A contrast enhancement (CE) agent is infused into blood flowing through a
site that is to be imaged with magnetic resonance imaging (MRI). Two
double inversion procedures are carried out, forming a quadruple
inversion recovery (QIR) pulse sequence. Each double inversion procedure
comprises a non-selective and slice-selective inversion RF pulse. The
first double inversion procedure is followed by a first predefined
inversion delay period, TI.sub.1, and the second procedure by a second
predefined inversion delay period, TI.sub.2. A black-blood image can thus
be produced in which blood appears consistently black and tissues
surrounding the blood, such as a vessel wall, heart, atherosclerotic
plaque, or thrombus, are clearly visible. Unlike the prior art
black-blood imaging technique, the QIR method does not require a precise
knowledge of the T.sub.1 of the blood carrying the CE agent in order to
suppress the signal and artifacts caused by the blood flowing through the
site.