Non-contrast free-breathing whole-heart 3D cine cardiovascular magnetic resonance with a novel 3D radial leaf trajectory
| العنوان: | Non-contrast free-breathing whole-heart 3D cine cardiovascular magnetic resonance with a novel 3D radial leaf trajectory |
|---|---|
| المؤلفون: | Braunstorfer, L., Romanowicz, J., Powell, A.J., Pattee, J., Browne, L.P., Geest, R.J. van der, Moghari, M.H. |
| المصدر: | Magn Reson Imaging Magnetic Resonance Imaging, 94, 64-72. ELSEVIER SCIENCE INC |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Free -breathing, Magnetic Resonance Spectroscopy, Respiration, Biomedical Engineering, Biophysics, Magnetic Resonance Imaging, Cine, Reproducibility of Results, Whole -heart, 3D cine, Heart, Article, Imaging, Three-Dimensional, And 3D radial trajectory, Humans, Cardiovascular magnetic resonance, Radiology, Nuclear Medicine and imaging, Ventricular function |
| الوصف: | Purpose: To develop and validate a non-contrast free-breathing whole-heart 3D cine steady-state free precession (SSFP) sequence with a novel 3D radial leaf trajectory.Methods: We used a respiratory navigator to trigger acquisition of 3D cine data at end-expiration to minimize respiratory motion in our 3D cine SSFP sequence. We developed a novel 3D radial leaf trajectory to reduce gradient jumps and associated eddy-current artifacts. We then reconstructed the 3D cine images with a resolution of 2.0mm3 using an iterative nonlinear optimization algorithm. Prospective validation was performed by comparing ventricular volumetric measurements from a conventional breath-hold 2D cine ventricular short-axis stack against the non-contrast free-breathing whole-heart 3D cine dataset in each patient (n = 13).Results: All 3D cine SSFP acquisitions were successful and mean scan time was 07:09 +/- 01:31 min. End-diastolic ventricular volumes for left ventricle (LV) and right ventricle (RV) measured from the 3D datasets were smaller than those from 2D (LV: 159.99 +/- 42.99 vs. 173.16 +/- 47.42; RV: 180.35 +/- 46.08 vs. 193.13 +/- 49.38; p-value = 0.190, bias |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f363ec27c9e1d4aa3ed43f9e6f7b25f https://europepmc.org/articles/PMC9631735/ |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....9f363ec27c9e1d4aa3ed43f9e6f7b25f |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |