@InProceedings{Supelec583,
author = {Brice Fernandez and Julien Oster and Maélène Lohezic and Damien Mandry and Olivier Pietquin and Pierre-André Vuissoz and Jacques Felblinger},
title = {{Beat to Beat Management of Heart Cycle Changes for Black Blood Imaging in End-Systolic Rest}},
year = {2010},
booktitle = {{Proceedings of the ISMRM workshop on Current Concepts of Motion Correction for MRI and MRS}},
month = {February},
address = {Kitzbuhel (Austria)},
abstract = {In cardiac MR imaging, the Double Inversion Recovery Fast Spin
Echo (DIR-FSE) sequence [1] (also called “black blood”) enables
to suppress the blood signal for an accurate depiction of the
myocardium. The inversion time (TI) required to suppress the
blood signal is constrained by the T1 of the blood and the
repetition time [2]. Since the T1 of the blood is long, the TI
should also be long. Usually, the detection of an R-wave is
used to trigger the sequence. Consequently, the Trigger Delay
(TD), the time between an R-wave and the next echo train, is
the same as TI and the acquisition is performed during the mid-
diastolic rest. The problem is that the TD is constrained by TI
whereas it should only be used to select the cardiac phase to
acquire. Moreover, the optimum TI does not necessarily match
the mid-diastolic, nor end-systolic cardiac rest period . To
overcome these limitations, two methods are proposed to acquire
black blood images during the end-systolic rest. }
}