- Center for Advanced Magnetic Resonance Imaging and Spectroscopy
- Center for Advanced Computed Tomography Imaging Services
- Computational Breast Imaging Group
- Cardiovascular Research Group
- Center for Functional Neuroimaging
- Center for Translational Imaging Informatics
- Laboratory of Molecular Imaging
- Laboratory for Multinuclear Magnetic Resonance Imaging
- Lab for Structural NMR Imaging
- Molecular Imaging Chemistry Lab
- Molecular Imaging of Cardiovascular Diseases
- Medical Informatics Group
- Medical Image Processing Group
- Center for Magnetic Resonance and Optical Imaging
- Nuclear Medicine Physics and Instrumentation Group
- PET Center
- Penn Image Computing and Science Laboratory
- RADCORE
- RADIANCE
- Radiopharmaceutical Chemistry Section
- Small Animal Imaging Facility
- Section for Biomedical Image Analysis
- Ultrasound Research Laboratory
- X-ray Physics Lab
Cardiovascular Research Group - Wall Motion
Applications of SPAMM Imaging - Infarct
K9 Cardiomyoplasty analyzed with 2D optical flow
Displacement Map of Cardiomyoplasty
Left: Nonstimulated demonstrates uniform displacement over the entire left ventricle.
Right: Muscle stimulation resulted in an increase in displacement in the anterior region of the left ventricle.
Maximum Principal Strain Lambda 1
Left: Uniform strain pattern in the nonstimulated myoplasty.
Right: Stimulation increased the principle strain in the anterior region indicating an improvement in function.
3D Surface Modeling
3 Month Post-MI, Control (left) and Treated (right).
Border Zone Analysis Performed Using 2D Optical Flow
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Left: Created anterior infarct. |
Right: Placed titanium markers at BZ. |
Short axis image of an ovine infarct model eight weeks post infarct with marker indicating border zone region. The border zone was considered to be the adjacent myocardium within a 20 degree arc of the marker.
Systolic Radial Strain Dynamics
In the non-infarct border zone, strain increased linearly from end-diastole to end-systole. Strain increased during isovolumic contraction in the control group but decreased thereafter. The CSD strain increased then remained constant and dramatically increased during late ejection.
