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Screening for Cerebellopontine Angle Tumours: Conventional MRI vs T2 Fast Spin Echo MRI

Published online by Cambridge University Press:  02 March 2017

Joseph C. Dort ,
David Sadler ,
William Hu ,
Carla Wallace ,
Pierre La Forge  and
Robert Sevick
Joseph C. Dort*
Affiliation:
Departments of Surgery (Otolaryngology), University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada
David Sadler
Affiliation:
Radiology, University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
William Hu
Affiliation:
Radiology, University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada
Carla Wallace
Affiliation:
Radiology, University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada
Pierre La Forge
Affiliation:
Radiology, University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
Robert Sevick
Affiliation:
Radiology, University of Calgary, Calgary, Alberta, Canada Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada
*
3330 Hospital Dr. N.W., Calgary, AB, Canada T2N 4N1
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Abstract:

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Background:

Unilateral audiovestibular symptoms are commonly seen in clinical practice and are rarely caused by retrocochlear pathology. However, clinicians are often required to rule out potentially serious causes of these unilateral symptoms. Gadolinium enhanced magnetic resonance imaging (GdMRI) is the most accurate test for detecting small cerebellopontine angle lesions and also screens the adjacent CNS structures. Its main disadvantage is the cost of the procedure.

Methods:

We studied 100 consecutive patients with both GdMRI and a newer MRI screening study utilizing unenhanced T2-weighted fast spin echo (fse) MRI. Acquired images were randomly assessed by a panel of three neuro-radiologists.

Results:

We found that the screening (fse) MRI was as sensitive and specific when detecting cerebellopontine angle tumors.

Conclusions:

We conclude that T2-weighted fse MRI is a safe and cost-effective alternative to GdMRI and offers better diagnostic utility when compared to auditory brain stem response (ABR) and CT scans.

Résumé:

RÉSUMÉ:Introduction:

Des symptômes audiovestibulaires unilatéraux sont fréquemment observés en pratique clinique et sont rarement causés par une pathologie rétrocochléaire. Cependant, les cliniciens doivent souvent éliminer la possibilité que la cause de ces symptômes unilatéraux ne soit sérieuse. L'imagerie par résonance magnétique avec rehaussement par le gadolinium (GD-RMN) est l'examen le plus précis pour détecter les petites lésions de l'angle pontocérébelleux et également pour visionner les structures adjacentes du SNC. Son principal inconvénient est son coût.

Méthodes:

Nous avons étudié 100 patients consécutifs au moyen de la GD-RMN et une nouvelle technique de dépistage par RMN, la RMN écho de spin rapide T2 sans rehaussement (ésr). Les images acquises ont été évaluées au hasard par un groupe de trois neuroradiologistes.

Résultats:

Nous avons constaté que le dépistage par RMN (ésr) était aussi sensible et spécifique pour détecter les tumeurs de l'angle pontocérébelleux.

Conclusions:

Nous concluons que la RMN (ésr) est une alternative sûre et économique à la GD-RMN et comporte des avantages diagnostiques par rapport aux potentiels évoqués auditifs du tronc cérébral et à la tomodensitométrie cérébrale.

Type
Original Article
Information
Canadian Journal of Neurological Sciences , Volume 28 , Issue 1 , February 2001 , pp. 47 - 50
Copyright
Copyright © The Canadian Journal of Neurological 2001

References

REFERENCES

1. Raber, E, Dort, JC, Sevick, R, Winkelaar, R. Asymmetric hearing loss: toward cost-effective diagnosis. J Otolaryngo 1997; 26(2):88–91.Google ScholarPubMed
2. Robson, AK, Leighton, SE, Anslow, P Milford, CA. MRI as a single screening procedure for acoustic neuroma: a cost effective protocol [see comments]. J R Soc Med 1993; 86(8):455–457.CrossRefGoogle ScholarPubMed
3. Han, MH, Jabour, BA, Andrews, JC, et al. Nonneoplastic enhancing lesions mimicking intracanalicular acoustic neuroma on gadolinium-enhanced MR images. Radiology 1991; 179:795–796.CrossRefGoogle ScholarPubMed
4. Allen, RW, Harnsberger, HR, Shelton, C, et al. Low-cost high resolution fast spin echo MR of acoustic schwannoma: an alternative to enhanced conventional spin-echo MR? Am J Neuroradiol 1996; 17:1205–1210.Google ScholarPubMed
5. Shelton, C, Harnsberger, HR, Allen, R, King, B. Fast spin echo magnetic resonance imaging: clinical application in screening for acoustic neuroma. Otolaryngol Head Neck Surg 1996; 114(1):71–76.CrossRefGoogle ScholarPubMed
6. Stuckey, SL, Harris, AJ, Mannolini, SM. Detection of acoustic schwannoma: use of constructive interference in the steady state three-dimensional MR. Am J Neuroradiol 1996; 17:1219–1225.Google ScholarPubMed
7. Gordon, ML, Cohen, NL. Efficacy of auditory brainstem response as a screening test for small acoustic neuromas. Am J Otol 1995; 16(2):136–139.Google ScholarPubMed
8. House, JL, Tubergen, LB, Burt, M. Current diagnosis of acoustic tumors. Indiana Med 1989; 89(9):706–709.Google Scholar
9. Hashimoto, S, Kawase, T, Furukawa, K, Takasaka, T. Strategy for the diagnosis of small acoustic neuromas. Acta Otolaryngol Suppl 1991; 91;481:567.CrossRefGoogle Scholar
10. Welling, DB, Glasscock, ME, Woods, CI, Jackson, CG. Acoustic neuroma: a cost-effective approach. Otolaryngol Head Neck Surg 1990; 103:364–370.CrossRefGoogle ScholarPubMed
11. Frazer, GJ. Auditory brainstem response audiometry and acoustic neuromas. Am J Otol 1997; 18(1):126–128.Google ScholarPubMed
12. Frohlich, AM, Sutherland, GR. Epidemiology and clinical features of vestibular schwannoma in Manitoba, Canada. Can J Neurol Sci 1993; 20(2):126–130.CrossRefGoogle ScholarPubMed
13. Phelps, PD. Fast spin echo MRI in otology. J Laryngol Otol 1994; 108(5):383–394.CrossRefGoogle ScholarPubMed
14. Renowden, SA, Anslow, P. The effective use of magnetic resonance imaging in the diagnosis of acoustic neuromas. Clin Radiol 1993; 48(1):25–28.CrossRefGoogle ScholarPubMed
15. Allen, RW, Harnsberger, HR, Shelton, C, et al. Low-cost high-resolution fast spin echo MR of acoustic schwannoma: an alternative to enhanced conventional spin-echo MR? Am J Neuroradiol 1996; 17:1205–1210.Google ScholarPubMed
16. Daniels, RL, Shelton, C, Harnsberger, HR. Ultra high resolution nonenhanced fast spin echo magnetic resonance imaging: cost-effective screening for acoustic neuroma in patients with sudden sensorineural hearing loss. Otolaryngol Head Neck Surg 1998; 119(4):364–369.CrossRefGoogle ScholarPubMed
17. Soulie, D, Cordoliani, YS, Vignaud, J, Cosnard, G. MR imaging of acoustic neuroma with high resolution fast spin echo T2-weighted sequence. Eur J Radiol 1997; 24(1):61–65.CrossRefGoogle ScholarPubMed
18. Tan, TY. Noncontrast high resolution fast spin echo magnetic resonance imaging of acoustic schwannoma. Singapore Med J 1999; 40(1):27–31.Google ScholarPubMed
19. Jackler, RK. Cost-effective screening for acoustic neuroma with unenhanced MR: a clinician’s perspective. Am J Neuroradiol 1996; 17:1226–1228.Google Scholar
20. Wilson, DF, Talbot, JM, Mills, L. A critical appraisal of the role of auditory brain stem response and magnetic resonance imaging in acoustic neuroma diagnosis. Am J Otol 1997; 18(5):673–681.Google ScholarPubMed
21. Don, M, Masuda, A, Nelson, R, Brackmann, D. Successful detection of small acoustic tumors using the stacked derived-band auditory brain stem response amplitude. Am J Otol 1997; 18(5):608–621.Google ScholarPubMed