computer assisted surgery and medical image …1 computer assisted surgery and medical image...
TRANSCRIPT
1
Computer Assisted Surgeryand
Medical Image Analysis
Computer Vision GroupA tifi i l I t lli L b tArtificial Intelligence Laboratory
Massachusetts Institute of TechnologySurgical Planning Lab
Brigham and Women’s HospitalHarvard Medical School
Computer assisted surgery
• Goal:• Goal:– Use computer vision techniques to plan and guide
surgical interventions, by giving the surgeon the ability to sense critical information that is not normally visible to her
• How?– Capture models of patient anatomy and function– Use to guide surgeon’s actions
2
Conventional Surgery: See the surface
Provided by Nakajima, Atsumi et al.
Image Guided Surgery: See under the surface
Provided by Leventon et al.
3
Intelligently aiding the surgeon
• Convert medical images into models of• Convert medical images into models of patient’s:– Structural anatomy– Functional anatomy
4
brachio h li
subclavian artery
common carotidartery
brachio cephalic
Central Vessels
cephalic trunc
brachio cephalictrunc
pulmonary trunk pulmonary veins
aorta
Courtesy of Lorigo
Cartilage Thickness MappingMapping
Courtesy Warfield, Winalski
5
Functional information
Visualizing the surgical site• Augmented g
reality visualizations
• Surgical guidance
• Simulation of surgical navigation
6
Visualizing the surgical site
• AugmentedAugmented reality visualizations
• Surgical guidance
• Simulation of surgical navigation
Surgical navigation
7
Visualizing the surgical site
• Augmented• Augmented reality visualizations
• Surgical guidance
• Simulation of• Simulation of surgical navigation
Medical Imaging at Medical Imaging at LEMS
Benjamin Kimia, Joseph Mundy
8
Carpal Bone SegmentationSegmentation of carpal bones from CT images, to be used in the study of carpal dynamics
9
Image Guided TherapyEstimation of Spine Vertebrate position for needle procedures
Fine Resolution Visualization of Surfaces Brain surface visualization
10
Computational AtlasesStudying the notion of an “Average Shape” and quantifying deviations from that, to study diseased vs healthy population, fMRI, etc
Averaging Metacarpals and Corpus Collosi
Comparison before and after normalization