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Thin-Slice MDCT of the Neck: Impact on Cancer Staging

Michael M. Lell1,2, Christian Gmelin2, Christoph Panknin1,3, Karin T. Eckel4, Matthias Schmid4, Werner A. Bautz2 and Holger Greess2

1 Department of Radiological Sciences, David Geffen School of Medicine at UCLA, Peter V. Ueberroth Bldg., Ste. 3371, 10945 LeConte Ave., Los Angeles, CA 90095.
2 Department of Radiology, University Erlangen-Nuremberg, Erlangen, Germany.
3 Siemens Medical Solutions, Forchheim, Germany.
4 Department of Medical Informatics, Biometry, and Epidemiology, University Erlangen-Nuremberg, Erlangen, Germany.


Figure 1
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  		Fig. 1A —Correctly classified tumors (black) and misclassified tumors (white) according to histopathologic results. Graphs show results of reader A using multiplanar reformation (MPR) (A), reader B using MPR (B), reader A using 3-mm axial MDCT images (C), and reader B using 3-mm axial MDCT images (D).

 

Figure 2
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  		Fig. 1B —Correctly classified tumors (black) and misclassified tumors (white) according to histopathologic results. Graphs show results of reader A using multiplanar reformation (MPR) (A), reader B using MPR (B), reader A using 3-mm axial MDCT images (C), and reader B using 3-mm axial MDCT images (D).

 

Figure 3
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  		Fig. 1C —Correctly classified tumors (black) and misclassified tumors (white) according to histopathologic results. Graphs show results of reader A using multiplanar reformation (MPR) (A), reader B using MPR (B), reader A using 3-mm axial MDCT images (C), and reader B using 3-mm axial MDCT images (D).

 

Figure 4
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  		Fig. 1D —Correctly classified tumors (black) and misclassified tumors (white) according to histopathologic results. Graphs show results of reader A using multiplanar reformation (MPR) (A), reader B using MPR (B), reader A using 3-mm axial MDCT images (C), and reader B using 3-mm axial MDCT images (D).

 

Figure 5
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  		Fig. 2A —54-year-old woman with squamous cell carcinoma of soft palate. Because of beam-hardening artifacts and partial volume effects, this lesion (arrow) was detectable only on single 3-mm axial MDCT image.

 

Figure 6
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  		Fig. 2B —54-year-old woman with squamous cell carcinoma of soft palate. Multiplanar reformation image in coronal plane improves tumor (arrow) delineation.

 

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