2026-05-20T03:50:46Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/132472024-10-31T11:42:21Zcom_20.500.12105_19604com_20.500.12105_2051col_20.500.12105_19605col_20.500.12105_19607
Repisalud
author
Ferreira da Silva, Tiago
author
Galan-Arriola, Carlos
author
Montesinos, Paula
author
Lopez-Martin, Gonzalo J.
author
Desco, Manuel
author
Fuster, Valentin
author
Ibáñez, Borja
author
Sanchez-Gonzalez, Javier
funder
Unión Europea. Comisión Europea. H2020
funder
Instituto de Salud Carlos III
funder
Comunidad de Madrid (España)
funder
Ministerio de Ciencia, Innovación y Universidades (España)
funder
Fundación ProCNIC
2021-07-19T11:27:15Z
2021-07-19T11:27:15Z
2020-12
MAGMA. 2020; 33(6):865-876
10.1007/s10334-020-00848-2
0968-5243
Magma (New York, N.Y.)
32410103
http://hdl.handle.net/20.500.12105/13247
To propose and validate a novel imaging sequence that uses a single breath-hold whole-heart 3D T1 saturation recovery compressed SENSE rapid acquisition (SACORA) at 3T.
The proposed sequence combines flexible saturation time sampling, compressed SENSE, and sharing of saturation pulses between two readouts acquired at different RR intervals. The sequence was compared with a 3D saturation recovery single-shot acquisition (SASHA) implementation with phantom and in vivo experiments (pre and post contrast; 7 pigs) and was validated against the reference inversion recovery spin echo (IR-SE) sequence in phantom experiments.
Phantom experiments showed that the T1 maps acquired by 3D SACORA and 3D SASHA agree well with IR-SE. In vivo experiments showed that the pre-contrast and post-contrast T1 maps acquired by 3D SACORA are comparable to the corresponding 3D SASHA maps, despite the shorter acquisition time (15s vs. 188s, for a heart rate of 60 bpm). Mean septal pre-contrast T1 was 1453 ± 44 ms with 3D SACORA and 1460 ± 60 ms with 3D SASHA. Mean septal post-contrast T1 was 824 ± 66 ms and 824 ± 60 ms.
3D SACORA acquires 3D T1 maps in 15 heart beats (heart rate, 60 bpm) at 3T. In addition to its short acquisition time, the sequence achieves good T1 estimation precision and accuracy.
eng
Single breath-hold saturation recovery 3D cardiac T1 mapping via compressed SENSE at 3T.
journal article
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