An off-resonance insensitive orthogonal CSPAMM sequence (ORI-O-CSPAMM) for the acquisition of CSPAMM and MICSR grids in half scan time
link https://doi.org/10.1002/mrm.28916account_box Mella, Hernanaccount_box Wang, Huiaccount_box Montalba, Cristianaccount_box Uribe, Sergio
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Purpose: To develop an Off-Resonance Insensitive Orthogonal CSPAMM sequence (ORI-O-CSPAMM) for the acquisition of CSPAMM and MICSR grids in half of the acquisition time.
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| Autor | Mella, Hernan Wang, Hui Montalba, Cristian Uribe, Sergio |
| Título | An off-resonance insensitive orthogonal CSPAMM sequence (ORI-O-CSPAMM) for the acquisition of CSPAMM and MICSR grids in half scan time |
| Revista | Magnetic resonance in medicine |
| ISSN | 0740-3194 |
| ISSN electrónico | 1522-2594 |
| Volumen | 86 |
| Número de publicación | 6 |
| Página inicio | 3022 |
| Página final | 3033 |
| Fecha de publicación | 2021 |
| Resumen | Purpose: To develop an Off-Resonance Insensitive Orthogonal CSPAMM sequence (ORI-O-CSPAMM) for the acquisition of CSPAMM and MICSR grids in half of the acquisition time. Methods: Phantom and mid-level left ventricle short-axis tagged images were acquired using CSPAMM, ORI-CSPAMM, O-CSPAMM, and the proposed ORI-O-CPAMM sequences to interrogate and compare its behavior under off-resonance effects produced by vegetable oil and subcutaneous and epicardial fat. The images were compared in terms of signal and the capacity to obtain complex difference and MICSR images. Results: Like ORI-CSPAMM, the proposed ORI-O-CSPAMM sequence removed almost completely the off-resonance artifacts produced during the tagging preparation. Tagging grids without DC components were obtained with ORI-O-CSPAMM using complex difference and MICSR from only two complementary images, which reduced the scan time to a half compared to CSPAMM and ORI-CSPAMM. The removal of off-resonance effects and the capacity to obtain MICSR images are advantages of ORI-O-CSPAMM over the O-CSPAMM sequence. Conclusion: We developed a novel and fast tagging sequence designed to remove off-resonance effects during the tagging preparation, and to obtain complex difference and MICSR grids in half of the scan time compared to CSPAMM and ORI-CSPAMM sequences, which could allow its application to clinical protocols. |
| Derechos | acceso restringido |
| DOI | 10.1002/mrm.28916 |
| Enlace | |
| Id de publicación en WoS | WOS:000672286200001 |
| Palabra clave | cardiac MRI CSPAMM MICSR off-resonance insensitive tagging |
| Tema ODS | 03 Good Health and Well-being |
| Tema ODS español | 03 Salud y bienestar |
| Tipo de documento | artículo |