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• Clinical Article •
Evaluation of the role of 3D-T2-DRIVE combining 3D TOF MRA in diagnosing microvascular compression for facial-acoustic nerves
PAN Xi-min  HU Mei-yu  PAN Bi-tao  JIANG Bo 

DOI:10.12015/issn.1674-8034.2016.11.007.


[Abstract] Objective: To evaluate the application value of 3D-T2-DRIVE combining 3D TOF MRA in detecting microvascular compression for facial-acoustic nerves.Materials and Methods: Thirty-six patients were enrolled in the study with clinically suspected vascular compression of facial-acoustic nerves, of which both 3D-T2-DRIVE and 3D TOFMRA sequences images were obtained of isotropy and identical voxel size. Source images and reformatted images were observed to evaluate the effects on demonstration of facial-acoustic nerves and culprit vessels, which was scored from 0 to 3 points in the order from poor to excellent. The differences were compared of effects on displaying both the facial-acoustic nerves and culprit vessels among the three approaches of 3D-T2-DRIVE, 3D TOFMRA, and 3D-T2-DRIVE+3D TOFMRA. The Kruskal-Wallis H test was employed in data processing, with P<0.01 for the statistically significant difference.Results: In displaying facial-acoustic nerves, 3D-T2-DRIVE+3D TOFMRA and T2-3D-DRIVE were superior to 3D TOFMRA (H=58.78, P=0.0000. H=53.18, P=0.0000. respectively), and no statistically significant difference existed between 3D-T2-DRIVE+3D TOFMRA and T2-3D-DRIVE (H=2.28, P=0.1313). In displaying culprit vessels, 3D-T2-DRIVE+3D TOFMRA was superior to T2-3D-DRIVE and 3D TOFMRA (H=54.12, P=0.0000. H=62.42, P=0.0000. respectively), and no statistically significant difference existed between 3D-T2-DRIVE and 3D TOFMRA (H=0.0083, P=0.9274). Of 36 patients, 32 were detected with arteriolar compression for facial-acoustic nerves by the approach of 3D-T2-DRIVE combining 3D TOFMRA, and 4 with no compression. The results were confirmed by surgical findings or clinical follow-up, respectively. The sensitivity and specificity was 100%, 100% of 3D-T2-DRIVE+3D TOFMRA in diagnosing microvascular compression for facial-acoustic nerves, respectively.Conclusions: The approach of 3D-T2-DRIVE combining 3D TOF MRA provides an precise and accurate diagnosis of micorvascular compression for facial-acoustic nerves.
[Keywords] Magnetic resonance imaging；Cranial nerves；Facial nerve；Microvascular decompression surgery

PAN Xi-min Department of Radiology, East Hospital, Sun Yat Sen University First Affiliated Hospital, Guangzhou 510700, China

HU Mei-yu Department of Radiology, East Hospital, Sun Yat Sen University First Affiliated Hospital, Guangzhou 510700, China

PAN Bi-tao Department of Clinical Diagnostic Radiology, Sun Yat Sen University First Affiliated Hospital, Guangzhou 510080, China

JIANG Bo* Department of Radiology, East Hospital, Sun Yat Sen University First Affiliated Hospital, Guangzhou 510700, China; Department of Clinical Diagnostic Radiology, Sun Yat Sen University First Affiliated Hospital, Guangzhou 510080, China

*Correspondence to: Jiang B, E-mail: csujbo@163.com

Conflicts of interest   None.

Received  2016-09-11
Accepted  2016-10-13
DOI: 10.12015/issn.1674-8034.2016.11.007
DOI:10.12015/issn.1674-8034.2016.11.007.

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