Regional lung ventilaton from volumetric CT scans using image warping functions

S Krishnan; K C Beck; J M Reinhardt; K A Carlson; B A Simon; R K Albert; E A Hoffman

doi:10.1109/ISBI.2004.1398657

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Conference proceeding

Regional lung ventilaton from volumetric CT scans using image warping functions

S Krishnan, K C Beck, J M Reinhardt, K A Carlson, B A Simon, R K Albert and E A Hoffman

2004 2ND IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING: MACRO TO NANO, VOLS 1 AND 2, pp.792-795

2004

DOI: 10.1109/ISBI.2004.1398657

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Abstract

We describe a unique method to determine regional June, ventilation non-invasively. In this study, lungs of two sheep were imaged utilizing a multi-detector row CT while maintaining the lungs at different lung inflations in prone and supine positions. Analysis of cross-sections was then performed on the subjects. We made use of a warping function to map lung regions at different lung volumes based on a set of user-defined landmarks, and validated the warping functions using a set of implanted metal markers. The change in Hounsfield units within smaller lung regions was then used to calculate the percentage air content and regional ventilation.

Details

Title: Subtitle: Regional lung ventilaton from volumetric CT scans using image warping functions
Creators: S Krishnan
K C Beck
J M Reinhardt
K A Carlson
B A Simon
R K Albert
E A Hoffman
Resource Type: Conference proceeding
Publication Details: 2004 2ND IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING: MACRO TO NANO, VOLS 1 AND 2, pp.792-795
DOI: 10.1109/ISBI.2004.1398657
Language: English
Date published: 2004
Academic Unit: Radiology; Roy J. Carver Department of Biomedical Engineering; Internal Medicine
Record Identifier: 9984232132502771

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