%0 Journal Article %1 Kim2001 %A Kim, W. Yong %A Stuber, Matthias %A Kissinger, Kraig V. %A Andersen, Niels Trolle %A Manning, Warren J. %A Botnar, René M. %D 2001 %I John Wiley & Sons, Inc. %J J Magn Reson Imaging %K (MR), MR angiography, arteries, artery coronary correction, disease, magnetic motion of resonance the wall %N 4 %P 383--390 %R 10.1002/jmri.1198 %T Impact of bulk cardiac motion on right coronary MR angiography and vessel wall imaging %U http://dx.doi.org/10.1002/jmri.1198 %V 14 %X Abstract The purpose of this study was to investigate the impact of in-plane coronary artery motion on coronary magnetic resonance angiography (MRA) and coronary MR vessel wall imaging. Free-breathing, navigator-gated, 3D-segmented k-space turbo field echo ((TFE)/echo-planar imaging (EPI)) coronary MRA and 2D fast spin-echo coronary vessel wall imaging of the right coronary artery (RCA) were performed in 15 healthy adult subjects. Images were acquired at two different diastolic time periods in each subject: 1) during a subject-specific diastasis period (in-plane velocity <4 cm/second) identified from analysis of in-plane coronary artery motion, and 2) using a diastolic trigger delay based on a previously implemented heart-rate-dependent empirical formula. RCA vessel wall imaging was only feasible with subject-specific middiastolic acquisition, while the coronary wall could not be identified with the heart-rate-dependent formula. For coronary MRA, RCA border definition was improved by 13% (P < 0.001) with the use of subject-specific trigger delay (vs. heart-rate-dependent delay). Subject-specific middiastolic image acquisition improves 3D TFE/EPI coronary MRA, and is critical for RCA vessel wall imaging. J. Magn. Reson. Imaging 2001;14:383–390. © 2001 Wiley-Liss, Inc.

@article{Kim2001, abstract = {Abstract The purpose of this study was to investigate the impact of in-plane coronary artery motion on coronary magnetic resonance angiography (MRA) and coronary MR vessel wall imaging. Free-breathing, navigator-gated, 3D-segmented k-space turbo field echo ((TFE)/echo-planar imaging (EPI)) coronary MRA and 2D fast spin-echo coronary vessel wall imaging of the right coronary artery (RCA) were performed in 15 healthy adult subjects. Images were acquired at two different diastolic time periods in each subject: 1) during a subject-specific diastasis period (in-plane velocity <4 cm/second) identified from analysis of in-plane coronary artery motion, and 2) using a diastolic trigger delay based on a previously implemented heart-rate-dependent empirical formula. RCA vessel wall imaging was only feasible with subject-specific middiastolic acquisition, while the coronary wall could not be identified with the heart-rate-dependent formula. For coronary MRA, RCA border definition was improved by 13% (P < 0.001) with the use of subject-specific trigger delay (vs. heart-rate-dependent delay). Subject-specific middiastolic image acquisition improves 3D TFE/EPI coronary MRA, and is critical for RCA vessel wall imaging. J. Magn. Reson. Imaging 2001;14:383–390. © 2001 Wiley-Liss, Inc.}, added-at = {2013-05-24T13:11:10.000+0200}, author = {Kim, W. Yong and Stuber, Matthias and Kissinger, Kraig V. and Andersen, Niels Trolle and Manning, Warren J. and Botnar, René M.}, biburl = {https://www.bibsonomy.org/bibtex/2ffaf8e77abdc844dcc0ad4de6c42e845/jpowell}, doi = {10.1002/jmri.1198}, interhash = {2ded47bf6ace84b573842a6e4bdd264e}, intrahash = {ffaf8e77abdc844dcc0ad4de6c42e845}, issn = {1522-2586}, journal = {J Magn Reson Imaging}, keywords = {(MR), MR angiography, arteries, artery coronary correction, disease, magnetic motion of resonance the wall}, number = 4, owner = {jpowell}, pages = {383--390}, publisher = {John Wiley \& Sons, Inc.}, timestamp = {2013-05-24T13:11:15.000+0200}, title = {{I}mpact of bulk cardiac motion on right coronary {MR} angiography and vessel wall imaging}, url = {http://dx.doi.org/10.1002/jmri.1198}, volume = 14, year = 2001 }