@inproceedings{30452326bfeb49fdbbdcb9fe5e3841cb,
title = "3D left ventricular strain by phase unwrapping: A simulated annealing based branch-cut placement method",
abstract = "This paper presents an automated method for measuring 3D left ventricular (LV) strain in each imaged time frame from phase unwrapped harmonic phase (HARP) images derived from tagged cardiac magnetic resonance imaging. In previous work, manuallyplaced branch cuts were used to resolve phase inconsistencies in HARP images before they were unwrapped. This paper presents an automated method for placing branch cuts in short-axis images based on simulated annealing with a new cost function based on temporal phase consistency. This method significantly reduces the amount of user interaction needed to compute 3D strain maps in the entire LV in each imaged time frame. The unwrapped-phase-derived strains were validated on a set of 40 human studies by comparing them to strains estimated by a previously published feature based technique and a previously published unwrapped-phase technique with manual branch cut placement.",
keywords = "Left ventricle, Phase unwrapping, Strain, Tagged magnetic resonance imaging",
author = "Bharath Ambale and Denney, {Thomas S.} and Himanshu Gupta and Steven Lloyd and Louis Dell'Italia",
year = "2009",
doi = "10.1109/ISBI.2009.5193085",
language = "English (US)",
isbn = "9781424439324",
series = "Proceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009",
pages = "466--469",
booktitle = "Proceedings - 2009 IEEE International Symposium on Biomedical Imaging",
note = "2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 ; Conference date: 28-06-2009 Through 01-07-2009",
}