Quantitative computed tomography in COPD: possibilities and limitations

OM Mets, PA De Jong, B Van Ginneken, HA Gietema… - Lung, 2012 - Springer
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease that is
characterized by chronic airflow limitation. Unraveling of this heterogeneity is challenging …

Mass preserving nonrigid registration of CT lung images using cubic B‐spline

Y Yin, EA Hoffman, CL Lin - Medical physics, 2009 - Wiley Online Library
The authors propose a nonrigid image registration approach to align two computed‐
tomography (CT)‐derived lung datasets acquired during breath‐holds at two inspiratory …

Detailed analysis of the density change on chest CT of COPD using non-rigid registration of inspiration/expiration CT scans

EY Kim, JB Seo, HJ Lee, N Kim, E Lee, SM Lee… - European …, 2015 - Springer
Objectives One objective was to evaluate the air trapping index (ATI), measured by
inspiration/expiration CT, in COPD patients and nonsmokers. Another objective was to …

Regional lung function and heterogeneity of specific gas volume in healthy and emphysematous subjects

A Aliverti, F Pennati, C Salito… - European Respiratory …, 2013 - Eur Respiratory Soc
The aim of our study was to study regional lung function by standard computed tomography
(CT) and characterise regional variations of density and specific gas volume (SVg) between …

Computational analysis of thoracic multidetector row HRCT for segmentation and quantification of small airway air trapping and emphysema in obstructive pulmonary …

EM Barbosa Jr, G Song, N Tustison, M Kreider… - Academic radiology, 2011 - Elsevier
RATIONALE AND OBJECTIVES: Obstructive pulmonary disease phenotypes are related to
variable combinations of emphysema and small-airway disease, the latter manifested as air …

Computed-tomography findings of emphysema: correlation with spirometric values

H Omori, K Fujimoto, T Katoh - Current opinion in pulmonary …, 2008 - journals.lww.com
Volumetric computed-tomography scans allow diagnosis and quantification of the individual
small airway and emphysema phenotypes present in people with chronic obstructive …

Volumetric deformable registration method for thoracic 4-D computed tomography images and method of determining regional lung function

M Negahdar, AA Amini, N Dunlap, S Woo - US Patent 9,076,201, 2015 - Google Patents
A method of deformable image registration for thoracic 4-D computed tomography (CT)
images includes: receiving, by a processing device, a set of thoracic 4-D CT images; and …

[图书][B] Correction techniques in emission tomography

M Dawood, X Jiang, K Schäfers - 2012 - api.taylorfrancis.com
1.1 Introduction...................................................... 1 1.2 Principle of emission
tomography................................ 2 1.3 Electromagnetic spectrum....................................... 4 1.4 …

Deformable lung registration between exhale and inhale CT scans using active cells in a combined gradient force approach

Y Yim, H Hong, YG Shin - Medical physics, 2010 - Wiley Online Library
Purpose: This article proposes an accurate and fast deformable registration method
between end‐exhale and end‐inhale CT scans that can handle large lung deformations and …

[PDF][PDF] Quantitative assessment of global and regional air trappings using non-rigid registration and regional specific volume change of inspiratory/expiratory CT scans …

E Lee, JB Seo, HJ Lee, EJ Chae… - Korean Journal of …, 2015 - synapse.koreamed.org
Objective: The purpose of this study was to compare air trapping in healthy volunteers with
asthmatics using pulmonary function test and quantitative data, such as specific volume …