Optimal T1-weighted MR plaque imaging for cervical carotid artery stenosis in predicting development of microembolic signals during carotid dissection in endarterectomy.
Yuiko Sato 1 , Kuniaki Ogasawara 1 , Shinsuke Narumi 2 , Makoto Sasaki 3 , Ayumi Saito 2 , Takamasa Namba 1 , Masakazu Kobayasi 1 , Kenji Yoshida 1 , Yasuo Terayama 2 , and Akira Ogawa 1
Department of Neurosurgery, Iwate Medical
Univercity, Morioka, Iwate, Japan,
of Neurology and Gerontology, Iwate Medical Univercity,
Morioka, Iwate, Japan,
Division of Ultra-High
Field MRI and Department of Radiology, Iwate Medical
Univercity, Mrioka, Iwate, Japan
The purpose of the present study was to determine which
plaque imaging technique predicts more accurately
development of microembolic signals (MES) during carotid
dissection in carotid endarterectomy (CEA). Our results
demonstrated that non cardiac-gated spin echo (SE)
T1-weighted plaque imaging, which discriminated the
intraplaque characteristics with the contrast ratio of
the plaque signal to the sternomastoid muscle signal and
with the three component color-coded map, could predict
more accurately development of MES during carotid
dissection in CEA than other MR plaque imaging
techniques (black-blood fast SE, MPRAGE, the source
image of 3D-TOF MRA).
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