Abstract
A method to track a grid of cardiac material points in three dimensions using slice-following (SF) tagged magnetic resonance imaging (MRI) and harmonic-phase MRI is presented. A three-dimensional grid of material points on the lines of intersections of short-axis (SA) and long-axis (LA) planes is automatically tracked by combining two-dimensional pathlines that are computed on both SA and LA image planes. This process yields the true three-dimensional motion of points originating on the image plane intersections. Experimental data from normal volunteers, each obtained in four short breath-holds using the SF harmonic phase MRI pulse sequence, is presented. A validation of two-dimensional in-plane tracks using this pulse sequence on a moving phantom is also presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 197-208 |
| Number of pages | 12 |
| Journal | Magnetic Resonance Imaging |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2007 |
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Keywords
- Cardiac motion
- Cardiac strain
- HARP
- Magnetic resonance tagging
- Slice-following
ASJC Scopus subject areas
- Biophysics
- Clinical Biochemistry
- Structural Biology
- Radiology Nuclear Medicine and imaging
- Condensed Matter Physics
Cite this
Automatic 3D tracking of cardiac material markers using slice-following and harmonic-phase MRI. / Sampath, Smita; Prince, Jerry Ladd.
In: Magnetic Resonance Imaging, Vol. 25, No. 2, 02.2007, p. 197-208.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Automatic 3D tracking of cardiac material markers using slice-following and harmonic-phase MRI
AU - Sampath, Smita
AU - Prince, Jerry Ladd
PY - 2007/2
Y1 - 2007/2
N2 - A method to track a grid of cardiac material points in three dimensions using slice-following (SF) tagged magnetic resonance imaging (MRI) and harmonic-phase MRI is presented. A three-dimensional grid of material points on the lines of intersections of short-axis (SA) and long-axis (LA) planes is automatically tracked by combining two-dimensional pathlines that are computed on both SA and LA image planes. This process yields the true three-dimensional motion of points originating on the image plane intersections. Experimental data from normal volunteers, each obtained in four short breath-holds using the SF harmonic phase MRI pulse sequence, is presented. A validation of two-dimensional in-plane tracks using this pulse sequence on a moving phantom is also presented.
AB - A method to track a grid of cardiac material points in three dimensions using slice-following (SF) tagged magnetic resonance imaging (MRI) and harmonic-phase MRI is presented. A three-dimensional grid of material points on the lines of intersections of short-axis (SA) and long-axis (LA) planes is automatically tracked by combining two-dimensional pathlines that are computed on both SA and LA image planes. This process yields the true three-dimensional motion of points originating on the image plane intersections. Experimental data from normal volunteers, each obtained in four short breath-holds using the SF harmonic phase MRI pulse sequence, is presented. A validation of two-dimensional in-plane tracks using this pulse sequence on a moving phantom is also presented.
KW - Cardiac motion
KW - Cardiac strain
KW - HARP
KW - Magnetic resonance tagging
KW - Slice-following
UR - http://www.scopus.com/inward/record.url?scp=33846489028&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846489028&partnerID=8YFLogxK
U2 - 10.1016/j.mri.2006.09.033
DO - 10.1016/j.mri.2006.09.033
M3 - Article
C2 - 17275614
AN - SCOPUS:33846489028
VL - 25
SP - 197
EP - 208
JO - Magnetic Resonance Imaging
JF - Magnetic Resonance Imaging
SN - 0730-725X
IS - 2
ER -