Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter

Steven Jacques, Stephen T. Flock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This paper presents initial studies on a prototype catheter device suitable for the biopsy channel of an endoscope. A pair of optical fibers, one a source and one a collector, were adjoined with epoxy to create a single catheter tip. Such close proximity of two fibers is a special case of the generic R(r,t) measurement, where the fiber separation (r) approaches zero. The influence of an air/tissue surface boundary on the time-resolved collection of photons backscattered by a turbid media is presented. The catheter was either (1) placed on the surface of an aqueous turbid solution, or (2) imbedded deep within the volume and distant from the surface or any boundaries. The time course of photon collection was found to be strongly influenced by the surface boundary. Such boundary effects are pertinent to the design of time-resolved catheters which require close spacing of the source and collector fibers.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsBritton Chance
PublisherPubl by Int Soc for Optical Engineering
Pages12-20
Number of pages9
Volume1431
StatePublished - 1991
Externally publishedYes
EventProceedings of Time-Resolved Spectroscopy and Imaging of Tissues - Los Angeles, CA, USA
Duration: Jan 23 1991Jan 24 1991

Other

OtherProceedings of Time-Resolved Spectroscopy and Imaging of Tissues
CityLos Angeles, CA, USA
Period1/23/911/24/91

Fingerprint

Catheters
prototypes
reflectance
accumulators
fibers
Fibers
Photons
endoscopes
Endoscopy
Biopsy
photons
proximity
Optical fibers
optical fibers
spacing
Tissue
aqueous solutions
air
Air

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Jacques, S., & Flock, S. T. (1991). Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter. In B. Chance (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1431, pp. 12-20). Publ by Int Soc for Optical Engineering.

Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter. / Jacques, Steven; Flock, Stephen T.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Britton Chance. Vol. 1431 Publ by Int Soc for Optical Engineering, 1991. p. 12-20.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jacques, S & Flock, ST 1991, Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter. in B Chance (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1431, Publ by Int Soc for Optical Engineering, pp. 12-20, Proceedings of Time-Resolved Spectroscopy and Imaging of Tissues, Los Angeles, CA, USA, 1/23/91.
Jacques S, Flock ST. Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter. In Chance B, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1431. Publ by Int Soc for Optical Engineering. 1991. p. 12-20
Jacques, Steven ; Flock, Stephen T. / Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter. Proceedings of SPIE - The International Society for Optical Engineering. editor / Britton Chance. Vol. 1431 Publ by Int Soc for Optical Engineering, 1991. pp. 12-20
@inproceedings{a8acf2b7d50647dca3abe379bffd5fe5,
title = "Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter",
abstract = "This paper presents initial studies on a prototype catheter device suitable for the biopsy channel of an endoscope. A pair of optical fibers, one a source and one a collector, were adjoined with epoxy to create a single catheter tip. Such close proximity of two fibers is a special case of the generic R(r,t) measurement, where the fiber separation (r) approaches zero. The influence of an air/tissue surface boundary on the time-resolved collection of photons backscattered by a turbid media is presented. The catheter was either (1) placed on the surface of an aqueous turbid solution, or (2) imbedded deep within the volume and distant from the surface or any boundaries. The time course of photon collection was found to be strongly influenced by the surface boundary. Such boundary effects are pertinent to the design of time-resolved catheters which require close spacing of the source and collector fibers.",
author = "Steven Jacques and Flock, {Stephen T.}",
year = "1991",
language = "English (US)",
volume = "1431",
pages = "12--20",
editor = "Britton Chance",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "Publ by Int Soc for Optical Engineering",

}

TY - GEN

T1 - Effect of surface boundary on time-resolved reflectance. Measurements with a prototype endoscopic catheter

AU - Jacques, Steven

AU - Flock, Stephen T.

PY - 1991

Y1 - 1991

N2 - This paper presents initial studies on a prototype catheter device suitable for the biopsy channel of an endoscope. A pair of optical fibers, one a source and one a collector, were adjoined with epoxy to create a single catheter tip. Such close proximity of two fibers is a special case of the generic R(r,t) measurement, where the fiber separation (r) approaches zero. The influence of an air/tissue surface boundary on the time-resolved collection of photons backscattered by a turbid media is presented. The catheter was either (1) placed on the surface of an aqueous turbid solution, or (2) imbedded deep within the volume and distant from the surface or any boundaries. The time course of photon collection was found to be strongly influenced by the surface boundary. Such boundary effects are pertinent to the design of time-resolved catheters which require close spacing of the source and collector fibers.

AB - This paper presents initial studies on a prototype catheter device suitable for the biopsy channel of an endoscope. A pair of optical fibers, one a source and one a collector, were adjoined with epoxy to create a single catheter tip. Such close proximity of two fibers is a special case of the generic R(r,t) measurement, where the fiber separation (r) approaches zero. The influence of an air/tissue surface boundary on the time-resolved collection of photons backscattered by a turbid media is presented. The catheter was either (1) placed on the surface of an aqueous turbid solution, or (2) imbedded deep within the volume and distant from the surface or any boundaries. The time course of photon collection was found to be strongly influenced by the surface boundary. Such boundary effects are pertinent to the design of time-resolved catheters which require close spacing of the source and collector fibers.

UR - http://www.scopus.com/inward/record.url?scp=0025901572&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025901572&partnerID=8YFLogxK

M3 - Conference contribution

VL - 1431

SP - 12

EP - 20

BT - Proceedings of SPIE - The International Society for Optical Engineering

A2 - Chance, Britton

PB - Publ by Int Soc for Optical Engineering

ER -