| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Radiology, Vol 201, 321-326, Copyright © 1996 by Radiological Society of North America
ARTICLES |
L Kopka, J Rodenwaldt, U Fischer, DW Mueller, JW Oestmann and E Grabbe
Department of Radiology, University Hospital of Goettingen, Germany.
PURPOSE: To evaluate the effects of tracking and volume of contrast material on dual-phase helical computed tomography (CT) of the liver. MATERIALS AND METHODS: CT was performed in 120 consecutive patients. Either 100 mL (groups 1 and 2) or 120 mL (groups 3 and 4) of contrast material was injected at a rate of 4 mL/sec. In groups 1 and 3, the scanning delay was fixed, whereas in groups 2 and 4, scanning delays were determined individually by means of a semiautomatic bolus tracking device. The arterial phase began when splenic enhancement was greater than 10 HU and ended when hepatic enhancement was greater than 20 HU, which characterized the start of the portal venous phase. RESULTS: The mean duration of the arterial phase was 11.6 (100 mL) and 12.2 seconds (120 mL). The arterial phase of the liver within the defined limits was sufficiently timed in only 16 (54%) patients in group 1, 25 (83%) in group 2, and 20 (67%) in groups 3, whereas it was significantly (P < .05) better in 28 (93%) patients in group 4. A significantly (P < .05) higher mean parenchymal enhancement in the portal venous phase (63.6 HU +/- 8.5) was obtained in group 4. CONCLUSION: Bolus tracking of a volume of 120 mL provided the most accurate results in dual-phase liver CT.
This article has been cited by other articles:
|
|
 |
|
  L. L. Chu, B. N. Joe, A. C. A. Westphalen, E. M. Webb, F. V. Coakley, and B. M. Yeh Patient-specific Time to Peak Abdominal Organ Enhancement Varies with Time to Peak Aortic Enhancement at MR Imaging Radiology, December 1, 2007; 245(3): 779 - 787. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Y. J. Kim, S. S. Raman, N. C. Yu, K. J. To'o, R. Jutabha, and D. S. K. Lu Esophageal Varices in Cirrhotic Patients: Evaluation with Liver CT Am. J. Roentgenol., January 1, 2007; 188(1): 139 - 144. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M.-J. Kim, J. Y. Choi, J. S. Lim, J. Y. Kim, J. H. Kim, Y. T. Oh, E. H. Yoo, J. J. Chung, and K. W. Kim Optimal scan window for detection of hypervascular hepatocellular carcinomas during MDCT examination. Am. J. Roentgenol., July 1, 2006; 187(1): 198 - 206. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Ichikawa, H. Nakajima, A. Nanbu, M. Hori, and T. Araki Effect of Injection Rate of Contrast Material on CT of Hepatocellular Carcinoma. Am. J. Roentgenol., May 1, 2006; 186(5): 1413 - 1418. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M.-J. Kim, Y. E. Chung, K. W. Kim, J.-J. Chung, J. S. Lim, Y. T. Oh, and J. H. Kim Variation of the Time to Aortic Enhancement of Fixed-Duration Versus Fixed-Rate Injection Protocols Am. J. Roentgenol., January 1, 2006; 186(1): 185 - 192. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Li, B.-w. Dong, X.-l. Yu, X.-h. Wang, and C.-f. Li Time-Intensity-Based Quantification of Vascularity With Single-Level Dynamic Contrast-Enhanced Ultrasonography: A Pilot Animal Study J. Ultrasound Med., July 1, 2005; 24(7): 975 - 983. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Mori, H. Yoshioka, N. Takahashi, M. Yamaguchi, T. Ueno, T. Yamaki, and Y. Saida Triple Arterial Phase Dynamic MRI with Sensitivity Encoding for Hypervascular Hepatocellular Carcinoma: Comparison of the Diagnostic Accuracy Among the Early, Middle, Late, and Whole Triple Arterial Phase Imaging Am. J. Roentgenol., January 1, 2005; 184(1): 63 - 69. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Cademartiri, K. Nieman, A. van der Lugt, R. H. Raaijmakers, N. Mollet, P. M. T. Pattynama, P. J. de Feyter, and G. P. Krestin Intravenous Contrast Material Administration at 16-Detector Row Helical CT Coronary Angiography: Test Bolus versus Bolus-tracking Technique Radiology, December 1, 2004; 233(3): 817 - 823. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S Fenchel, T R Fleiter, A J Aschoff, R van Gessel, H-J Brambs, and E M Merkle Effect of iodine concentration of contrast media on contrast enhancement in multislice CT of the pancreas Br. J. Radiol., October 1, 2004; 77(922): 821 - 830. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. S. Kim, T. K. Kim, J.-S. Kim, M.-G. Lee, J. H. Kim, K. W. Kim, K.-B. Sung, P.-N. Kim, H. K. Ha, S. G. Lee, et al. Hepatic Venous Congestion after Living Donor Liver Transplantation with Right Lobe Graft: Two-Phase CT Findings Radiology, July 1, 2004; 232(1): 173 - 180. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. W. Kim, B. I. Choi, S. H. Park, H.-C. Kim, M. W. Lee, S. H. Kim, K. H. Lee, C. H. Park, J. S. Kim, H.-J. Won, et al. Hepatocellular Carcinoma: Assessment of Vascularity With Single-Level Dynamic Ultrasonography During the Arterial Phase J. Ultrasound Med., September 1, 2003; 22(9): 887 - 896. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Ichikawa, T. Kitamura, H. Nakajima, H. Sou, T. Tsukamoto, S. Ikenaga, and T. Araki Hypervascular Hepatocellular Carcinoma: Can Double Arterial Phase Imaging with Multidetector CT Improve Tumor Depiction in the Cirrhotic Liver? Am. J. Roentgenol., September 1, 2002; 179(3): 751 - 758. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 W. D. Foley Special Focus Session: Multidetector CT: Abdominal Visceral Imaging RadioGraphics, May 1, 2002; 22(3): 701 - 719. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Kim, T. Murakami, M. Hori, M. Takamura, S. Takahashi, A. Okada, S. Kawata, M. Cruz, M. P. Federle, and H. Nakamura Small Hypervascular Hepatocellular Carcinoma Revealed by Double Arterial Phase CT Performed with Single Breath-Hold Scanning and Automatic Bolus Tracking Am. J. Roentgenol., April 1, 2002; 178(4): 899 - 904. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Ji, J. D. McTavish, K. J. Mortele, W. Wiesner, and P. R. Ros Hepatic Imaging with Multidetector CT RadioGraphics, October 1, 2001; 21(90001): S71 - 80. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. D. Foley, T. A. Mallisee, M. D. Hohenwalter, C. R. Wilson, F. A. Quiroz, and A. J. Taylor Multiphase Hepatic CT with a Multirow Detector CT Scanner Am. J. Roentgenol., September 1, 2000; 175(3): 679 - 685. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. L. Hänninen, T. J. Vogl, R. Felfe, W. Pegios, J. Balzer, W. Clauss, and R. Felix Detection of Focal Liver Lesions at Biphasic Spiral CT: Randomized Double-Blind Study of the Effect of Iodine Concentration in Contrast Materials Radiology, August 1, 2000; 216(2): 403 - 409. [Abstract] [Full Text]
|
|
|
|
|
|
H.-J. Jang, H. K. Lim, S. J. Lee, W. J. Lee, E. Y. Kim, and S. H. Kim Acute Diverticulitis of the Cecum and Ascending Colon: The Value of Thin-Section Helical CT Findings in Excluding Colonic Carcinoma Am. J. Roentgenol., May 1, 2000; 174(5): 1397 - 1402. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. O'Riordan, C. M. Craven, D. Wilson, and P. J. Robinson Dual Phase Hepatic CT: Influence of Scanning Direction on Liver Attenuation Am. J. Roentgenol., May 1, 2000; 174(5): 1417 - 1421. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| RADIOLOGY | RADIOGRAPHICS | RSNA JOURNALS ONLINE |
