PT  - JOURNAL ARTICLE
AU  - Adam, G.
AU  - Darcourt, J.
AU  - Roques, M.
AU  - Ferrier, M.
AU  - Gramada, R.
AU  - Meluchova, Z.
AU  - Patsoura, S.
AU  - Viguier, A.
AU  - Cognard, C.
AU  - Larrue, V.
AU  - Bonneville, F.
TI  - Standard Diffusion-Weighted Imaging in the Brain Can Detect Cervical Internal Carotid Artery Dissections
AID  - 10.3174/ajnr.A6383
DP  - 2020 Feb 01
TA  - American Journal of Neuroradiology
PG  - 318--322
VI  - 41
IP  - 2
4099  - http://www.ajnr.org/content/41/2/318.short
4100  - http://www.ajnr.org/content/41/2/318.full
SO  - Am. J. Neuroradiol.2020 Feb 01; 41
AB  - BACKGROUND AND PURPOSE: The ICA is the most common site of cervical artery dissection. Prompt and reliable identification of the mural hematoma is warranted when a dissection is clinically suspected. The purpose of this study was to assess to capacity of a standard DWI sequence acquired routinely on the brain to detect dissecting hematoma related to cervical ICA dissections.MATERIALS AND METHODS: This was a retrospective study of a cohort of 110 patients younger than 55 years of age (40 women; mean age, 46.79 years) admitted at the acute phase of a neurologic deficit, headache, or neck pain and investigated by at least a standard 3T diffusion-weighted sequence of the brain. Among them were 50 patients (14 women; mean age, 46.72 years) with subsequently confirmed ICA dissection. In the whole anonymized cohort, both a senior and junior radiologist separately assessed, on the DWI sequences only, the presence of a crescent-shaped or circular hypersignal projecting on the subpetrosal segment of the ICA arteries, assuming that it would correspond to a mural hematoma related to an ICA dissection.RESULTS: The senior radiologist found 46 subpetrosal hyperintensities in 43/50 patients with ICA dissection and none in patients without dissection (sensitivity, 86%; specificity, 100%). The junior radiologist found 48 subpetrosal hyperintensities in 45/50 patients with dissection and none in patients without dissection (sensitivity, 90%; specificity, 100%).CONCLUSIONS: In our cohort, a standard DWI sequence performed on the brain at the acute phase of a stroke or for a clinical suspicion of dissection detected nearly 90% of cervical ICA dissections.FSfat-saturated