Mehdi Hedjazi Moghari1, Peng Hu1,
Christian Stoeck2, Jouke Smink3, Dana C. Peters1,
Beth Goddu1, Lois Goepfert1, Warren J. Manning1,
Reza Nezafat1
1Beth Israel Deaconess Medical Center,
Harvard Medical School, Boston, MA, United States; 2University and
ETH, Biomedical Engineering, Zurich, Switzerland; 3Philips-Healthcare,
Best, Netherland
The
impact of correct subject-dependent slice tracking factor in whole-heart
coronary imaging is studied in this paper. In preparation phase, two
projection-based respiratory navigators are positioned at the diaphragm edge
and center of heart to calculate the slice tracking factor. The
projection-based navigator at the diaphragm with the estimated scale factor
is employed for the whole-heart coronary image reconstruction. The
constructed images outperform the ones acquired with the pencil beam
navigator with the constant scale factor 0.6.