K
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
10.7K
Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

104.7K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
104.7K
Dual Nature of Electromagnetic (EM) Radiation01:10

Dual Nature of Electromagnetic (EM) Radiation

4.0K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
4.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Heat transfer optimization in MHD Casson ternary hybrid nanofluid flow using CPC fractional modeling.

Discover nano·2026
Same author

Computational analysis of radiative heat transfer and free convective flow over a vertical wavy surface with Lorentz forces.

Scientific reports·2026
Same author

Fatal Pulmonary Mucormycosis in a Renal Transplant Recipient: A Missed Opportunistic Infection.

Cureus·2026
Same author

Use of artificial neural network optimization for MHD and non-Newtonian peritoneal Jeffery nanofluid dynamics on female reproductive health.

Journal of biological engineering·2026
Same author

Numerical investigation of MHD flow and heat transfer of hybrid nanofluid over a Darcy-Forchheimer shrinking sheet using the Reiner-Philippoff model with significant viscous dissipation and Joule heating effects.

Discover nano·2026
Same author

MHD heat and mass transfer of a ternary hybrid nanofluid over a rotating sphere.

Discover nano·2026

Related Experiment Video

Updated: Feb 12, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
08:25

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

3.0K

Precision of EM Simulation Based Wireless Location Estimation in Multi-Sensor Capsule Endoscopy.

Umair Khan1,2, Yunxing Ye3, Ain-Ul Aisha4

  • 1Worcester Polytechnic InstituteWorcesterMA01609USA.

IEEE Journal of Translational Engineering in Health and Medicine
|April 14, 2018
PubMed
Summary
This summary is machine-generated.

This study determines localization limits for radio frequency (RF) endoscopy pills in the gastrointestinal (GI) tract. External receiver antennas significantly improve location precision more than multiple pills.

Keywords:
3DEndoscopy pillTOA location limitsboundssignal probabilitytwo-way location

More Related Videos

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

1.1K
Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.2K

Related Experiment Videos

Last Updated: Feb 12, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
08:25

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

3.0K
In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

1.1K
Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.2K

Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Electromagnetics

Background:

  • Accurate localization of ingestible electronic devices within the gastrointestinal (GI) tract is crucial for advanced diagnostics and targeted therapies.
  • Current localization methods face challenges due to the complex, dynamic environment of the human digestive system.
  • Radio frequency (RF) endoscopy pills offer a promising, minimally invasive approach for internal monitoring.

Purpose of the Study:

  • To compute and analyze the two-way localization limits for an RF endoscopy pill navigating the human GI tract.
  • To investigate factors influencing localization precision, including organ properties, sensor array configurations, and signal transmission variations.
  • To assess the impact of external receiver antennas versus the number of cooperating pills on localization accuracy.

Main Methods:

  • Utilized finite-difference time-domain (FDTD) and finite element method (FEM) simulations for position assessment.
  • Employed time of arrival (TOA) estimation based on a 3-D human body model and lognormal propagation models.
  • Calculated localization bounds in the stomach, small intestine, and large intestine, considering various influencing parameters.

Main Results:

  • Localization precision is more significantly impacted by the number of external receiver antennas than by the quantity of cooperating pills within the GI tract.
  • Organ properties, peripheral sensor array arrangements, and random variations in transmit power affect localization accuracy.
  • The large intestine exhibits the highest sensitivity to transmitter power probability distribution variations.

Conclusions:

  • The number of external receiver antennas is a critical factor for enhancing RF endoscopy pill localization accuracy.
  • System design should prioritize optimizing the external sensor array configuration for improved diagnostic capabilities.
  • Understanding the influence of GI tract environment and signal variability is key to refining localization algorithms.