Ventilation‐based segmentation of the lungs using hyperpolarized 3He MRI

NJ Tustison, BB Avants, L Flors, TA Altes… - Journal of magnetic …, 2011 - Wiley Online Library
Purpose: To develop an automated segmentation method to differentiate the ventilated lung
volume on 3He magnetic resonance imaging (MRI). Materials and Methods: Computational …

Hyperpolarized 3He magnetic resonance functional imaging semiautomated segmentation

M Kirby, M Heydarian, S Svenningsen, A Wheatley… - Academic radiology, 2012 - Elsevier
RATIONALE AND OBJECTIVES: To improve intra-and interobserver variability and enable
the use of functional magnetic resonance imaging (MRI) for multicenter, multiobserver …

Spatial fuzzy c‐means thresholding for semiautomated calculation of percentage lung ventilated volume from hyperpolarized gas and 1H MRI

PJC Hughes, FC Horn, GJ Collier… - Journal of Magnetic …, 2018 - Wiley Online Library
Purpose To develop an image‐processing pipeline for semiautomated (SA) and
reproducible analysis of hyperpolarized gas lung ventilation and proton anatomical …

Feature analysis of hyperpolarized helium‐3 pulmonary MRI: a study of asthmatics versus nonasthmatics

NJ Tustison, TA Altes, G Song… - … in Medicine: An …, 2010 - Wiley Online Library
A computational framework is described that was developed for quantitative analysis of
hyperpolarized helium‐3 MR lung ventilation image data. This computational framework …

Hyperpolarized 3He magnetic resonance imaging: comparison with four-dimensional x-ray computed tomography imaging in lung cancer

L Mathew, A Wheatley, R Castillo, E Castillo… - Academic radiology, 2012 - Elsevier
RATIONALE AND OBJECTIVES: Pulmonary functional imaging using four-dimensional x-ray
computed tomographic (4DCT) imaging and hyperpolarized 3He magnetic resonance …

Imaging of lung ventilation and respiratory dynamics in a single ventilation cycle using hyperpolarized He‐3 MRI

JH Holmes, FR Korosec, J Du… - Journal of Magnetic …, 2007 - Wiley Online Library
Purpose To image respiratory dynamics and three‐dimensional (3D) ventilation during
inhalation, breath‐hold, and exhalation for evaluation of obstructive lung disease using a …

A method for quantitative analysis of regional lung ventilation using deformable image registration of CT and hybrid hyperpolarized gas/1H MRI

BA Tahir, AJ Swift, H Marshall… - Physics in Medicine …, 2014 - iopscience.iop.org
Hyperpolarized gas magnetic resonance imaging (MRI) generates highly detailed maps of
lung ventilation and physiological function while CT provides corresponding anatomical and …

Hyperpolarized 3He MR imaging of the lung: normal range of ventilation defects and PFT correlation in young adults

EY Lee, Y Sun, D Zurakowski, H Hatabu… - Journal of Thoracic …, 2009 - journals.lww.com
Objective To prospectively investigate the number, location, and size of ventilation defects
and correlate these findings with pulmonary function tests (PFTs) when performing …

Merging parametric active contours within homogeneous image regions for MRI-based lung segmentation

N Ray, ST Acton, T Altes, EE De Lange… - IEEE transactions on …, 2003 - ieeexplore.ieee.org
Inhaled hyperpolarized helium-3 (/sup 3/He) gas is a new magnetic resonance (MR)
contrast agent that is being used to study lung functionality. To evaluate the total lung …

Improved technique for measurement of regional fractional ventilation by hyperpolarized 3He MRI

K Emami, SJ Kadlecek, JM Woodburn… - … in Medicine: An …, 2010 - Wiley Online Library
Quantitative measurement of regional lung ventilation is of great significance in assessment
of lung function in many obstructive and restrictive pulmonary diseases. A new technique for …