MRI Technique for the Detection of Acoutic Neuroma.
- Author:
Sung Won CHAE
1
;
Myung Gyu KIM
;
Jin Ho CHOI
;
Soon Jae HWANG
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Acoustic neuroma
- MeSH:
Acoustics;
Fourier Analysis;
Humans;
Magnetic Resonance Imaging*;
Mortality;
Neuroma*;
Neuroma, Acoustic;
Treatment Outcome
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2000;43(5):488-492
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The mortality and morbidity associated with the surgery of acoustic neuroma (schwannoma) are intimately related to the tumor size. Therefore, early detection of acoustic neuroma greatly influences the postoperative result. The unsatisfactory resolution of the conventional 2-dimensional Fourier transformation spin-echo (2 DFT spin echo) technique hinders early detection and identification of the nerve tumors. However, the 3-dimensional Fourier transformation constructive interference in steady state (3 DFT CISS) and 3-dimensional magnetization-prepared rapid gradient echo (3D MP-RAGE) allows 3 dimensional re- construction and identification of small tumors below 1 mm in size. The authors attempted to determine whether CISS and MP-RAGE techniques are appropriate methods for detection of acoustic neuroma, by imaging the internal acoustic meatus and tumor in two acoustic neuroma patients. The authors believe that complementary utilization of the two techniques will enable early detection of acoustic neuroma and improve treatment outcome.
