AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lim, J. H.
Right arrow Articles by Kim, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Lim, J. H.
Right arrow Articles by Kim, S.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

Detection of Hepatocellular Carcinoma: Value of Adding Delayed Phase Imaging to Dual-Phase Helical CT

Jae Hoon Lim1, Dongil Choi1, Seung Hoon Kim1, Soon Jin Lee1, Won Jae Lee1, Hyo Keun Lim1 and Seonwoo Kim2

1 Department of Radiology, Samsung Medical Center, 50 Ilwon-dong, Kangnam-ku, Seoul, Korea 135-710.
2 Biostatistics Unit, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.



View larger version (14K):

[in a new window]
  		Fig. 1. —Graph shows composite receiver operating characteristic (ROC) curves for pooled data reviewed by three observers. Curves indicate relative accuracy with which hepatocellular carcinomas were detected on dual-phase helical CT ({circ}) (area under ROC curve [Az] = 0.954 ± 0.012) and triple-phase helical CT ({diamondsuit}) (Az = 0.793 ± 0.009). Difference in mean areas under curves was statistically significant (p<0.001).

 


View larger version (141K):

[in a new window]
  		Fig. 2A. —71-year-old man with 1.0-cm moderately differentiated hepatocellular carcinoma in liver segment IV. Arterial phase (A) and portal venous phase (B) hepatic CT images show no nodular lesions.

 


View larger version (155K):

[in a new window]
  		Fig. 2B. —71-year-old man with 1.0-cm moderately differentiated hepatocellular carcinoma in liver segment IV. Arterial phase (A) and portal venous phase (B) hepatic CT images show no nodular lesions.

 


View larger version (142K):

[in a new window]
  		Fig. 2C. —71-year-old man with 1.0-cm moderately differentiated hepatocellular carcinoma in liver segment IV. Delayed phase CT image shows fairly discrete hypoattenuating nodule (arrows).

 


View larger version (131K):

[in a new window]
  		Fig. 3A. —66-year-old woman with 1.2-cm well-differentiated hepatocellular carcinoma in liver segment IV. Arterial phase hepatic CT image shows no nodular lesion.

 


View larger version (118K):

[in a new window]
  		Fig. 3B. —66-year-old woman with 1.2-cm well-differentiated hepatocellular carcinoma in liver segment IV. On portal venous phase CT image, subtle lesion (arrows) is hardly seen.

 


View larger version (117K):

[in a new window]
  		Fig. 3C. —66-year-old woman with 1.2-cm well-differentiated hepatocellular carcinoma in liver segment IV. Delayed phase CT image shows discrete hypoattenuating nodule (arrows).

 


View larger version (153K):

[in a new window]
  		Fig. 4A. —62-year-old man with 1.2-cm dysplastic nodule in liver segment VII. Arterial phase hepatic CT image shows subtle hypoattenuating nodule (arrows).

 


View larger version (142K):

[in a new window]
  		Fig. 4B. —62-year-old man with 1.2-cm dysplastic nodule in liver segment VII. Portal venous phase (B) and delayed phase (C) CT images show discrete hypoattenuating nodules (arrows). All observers interpreted them as possible hepatocellular carcinoma (score, 3).

 


View larger version (151K):

[in a new window]
  		Fig. 4C. —62-year-old man with 1.2-cm dysplastic nodule in liver segment VII. Portal venous phase (B) and delayed phase (C) CT images show discrete hypoattenuating nodules (arrows). All observers interpreted them as possible hepatocellular carcinoma (score, 3).

 


View larger version (146K):

[in a new window]
  		Fig. 5A. —49-year-old man with 3.8-cm moderately differentiated hepatocellular carcinoma in liver segment VI. Arterial phase hepatic CT image shows hyperattenuating nodule (arrows).

 


View larger version (135K):

[in a new window]
  		Fig. 5B. —49-year-old man with 3.8-cm moderately differentiated hepatocellular carcinoma in liver segment VI. On portal venous phase image, nodule becomes nearly isoattenuating (arrows). This finding is interpreted as probable hepatocellular carcinoma (score, 5) by all observers on dual-phase helical CT.

 


View larger version (140K):

[in a new window]
  		Fig. 5C. —49-year-old man with 3.8-cm moderately differentiated hepatocellular carcinoma in liver segment VI. Delayed phase image shows discrete hypoattenuating nodule with subtle capsular enhancement (arrows). All observers interpreted nodule as definite hepatocellular carcinoma (score, 5) on triple-phase helical CT.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2002 by the American Roentgen Ray Society.