PMID: 9421652Jan 9, 1998Paper

MRI of the hypopharynx with provocative maneuvers

Clinical Imaging
P HeldV Bonkowsky

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.

References

Nov 1, 1992·Journal of Computer Assisted Tomography·J C McGowanH Y Kressel
Mar 1, 1981·AJR. American Journal of Roentgenology·G GamsuA A Moss
Jun 1, 1981·Journal of Computer Assisted Tomography·G GamsuW R Webb

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Citations

Sep 17, 2003·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Philippe HenrotJacques Roland

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