medical imaging - introductioncvinhais.noip.me/materials/phys/phys_medicalimaging_en.pdf · medical...
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Medical ImagingIntroduction
Carlos A. [email protected]
ISEP – Departamento de F́ısicaInstituto Superior de Engenharia do Porto
Porto, Portugal
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Medical ImagingOverview
Nobels
Imaging Modalities
DICOM and PACS
Image Processing
Scientific Visualization
Software and Toolkits
Physics Lecture Notes
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Medical ImagingNobels
1901 Roentgen (Physics)Discovery of X-radiation
1944 Rabi (Physics)Nuclear magnetic resonance (NMR) methodology
1952 Bloch and Purcell (Physics)NMR precision measurements
1979 Cormack and Hounsfield (Medicine)Computed tomography (CT)
1991 Ernst (Chemistry)High-resolution NMR spectroscopy
2003 Laterbur and Mansfield (Medicine)Discoveries concerning magnetic resonance imaging (MRI)
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Medical ImagingImaging Modalities
Transmission
RadiographyComputed Tomography
Emission
Magnetic ResonanceNuclear medicine
Reflection (Scatter)
UltrasoundTermography
Image Properties
Limitations on informationcontent:
ContrastNoiseSharpnessDistortionDynamic/Static
Technical Perspective
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Medical ImagingImaging Modalities
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Medical ImagingTransmission Imaging
2D Projection
Radiography
1D Projection
Computed Tomography
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Medical ImagingTransmission Imaging
Digital Radiography
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Medical ImagingTransmission Imaging
Chest Radiography (PA, inter-patient)
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Medical ImagingTransmission Imaging
Chest Radiography (PA/LAT, intra-patient)
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Medical ImagingTransmission Imaging
Computed Tomography
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Medical ImagingEmission Imaging
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Medical ImagingEmission Imaging
Magnetic Resonance
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Medical ImagingEmission Imaging
Magnetic Resonance
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Medical ImagingEmission Imaging
Nuclear Medicine
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Medical ImagingReflection (Scatter) Imaging
Ultrasound
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Medical ImagingDICOM and PACS
DICOM – Digital Imaging and Communications in Medicine
Comprehensive set of standards for handling, storing andtransmitting information in medical imaging
DICOM files
header (set of fields)body of image data
NEMA – The DICOM Standard 2016a (20 parts)http://dicom.nema.org/standard.html
DICOM Part 1: Introduction and OverviewDICOM Part 6: Data Dictionary
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Medical ImagingDICOM and PACS
PACS – Picture Archiving and Communication System
Public Image Databases
Standard imagesCommercial sets (e.g. JSRT – Lung nodules)
Private Image Databases
Hospitals/ClinicsImaging Centers
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Medical ImagingImage Processing
Computer Algorithms
Image IOFilteringSegmentationRegistrationAnalysis
Applications/Systems
Computer Aided Diagnosis (CAD)Computer guided therapry/surgery
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Medical ImagingScientific Visualization
Visualization Techniques(MPR, MIP, DRR, . . . )
Multiplanar Reconstruction
Intensity Projection
Digital Reconsctuction
Volume Rendering
Surface Reconstruction
Image Overlay
Image Fusion
Fused PET-CT Imageof Tumoral Adenopathy
(http://www.kitware.com/viscontest/medicalviswinner.html)
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Medical ImagingScientific Visualization
Brain Connectivity and TumorVisualization for Radiosurgery
Computer-Assisted Pediatric Surgeryfor a Baby with Vascular Anomaly
(http://www.kitware.com/viscontest/medicalviswinner.html)
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Medical ImagingSoftware and Toolkits
Open Source Toolkits
ITKInsight Toolkithttp://www.itk.org/
VTKVisualization Toolkithttp://www.vtk.org/
CMakeBuild and Testhttps://cmake.org/
Software
ITK Snap3D Image Segmentationhttp://www.itk.org/
ParaviewParallel Visualizationhttp://www.paraview.org/
Python(x,y)Scientific Developmenthttp://python-xy.github.io/
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Medical ImagingPhysics
Physics Lecture Notes
Radiation and the Atom
Interaction of Radiation with Matter
X-Ray Imaging
Digital Radiography
Computed Tomography
Magnetic Resonance Imaging
Positron Emission Tomography
Single Photon Emission Computed Tomography
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Medical ImagingPhysics
Physics Lecture Notes (cont.)
Ultrasound Physics
Ultrasonic Transducers
Ultrasound Imaging
Ultrasound Doppler
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End.
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