3D Slicer for Image Guided Therapy
Program
Goal:
To develop general display, control, and communications modules
providing a resource to support diverse IGT applications
– Thermal therapies
– Vascular interventions
– Surgical excision
Specific Aim:
Provide seemless tracking for rigid tools and catheters inside and
outside of MRI scanner.
Enable
– Dynamic Volume Acquisition
– Continuous 3D Visualization
– Real-time MR System Control
Tracking Systems
GE
Instatrak
Tip Tracking
NDI
Polaris
Aurora
IGT
Flashpoint
Robin Medical
Endoscout
Biosense Webster
CARTO
Ascension
Bird, Microbird
EM
MRI
Passive optical, hybrid
EM
Active optical
EM / MRI gradient
EM / induction coil
EM
Slaving of 3D Slicer Workstation
• Read coordinates from FDA approved
system (e.g., GE Navs).
• FDA approved system provides primary
source of information to clinician
• 3D Slicer provides augmented information
(e.g., DTI) and will serve as a research
platform.
Platforms
• 3D Slicer
• Pai Saiveroonporn – Thermal mapping,
on-line scanner control
• Ryoichi (under Zientara grant) – Cryo
iceball prediction
• Eigil Samset – Oslo
• Randy Ellis – Queens College
• Mike Guttmann - NIH
Interactive Scanner Control
Dynamic re-sizing, re-orienting and re-positioning
for rapid targeting of treated volume
Adaptive Scanner Control
Multi-computer
Control Console
100
50
0
1st
1stQtr
Qtr
2nd Qtr
MRI Scanner System
Dynamic re-ordering and reshaping of acquisition
for rapid adaptation to changes in treated volume
Flexible protocol definition to serve
diverse IGT applications
Temperature
Visualization
adjustment
Multi-planar views of treatment
evolution: real-time or retrospective
Anatomical
Temperature
Thermal Dose
Real-time rendering of treatment
volume
Temperature
Thermal Dose
Temperature
Thermal Dose
Real-time Surface Visualization
Temperature
Thermal Dose
Temperature
Thermal Dose
Cryotherapy (Zientara)
• Intra-procedural 3D Assessment
Real-time Monitoring and Controlling
CRYOTHERAPY – RENAL
3) Monitoring 4) Controlling
2nd 15 min Freeze
Real-time Control of 3D-Slicer Visualization using
Coordinates from Electrophysiological Catheter
Tracking System (Westin)
Reformatted view of the
MRI volume using the
location and orientation
of the CARTO points.
Microscope/endoscope video
registration to MR/CT
• Simon Warfield P01
• Lighthouse Imaging
SBIR, CIMIT
A Navigation System for Augmenting
Laparoscopic Ultrasound (Ellsmere)
Neuro intervention (Pujol)
Ascension microbird integrated into Slicer
Open tracker
•
•
•
•
www.studierstube.org/opentracker
Developed by Technical University of Graz
flexible XML based tracking framework
source code available under for Windows, Irix
and Linux.
• includes drivers for a range of different tracking
systems.
• modules for some addition tracking systems
have been developed by Samset et al.
• can be used to maintain registration across
different tracking systems