Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Radiance-based monitoring of the extent of tissue coagulation during laser interstitial thermal therapy

Not Accessible

Your library or personal account may give you access

Abstract

Optical monitoring relates the dynamic changes in measured light intensity to the extent of treatment-induced coagulation that occurs during laser interstitial thermal therapy. We utilized a two-region Monte Carlo simulation to elucidate the nature of the changes in interstitial radiance and fluence that result from the formation of a volume of thermal coagulation surrounding a cylindrical emitter. Using simulation results, we demonstrate that radiance sensors are more sensitive than traditional fluence sensors to coagulation-induced scattering changes. Radiance measurements take advantage of directional detection angles that are more receptive to the onset and passing of the coagulation boundary. We performed experiments with albumen phantoms to demonstrate the practicality of the radiance method for monitoring interstitial laser thermal therapy.

© 2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Miniaturised dual-modality all-optical ultrasound probe for laser interstitial thermal therapy (LITT) monitoring

Shaoyan Zhang, Semyon Bodian, Edward Z. Zhang, Paul C. Beard, Sacha Noimark, Adrien E. Desjardins, and Richard J. Colchester
Biomed. Opt. Express 14(7) 3446-3457 (2023)

Effect of optical energy modulation on the thermal response of biological tissue: computational and experimental validations

Van Nam Tran, Van Gia Truong, Yong Wook Lee, and Hyun Wook Kang
Biomed. Opt. Express 11(12) 6905-6919 (2020)

Thermal-feedback-controlled coagulation of egg white by the CO2 laser

Inci Çilesiz and Abraham Katzir
Appl. Opt. 40(19) 3268-3277 (2001)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved