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Turbo Short {tau} Inversion Recovery Imaging for Metastatic Node Screening in Patients with Head and Neck Cancer

Y. Kawaia, M. Sumia and T. Nakamuraa

a From the Department of Radiology and Cancer Biology, Nagasaki University School of Dentistry, Nagasaki, Japan


Figure 1
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  		Fig 1. Schematic drawing of classification of cervical lymph nodes into 3 neck levels (I–III). Details are explained in the "Materials and Methods" section. SMG, submandibular gland.


Figure 2
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  		Fig 2. A 74-year-old man with oral floor cancer. Comparison of turbo STIR images obtained by different TEs. A, Coronal turbo STIR image (TR/TE/TI/NSA/turbo factor = 3850 ms/80 ms/180 ms/2/16) shows metastatic node (arrow) at level I. Benign node is noted on ipsilateral side at same neck level (arrowhead).

B, Coronal turbo STIR image (TR/TE/TI/NSA/turbo factor = 3850 ms/20 ms/180 ms/1/5) shows same metastatic node (arrow) as in A. Similar results were obtained by using these techniques.


Figure 3
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  		Fig 3. A 64-year-old woman with tongue cancer. A, Coronal turbo STIR image (TR/TE/TI/NSA/turbo factor = 3850 ms/80 ms/180 ms/2/16) shows metastatic node (arrow) at neck level I. The metastatic node is 10 mm in short axis diameter and contains high-intensity necrotic area.

B, Reversed coronal turbo STIR image of A.


Figure 4
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  		Fig 4. A 56-year-old man with nasopharyngeal cancer. A, Coronal turbo STIR image (TR/TE/TI/NSA/turbo factor = 3850 ms/80 ms/180 ms/2/16) shows 3 metastatic nodes with necrotic foci at level II (arrows). Two metastatic nodes (12 mm [top] and 14 mm [bottom]) are on the left side of the neck, and 1 node (17 mm) on the right side.

B, Reversed coronal turbo STIR image of A.


Figure 5
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  		Fig 5. A 71-year-old man with laryngeal cancer. A, Coronal turbo STIR image (TR/TE/TI/NSA/turbo factor = 3850 ms/80 ms/180 ms/2/16) shows a metastatic node (11 mm) with central nodal necrosis at neck level III (arrow). B, Reversed coronal turbo STIR image of A.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X