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 SystemsGE

Instatrak EMTip Tracking MRI

NDIPolaris Passive optical, hybridAurora EM

IGTFlashpoint Active optical

Robin MedicalEndoscout EM / MRI gradient

Biosense WebsterCARTO EM / induction coil

AscensionBird, Microbird 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

1st Qtr 2nd Qtr

0

50

100

1st Qtr 2nd Qtr

Control Console

Multi-computer

MRI Scanner System

Adaptive Scanner Control

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 Dosemovie

Real-time rendering of treatment volume

movie

Temperature

Thermal Dose

Temperature Thermal Dose

Real-time Surface Visualization

movie

Temperature

Thermal Dose

Temperature Thermal Dose

Cryotherapy (Zientara)

• Intra-procedural 3D Assessment

Real-time Monitoring and Controlling

CRYOTHERAPY – RENAL3) 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 AugmentingLaparoscopic 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