Date & Time
Search
Datum
{{range.dates[index].day}}
{{range.dates[index].date}}
Time
Mornings Noon Afternoons Evenings
  • from
  • to
  • o'clock
Topic
Event location
Event
Properties
{{item.name}}
{{item.name}}
Exhibition venue

(please choose the desired areas)

Lecture language
Format

Event database

The event database contains all event-related information for the World of Photonics Congress.

Back to the EventList

Tumor ablation and volumetric optoacoustic monitoring with a short-pulsed laser source

JUN
24
2019
24. JUN 2019

Lecture Hall A1 European Conferences on Biomedical Optics (ECBO) > Opto-Acoustic Methods and Applications in Biophotonics > Clinical Applications II

12:15-12:30 h | Hall A1 Room 7 "Dennis Gábor"

Subjects: Biophotonics and Medical Engineering

Chairman: Daniel Razansky (, ETH Zurich)

Type: Lecture

Speech: English

Cancer treatments based on laser ablation (LA) are gaining popularity as an alternative to tumor resection. LA represents a minimally invasive intervention that can be selectively delivered via optical fibers or other light guides, thus leading to less pain and shorter recovery time. Monitoring of ablation procedures is essential to determine the end-point of irradiation and optimize the outcome of the interventions. Particularly, accurate measurements of the temperature and the exposure time of the treated region are crucial factors affecting the induced lesion. Imaging techniques such as computed tomography, ultrasound and magnetic resonance have been used for imaging and monitoring the ablation lesion. However, these imaging techniques have drawbacks such as requirement of contrast agents, poor spatio-temporal resolution or high cost. Optoacoustics (OA, photoacoustic) has recently been shown to provide unique properties to monitor the ablation process. Particularly, OA signals are highly sensitive to temperature variations and state-of-the-art OA systems can provide real-time imaging in entire volumes at hundreds of Hz. Herein, we demonstrate the feasibility of OA imaging with the same short-pulsed 1064 nm laser source used during the LA of murine breast tumor model. The effect of irradiation was volumetrically tracked with the OA images acquired with a 256-element spherical array. Structural damage of the tissue was clearly seen during the LA procedure.

Informations

Vijitha Periyasamy
Vijitha Periyasamy

Location

Eingang
Nord-West
ICM
Eingang
Nord
Eingang
West
Atrium
Eingang
Nord-Ost
Eingang
Ost
Conference
Center Nord
Freigelände
C1
C2
C3
C4
C5
C6
B0
B1
B2
B3
B4
B5
B6
A1
A2
A3
A4
A5
A6

More Events