U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 26 - 50 of 128

A Study of Capsule Endoscopy Orientation Estimation Using Received Signal Strength

December 20, 2018
Author(s)
Kamran Sayrafian, Katjana Krhac, Mehdi Alasti, Kamya Yazdandoost, Dina Simunic
Comprehensive study of wireless communication for ingestible electronics is a very challenging task. To initiate the study on wireless capsule endoscopy, an innovative immersive platform containing an enhanced 3D human body model has been developed. This

Impact of Measurement Points Distribution on the Parameters of UWB Implant Channel Model

December 20, 2018
Author(s)
Kamran Sayrafian, Sofia Perez-Simbor, Katjana Krhac, Concepcion GarciaPardo, Dina Simunic, Narcis Cardona
Sophisticated medical implants that allow vital information delivery to/from the human body are opening the door to novel approaches in diagnosis and/or therapy of various health related issues. Ultra-Wide Band (UWB) technology is gaining the attention of

Securing Electronic Health Records on Mobile Devices

July 27, 2018
Author(s)
Gavin W. O'Brien, Nate V. Lesser, Brett Pleasant, Sue Wang, Kangmin Zheng, Colin Bowers, Kyle Kamke
Health care providers increasingly use mobile devices to receive, store, process, and transmit patient clinical information. According to our own risk analysis, discussed here, and in the experience of many health care providers, mobile devices can present

Application of Link Adaptation in Body Area Networks

February 15, 2018
Author(s)
Kamran Sayrafian, Martina Barbi, Mehdi Alasti
A Body Area Network (BAN) is a wireless protocol for connectivity of wearable and implantable sensors located inside, on the surface or near the human body. Medical applications requirements impose stringent constraints on the reliability, and quality of

An HL7 v2 Platform for Standards Development and Testing

July 16, 2017
Author(s)
Sandra I. Martinez, Robert D. Snelick
Development of healthcare data exchange standards has long been problematic, plagued with ambiguous and inconsistent requirement specifications. This situation leads to potential misinterpretation by implementers, thus limiting the effectiveness of the

Examining the Copy and Paste Function in the Use of Electronic Health Records

January 19, 2017
Author(s)
Svetlana Z. Lowry, Mala Ramaiah, Sandra S. Prettyman, Debora Simmons, David Brick, Ellen Deutsch, Lorraine B. Possanza, Ollie B. Gray, Betty A. Levine, Kinsey Gimbel, Kyle Andrews
The National Institute of Standards and Technology (NIST) in collaboration with ECRI conducted a study titled “Examining the Copy and Paste Function in the Use of Electronic Health Records” which was intended to help fill the gap in understanding the

Using RTS/CTS to Enhance the Performance of IEEE 802.15.6 CSMA/CA

December 22, 2016
Author(s)
Kamran Sayrafian, Martina Barbi, Mehdi Alasti
IEEE 802.15.6 is a radio interface standard for a wireless connectivity of wearable and implantable sensors and actuators located inside or in close proximity to the human body i.e. Body Area Network (BAN). Medical applications requirements impose

Maximizing Output Power of a CFPG Micro Energy-Harvester for Wearable Medical Sensors

October 31, 2016
Author(s)
Mehdi Dadfarnia, Kamran Sayrafian, Paul Mitcheson, John Baras
Energy Harvesting refers to the process of capturing and storing energy from the ambient environment. Kinetic energy harvested from the human body motion seems to be one of the most convenient and attractive solutions for wearable wireless sensors in

An Energy-Efficient Target Tracking Strategy for Mobile Sensor Networks

March 15, 2016
Author(s)
Kamran Sayrafian, Hamid Mahboubi, Walid Masoudimansour, Amir G. Aghdam
In this paper, an energy-efficient strategy is proposed for tracking a moving target in an environment with obstacles, using a network of mobile sensors. Typically, the most dominant sources of energy consumption in a mobile sensor network are sensing

A Regret Matching Strategy Framework for Inter-BAN Interference Mitigation

February 4, 2016
Author(s)
Vladimir Marbukh, Kamran Sayrafian, Martina Barbi, Mehdi Alasti
A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensors located inside or in close proximity to the human body. Medical and some other applications impose stringent constraints on battery powered BAN

Kinetic-Based Micro Energy-Harvesting for Wearable Sensors

January 28, 2016
Author(s)
Kamran Sayrafian, Dora Budic, Dina Simunic
Wearable sensors are considered to be a key component of cognitive infocommunications systems. These sensors, which are basically enabler of inter-cognitive communication, will provide physical interfaces between humans and future information and

Toward Autonomous Mobile Sensor Networks Technology

January 26, 2016
Author(s)
Kamran Sayrafian, Hamid Mahboubi, Amir G. Aghdam
Mobile sensor networking technology has attracted considerable attention in various research communities in recent years due to their widespread applications in civilian and military environments. One objective when using mobile sensors is to obtain

Novel Cyber Physical System for 3D Imaging of the Small Intestine in Vivo

December 11, 2015
Author(s)
Kamran Sayrafian, Kaveh Pahlavan, Yishuang Geng, David Cave, GUANQUN BAO, LIANG MI, EMMANUEL AGU, ANDREW KARELLAS, VAHID TAROKH
Small intestine is the longest organ in the gastrointestinal tract where much of the digestion and the food absorption take place. Wireless video capsule endoscope (VCE) is the first device taking 2-D pictures from the lesions and the abnormalities in the

Electronic Health Record Design Considerations in Responding to Incidences of Highly Infectious Diseases: Clinical Workflows and Exception Handling

December 10, 2015
Author(s)
Svetlana Z. Lowry, Mala Ramaiah, Emily S. Patterson, Latkany A. Paul, Debora Simmons, David Brick, Michael C. Gibbons
Adoption of Electronic Health Record systems in all care settings has become widespread. EHRs can support and revolutionize the way that public health is protected in the event of an outbreak of a highly infectious disease. In particular, EHRs can support
Displaying 26 - 50 of 128