Why the study?
Does MR angiography (MRA) using CE or TOF techniques identify intraplaque hemorrhage in carotid plaque?
Does MR angiography (MRA) using CE or TOF techniques identify intraplaque hemorrhage in carotid plaque?
MRA using CE or TOF techniques has the potential to detect intraplaque hemorrhage in carotid atherosclerosis due to highly T1-weighted sequences.
MRA may support noninvasive IPH assessment in carotid disease; leaves open need for histologic validation before clinical adoption.
MR angiography (MRA) has become a standard workup for carotid atherosclerosis, using either contrast-enhanced (CE) or time-of-flight (TOF) techniques. This provides a measure of narrowing but does not identify plaque components that indicate risk of rupture, such as the presence of intraplaque hemorrhage (IPH). CE and TOF techniques employ highly T1-weighted 3D gradient-echo sequences, and have the potential to detect IPH because of T1 short blood products.
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Qiao et al. (2010) studied this question.
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