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AJR 2005; 184:1194-1198
© American Roentgen Ray Society

Technical Innovation

Vascular Virtual Endoluminal Visualization of Invasive Colorectal Cancer on MDCT Colonography

Gen Iinuma1, Noriyuki Moriyama1, Mitsuo Satake2, Kunihisa Miyakawa2, Ukihide Tateishi2, Nachiko Uchiyama1, Takayuki Akasu3, Takahiro Fujii4 and Toshiaki Kobayashi5

1 Cancer Screening Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
2 Diagnostic Radiology Division, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan.
3 Colorectal Surgery Division, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan.
4 Endoscopy Division, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan.
5 Cancer Screening Technology Division, Research Center Cancer for Prevention and Screening, National Cancer Center, Chuo-ku, Tokyo, Japan.

OBJECTIVE. The purpose of this study was to assess the utility of vascular views for visualization of invasive colorectal cancers on contrast-enhanced MDCT colonography.

CONCLUSION. By means of Hounsfield-transparency settings, we obtained virtual endoluminal images that show vascular structures and delineate invasive cancers of the colorectal wall, and we call these images "vascular views." Using this technique for contrast-enhanced MDCT colonography, we found that the increase in flow and pooling of blood related to angiogenesis of cancerous lesions is easy to identify and that this finding is useful in the detection of invasive colorectal cancers.


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