Radiologic Detectability of Minute Portal Venous Invasion in Hepatocellular Carcinoma
Akihiro Nishie1,
Kengo Yoshimitsu1,
Yoshiki Asayama1,
Hiroyuki Irie1,
Tsuyoshi Tajima1,
Masakazu Hirakawa1,
Kousei Ishigami1,
Tomohiro Nakayama1,
Daisuke Kakihara1,
Yunosuke Nishihara2,
Akinobu Taketomi3 and
Hiroshi Honda1
1 Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu
University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
2 Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu
University, Higashi-ku, Fukuoka, Japan.
3 Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu
University, Higashi-ku, Fukuoka, Japan.
View larger version (10K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1 —Drawing shows shapes of areas of peritumoral hemodynamic change.
Three types of area of peritumoral hemodynamic change were as follows: a,
wedge-shaped area of peritumoral hemodynamic change with straight boundary
that continues toward peripheral portion from lateral side of tumor; b,
belt-shaped or irregular area of peritumoral hemodynamic change around tumor;
and c, linear area of peritumoral hemodynamic change projecting toward
peripheral portion.
|
|
View larger version (74K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2A —70-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 2.5 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 73.9%.
First-phase CT hepatic arteriography image reveals strongly enhanced area
suggestive of tumor itself at dome of right lobe. Wedge-shaped minimally
enhanced area (arrow) is also seen. Another wedge-shaped enhanced
area, seen in B, is not observed (arrowhead).
|
|
View larger version (76K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2B —70-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 2.5 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 73.9%.
Second-phase CT hepatic arteriography image reveals increase in enhancement of
wedge-shaped area (arrow) shown in A. Another wedge-shaped
enhanced area (arrowhead) is also visualized.
|
|
View larger version (68K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2C —70-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 2.5 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 73.9%. CT
arterioportography image shows focal portal perfusion defects (arrow
and arrowhead) that are equivalent to two wedge-shaped enhanced areas
seen in A and B.
|
|
View larger version (127K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3A —82-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 3.2 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 99.6%.
First-phase CT hepatic arteriography image shows strongly enhanced area
suggestive of tumor itself in right lobe. Belt-shaped (arrow) and
linear (arrowhead) minimally enhanced areas are visualized.
|
|
View larger version (125K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3B —82-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 3.2 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 99.6%.
Second-phase CT hepatic arteriography image reveals increase in enhancement of
belt-shaped (arrow) and linear (arrowhead) enhanced
areas.
|
|
View larger version (118K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3C —82-year-old man with moderately differentiated hepatocellular
carcinoma (group 1) with maximal diameter of 3.2 cm. Ratio of volume of area
of peritumoral hemodynamic change to tumor volume was quantitatively 99.6%. CT
arterioportography image shows focal portal perfusion defects that are
equivalent to belt-shaped (arrow) and linear (arrowhead)
enhanced areas seen in A and B.
|
|
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
Copyright © 2008 by the American Roentgen Ray Society.
