Comprehensive Assessment Lung Structure / Function via X-ray CT
Electron Beam CT
Lung Volume Protocol
Computer Based Airway Edge Detection
Example of Airway Response
Airway Diameter and Beta Agonist Induced Change
Airway Response to Methacholine Challenge (previous study)
3D Airway Anatomy: Cystic Fibrosis
Regional Ventilation
Stable Xenon Gas as a CT Contrast Agent
Ventilation Imaging Protocol
Multi-breath Washout Subtraction Images
Repeatability of Tracer Clearance Data
Physiologic Applications: Evidence of Vertical Based Gradients
Physiologic Applications: Inspiratory Flow Rate Effects
Flow Rate Dependence : Role of Airway Geometry?
Single Breath Protocol Inspiration of 100% Xe to TLC
Single Breath With Prolonged Apnea: Instability of Dependent Lung Density
Pulmonary Blood Flow
Pulmonary Blood Flow: Normal Human Volunteer
Distribution of PBF (ml/gm/min)
Filtered FFT Deconvolution w/ Inverted Hanning Window
Transport Function (TF) of Visually Apparent Small Artery
Reduction of Transport Function’s Arterial Peak with Lung Height
Curve Fitting and Separation of Arterial and Microvascular Signals
Reconvolution of Arterial and Microvascular TF Components
Gas Exchange
TF-Based Microvascular and Arterial Mean Transit Times
Adaptive Multiple Feature Method (AMFM)
First order measures
Fractal measures
Second order measures - Cooccurrence
Second order measures - Run length
Classification
Anterior-Posterior differences
Global - Normal vs. Emphysema
Global - Normal vs. IPF
Global - Normal vs. Sarcoidosis
Global - IPF vs. Sarcoidosis
Global - Norm/Emp/IPF/Sarcoid
Regional analysis
Regional classification
Observer validation scheme
Intra-observer agreement
Three readings by observer 2 for an emphysema slice
Three readings by observer 3 for the emphysema slice
Validation results third session
Non-smokers-Smokers-COPD
Examples of local classification
Distribution of the 3 groups in the lung
3-D Airway Extraction: Accurate Quantitation & Road Map To Parenchyma
Standard For Mapping Function to Structure
Equitable Distribution of Advanced Methods of Health Care
Teleradiology Workstation for Advanced Image Display and Analysis
Broadening Accessibility of Quantitative Volumetric Imaging
Broadening Accessibility of Quantitative Volumetric Imaging cont.
Web Based Tutorials Introducing Clinical and Research Applications of Quantitative Volumetric Imaging
NLM Library of Medicine Teleradiolgoy Project.
Application Specific Tutorials
Aortic Aneurysm
Examples
Patient Scan Protocols
Volumetric Imaging Display and Analysis (VIDA) Tutorials
VIDA
VIDA Table of Contents
System Functionality
Technology Utilized
Issues (1)
Issues (2)
Issues (3)
Simplicity
Compression
Image Compression
Communication Protocols
Email: eric-hoffman@uiowa.edu
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