American Journal of Neuroradiology, Vol 12, Issue 1 19-24, Copyright © 1991 by American Society of Neuroradiology
ARTICLES |
Improved detection and delineation of head and neck lesions with fat suppression spin-echo MR imaging
RD Tien, JR Hesselink, PK Chu and J Szumowski
Department of Radiology, University of California, San Diego, Medical Center 92103.
To compare conventional and fat suppression MR imaging in their ability to detect head and neck lesions, we prospectively studied 17 patients with head and neck tumors and one normal volunteer. Five patients had benign tumors (one mixed cell tumor, one hemangioma, one lipoma, and two plexiform neurofibromas), 10 had malignant tumors (six squamous cell carcinomas, two minor salivary gland carcinomas, one lymphoma, and one malignant fibrous histiocytoma), and two had nonspecific lymphadenopathy. All subjects were studied with standard spin-echo T1- and T2-weighted images (T2-weighted imaging was done with and without fat suppression technique). In addition, T1-weighted images with contrast enhancement and fat suppression were obtained in nine patients. A four-point grading system was used for comparison of the conventional and fat suppression images. Grades ranged from 0 (unsatisfactory, the lesion cannot be seen) to 3 (excellent, the lesion and its margins can be seen clearly with sharp contrast from surrounding normal tissue). We found that postcontrast fat suppression T1-weighted images and fat suppression T2-weighted images were most useful; these sequences obtained an average score close to grade 3 (2.77 and 2.85, respectively). On the other hand, the conventional T2- weighted images had an average score of about 2 (1.82) and the conventional T1-weighted image had a score of about 1 (1.33). Fat suppression T2-weighted sequences generally were superior in cases of lymphadenopathies. Postcontrast T1-weighted images were most useful in a case of plexiform neurofibroma, owing to their fibrous component and lower proton density.(ABSTRACT TRUNCATED AT 250 WORDS)
This article has been cited by other articles:
 |
|
 |
|
  W. Galassi, W. Phuttharak, J. R. Hesselink, J. F. Healy, R. B. Dietrich, and S. G. Imbesi Intracranial Meningeal Disease: Comparison of Contrast-Enhanced MR Imaging with Fluid-Attenuated Inversion Recovery and Fat-Suppressed T1-Weighted Sequences AJNR Am. J. Neuroradiol., March 1, 2005; 26(3): 553 - 559. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Radiology Quiz Case 2--Diagnosis Arch Otolaryngol Head Neck Surg, August 1, 2004; 130(8): 999 - 999. [Full Text] [PDF]
|
|
|
|
 |
|
 K. Y. Lau, W. K. Kan, W. M. Sze, A. W.M. Lee, J. K.W. Chan, T. K. Yau, R. M. Yeung, L. Tan, P. O. Chan, and A. S.L. Lee Magnetic Resonance for T-staging of Nasopharyngeal Carcinoma--The Most Informative Pair of Sequences Jpn. J. Clin. Oncol., April 1, 2004; 34(4): 171 - 175. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Lam, K. M. Au-Yeung, P. W. Cheng, W. I. Wei, A. P.-W. Yuen, N. Trendell-Smith, J. H. C. Li, and R. Li Correlating MRI and Histologic Tumor Thickness in the Assessment of Oral Tongue Cancer Am. J. Roentgenol., March 1, 2004; 182(3): 803 - 808. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S Yamamoto, H Takano, K Motoori, T Ueda, M Ikeda, S Kimura, T Uno, S Yasuda, H Ito, R Hara, et al. Detection of nasopharyngeal carcinoma: fast short time inversion recovery images compared with fat suppression, contrast enhanced T1 weighted spin echo images Br. J. Radiol., September 1, 2001; 74(885): 805 - 810. [Abstract] [Full Text] [PDF]
|
|