PT  - JOURNAL ARTICLE
AU  - H Tanioka
AU  - H Kaga
AU  - H Zusho
AU  - T Araki
AU  - Y Sasaki
TI  - MR of the endolymphatic duct and sac: findings in Menière disease.
DP  - 1997 Jan 01
TA  - American Journal of Neuroradiology
PG  - 45--51
VI  - 18
IP  - 1
4099  - http://www.ajnr.org/content/18/1/45.short
4100  - http://www.ajnr.org/content/18/1/45.full
SO  - Am. J. Neuroradiol.1997 Jan 01; 18
AB  - PURPOSE To compare the visibility of the endolymphatic duct and sac on high-resolution MR images with the symptoms and clinical course in patients with Menière disease.METHODS Twenty-two patients with unilateral Menière disease were sorted into two groups on the basis of the clinical stage of their disease at the time of imaging. Group 1 included patients in the acute phase, who presented with vertigo. Group 2 comprised patients in the nonacute phase of the disease, who were studied 9 days or more after an episode of vertigo.RESULTS During acute attacks, the endolymphatic duct and sac were not adequately visible in the affected ear but were visible in the unaffected ear. During remission, the endolymphatic duct and sac were not observed in clinically advanced patients, but they were seen in patients in the early and intermediate stages.CONCLUSION High-resolution MR imaging can be used to evaluate the endolymphatic duct and sac: visible abnormalities and lack of a visible endolymphatic duct and sac correlate with the clinical course of Menière disease.