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 language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Britton Chance |
| Publisher | Publ by Int Soc for Optical Engineering |
| Pages | 12-20 |
| Number of pages | 9 |
| Volume | 1431 |
| State | Published - 1991 |
| Externally published | Yes |
| Event | Proceedings of Time-Resolved Spectroscopy and Imaging of Tissues - Los Angeles, CA, USA Duration: Jan 23 1991 → Jan 24 1991 |
Other
| Other | Proceedings of Time-Resolved Spectroscopy and Imaging of Tissues |
|---|---|
| City | Los Angeles, CA, USA |
| Period | 1/23/91 → 1/24/91 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
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 proceeding › Conference contribution
}
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.
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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 -