Abstract
The purpose of this study was to assess the validity of magnetic resonance (MR) functional
images of the hypopharynx. Following T2-weighted spin-echo sequences during quiet
respiration, contrast enhanced 2D-Turbo-FLASH sequences were obtained during Valsalva-maneuver,
quiet respiration, A- and U-phonation, respectively. Tumor detection was clearly improved
using functional MRI (sensitivity of 97.4%, specificity 83.3%, accuracy 95.5%) when
compared with MRI during quiet respiration (sensitivity of 87.1%, specificity 33.3%,
accuracy 80%). Rapid MR sequences such as 2D-Turbo FLASH allow functional imaging
of the hypopharynx, thereby improving MR diagnosis of hypopharyngeal tumors.
Keywords
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Article info
Publication history
Accepted:
March 1,
1996
Received:
January 1,
1996
Identification
Copyright
© 1998 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
