HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sultana, S. Articles by Yamashita, Y. Search for Related Content PubMed PubMed Citation Articles by Sultana, S. Articles by Yamashita, Y.

Hypervascular Hepatocellular Carcinomas: Bolus Tracking with a 40-Detector CT Scanner to Time Arterial Phase Imaging¹

¹ From the Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-2 Honjyo, Kumamoto 860-8556, Japan. Received January 13, 2006; revision requested March 10; revision received April 25; accepted May 31; final version accepted August 1. Address correspondence to K.A.

View larger version (24K): [in this window] [in a new window] [Download PPT slide]   Figure 1: Histogram shows distribution of times required to reach the trigger threshold in patients. Mean interval was 19.4 seconds ± 3.4 (range, 12–34 seconds).

View larger version (17K): [in this window] [in a new window] [Download PPT slide]   Figure 2: Aortic enhancement values for five scan protocols, shown as means ± SDs. Multiple comparisons were performed with the Dunnett method; enhancement values for protocol A served as the control.

View larger version (17K): [in this window] [in a new window] [Download PPT slide]   Figure 3: Liver enhancement values for five scan protocols, shown as means ± SDs. Multiple comparisons were performed with the Dunnett method; enhancement values for protocol A served as the control.

View larger version (18K): [in this window] [in a new window] [Download PPT slide]   Figure 4: Portal vein enhancement values for five scan protocols, shown as means ± SDs. Multiple comparisons were performed with the Dunnett method; enhancement values for protocol A served as the control.

View larger version (15K): [in this window] [in a new window] [Download PPT slide]   Figure 5: TLC values for five scan protocols, shown as means ± SDs. Multiple comparisons were performed with the Dunnett method; TLC values for protocol A served as the control.

View larger version (113K): [in this window] [in a new window] [Download PPT slide]   Figure 6a: (a) Transverse CT image at level of left portal vein in a 64-year-old man with HCC, scanned according to protocol A. TLC in this patient was 27.6 HU (mean TLC for protocol A, 23.4 HU). (b) Transverse CT image at level of left portal vein in a 69-year-old man with HCC, scanned according to protocol B. TLC in this patient was 38.2 HU (mean TLC for protocol B, 35.5 HU). (c) Transverse CT image at level of porta hepatis in a 64-year-old man with HCC, scanned according to protocol C. TLC in this patient was 33.3 HU (mean TLC for protocol C, 36.2 HU). (d) Transverse CT image at level of porta hepatis in a 58-year-old man with HCC, scanned according to protocol D. TLC in this patient was 53.2 HU (mean TLC for protocol D, 47.2 HU). (e) Transverse CT image at level of superior pole of left kidney in a 62-year-old woman with HCC, scanned according to protocol E. TLC in this patient was 36.4 HU (mean TLC for protocol E, 35.1 HU). Arrow in a–e indicates hypervascular HCC.

View larger version (108K): [in this window] [in a new window] [Download PPT slide]   Figure 6b: (a) Transverse CT image at level of left portal vein in a 64-year-old man with HCC, scanned according to protocol A. TLC in this patient was 27.6 HU (mean TLC for protocol A, 23.4 HU). (b) Transverse CT image at level of left portal vein in a 69-year-old man with HCC, scanned according to protocol B. TLC in this patient was 38.2 HU (mean TLC for protocol B, 35.5 HU). (c) Transverse CT image at level of porta hepatis in a 64-year-old man with HCC, scanned according to protocol C. TLC in this patient was 33.3 HU (mean TLC for protocol C, 36.2 HU). (d) Transverse CT image at level of porta hepatis in a 58-year-old man with HCC, scanned according to protocol D. TLC in this patient was 53.2 HU (mean TLC for protocol D, 47.2 HU). (e) Transverse CT image at level of superior pole of left kidney in a 62-year-old woman with HCC, scanned according to protocol E. TLC in this patient was 36.4 HU (mean TLC for protocol E, 35.1 HU). Arrow in a–e indicates hypervascular HCC.

View larger version (120K): [in this window] [in a new window] [Download PPT slide]   Figure 6c: (a) Transverse CT image at level of left portal vein in a 64-year-old man with HCC, scanned according to protocol A. TLC in this patient was 27.6 HU (mean TLC for protocol A, 23.4 HU). (b) Transverse CT image at level of left portal vein in a 69-year-old man with HCC, scanned according to protocol B. TLC in this patient was 38.2 HU (mean TLC for protocol B, 35.5 HU). (c) Transverse CT image at level of porta hepatis in a 64-year-old man with HCC, scanned according to protocol C. TLC in this patient was 33.3 HU (mean TLC for protocol C, 36.2 HU). (d) Transverse CT image at level of porta hepatis in a 58-year-old man with HCC, scanned according to protocol D. TLC in this patient was 53.2 HU (mean TLC for protocol D, 47.2 HU). (e) Transverse CT image at level of superior pole of left kidney in a 62-year-old woman with HCC, scanned according to protocol E. TLC in this patient was 36.4 HU (mean TLC for protocol E, 35.1 HU). Arrow in a–e indicates hypervascular HCC.

View larger version (112K): [in this window] [in a new window] [Download PPT slide]   Figure 6d: (a) Transverse CT image at level of left portal vein in a 64-year-old man with HCC, scanned according to protocol A. TLC in this patient was 27.6 HU (mean TLC for protocol A, 23.4 HU). (b) Transverse CT image at level of left portal vein in a 69-year-old man with HCC, scanned according to protocol B. TLC in this patient was 38.2 HU (mean TLC for protocol B, 35.5 HU). (c) Transverse CT image at level of porta hepatis in a 64-year-old man with HCC, scanned according to protocol C. TLC in this patient was 33.3 HU (mean TLC for protocol C, 36.2 HU). (d) Transverse CT image at level of porta hepatis in a 58-year-old man with HCC, scanned according to protocol D. TLC in this patient was 53.2 HU (mean TLC for protocol D, 47.2 HU). (e) Transverse CT image at level of superior pole of left kidney in a 62-year-old woman with HCC, scanned according to protocol E. TLC in this patient was 36.4 HU (mean TLC for protocol E, 35.1 HU). Arrow in a–e indicates hypervascular HCC.

View larger version (101K): [in this window] [in a new window] [Download PPT slide]   Figure 6e: (a) Transverse CT image at level of left portal vein in a 64-year-old man with HCC, scanned according to protocol A. TLC in this patient was 27.6 HU (mean TLC for protocol A, 23.4 HU). (b) Transverse CT image at level of left portal vein in a 69-year-old man with HCC, scanned according to protocol B. TLC in this patient was 38.2 HU (mean TLC for protocol B, 35.5 HU). (c) Transverse CT image at level of porta hepatis in a 64-year-old man with HCC, scanned according to protocol C. TLC in this patient was 33.3 HU (mean TLC for protocol C, 36.2 HU). (d) Transverse CT image at level of porta hepatis in a 58-year-old man with HCC, scanned according to protocol D. TLC in this patient was 53.2 HU (mean TLC for protocol D, 47.2 HU). (e) Transverse CT image at level of superior pole of left kidney in a 62-year-old woman with HCC, scanned according to protocol E. TLC in this patient was 36.4 HU (mean TLC for protocol E, 35.1 HU). Arrow in a–e indicates hypervascular HCC.