MR imaging of the oropharynx and tongue: comparison of plain and Gd-DTPA studies.
The effect of intravenously administered gadolinium-diethylene-triamine pentaacetic acid (Gd-DTPA) on signal intensity in comparison to plain noncontrast imaging was analyzed. Sixty-one patients with diseases of the oropharynx and tongue base were examined using multiplanar magnetic resonance (MR) imaging. The contrast medium Gd-DTPA was administered in 26 cases. Thirty-eight patients also underwent CT. Forty-one patients had surgery and pathological verification. Plain MR imaging was equal or superior to CT in all except one patient. Marked contrast enhancement produced by Gd-DTPA was observed in carcinomas, sarcomas, inflamed salivary glands, and in normal pharyngeal mucosa. The usefulness of Gd-DTPA may be increased by measuring the enhancement in signal intensity versus time to allow a better differentiation of histological features.
Vogl
T
T
Department of Radiology, University of Munich, Klinikum Grosshadern, F.R.G.
Brüning
R
R
Grevers
G
G
Mees
K
K
Bauer
M
M
Lissner
J
J
D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D009942:Organometallic Compounds; D009960:Oropharynx / Q000473:pathology*; D004369:Pentetic Acid; D010608:Pharyngeal Diseases / Q000175:diagnosis*; D010610:Pharyngeal Neoplasms / Q000175:diagnosis; D014060:Tongue Diseases / Q000175:diagnosis*; D014062:Tongue Neoplasms / Q000175:diagnosis
D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA