| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 All authors: Department of Medical Radiology, Division of Nuclear Medicine, University Hospital Zurich, Raemistr. 100, CH-8091 Zurich, Switzerland.
Abstract
OBJECTIVE. Coregistration of positron emission tomography (PET) and CT images results in significantly improved localization of abnormal FDG uptake compared with PET images alone. For delineation of intestinal structures, application of oral contrast media is a standard procedure in CT. The influence of oral contrast agents in PET imaging using CT data for attenuation correction was evaluated in a comparative study on an in-line PET—CT system.
SUBJECTS AND METHODS. Sixty patients referred for PET—CT were evaluated in two groups. One group of 30 patients received oral Gastrografin 45 min before data acquisition. The second group received no contrast medium. PET images were reconstructed, using CT data for attenuation correction. Image analysis was performed by two reviewers in consensus, using a 4-point scale comparing FDG-uptake in the gastrointestinal tract in PET images of both groups. Furthermore, correlation of FDG uptake and localization of contrast media in the intestinal tract in CT images were determined.
RESULTS. No significant difference in FDG uptake in PET images in all regions of the gastrointestinal tract except the ascending colon was seen in both groups. No correlation was found in the location of increased FDG uptake and contrast media in the CT images.
CONCLUSION. An oral contrast agent can be used for coregistered PET—CT without the introduction of artifacts in PET.
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
This article has been cited by other articles:
|
|
 |
|
  M. J. Gollub, R. Hong, D. M. Sarasohn, and T. Akhurst Limitations of CT During PET/CT J. Nucl. Med., October 1, 2007; 48(10): 1583 - 1591. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Buther, L. Stegger, M. Dawood, F. Range, M. Schafers, R. Fischbach, T. Wichter, O. Schober, and K. P Schafers Effective Methods to Correct Contrast Agent-Induced Errors in PET Quantification in Cardiac PET/CT J. Nucl. Med., July 1, 2007; 48(7): 1060 - 1068. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A C Pfannenberg, P Aschoff, K Brechtel, M Muller, M Klein, R Bares, C D Claussen, and S M Eschmann Value of contrast-enhanced multiphase CT in combined PET/CT protocols for oncological imaging Br. J. Radiol., June 1, 2007; 80(954): 437 - 445. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 W. De Wever, Y. Vankan, S. Stroobants, and J. Verschakelen Detection of extrapulmonary lesions with integrated PET/CT in the staging of lung cancer Eur. Respir. J., May 1, 2007; 29(5): 995 - 1002. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. M. Blodgett, C. C. Meltzer, and D. W. Townsend PET/CT: Form and Function Radiology, February 1, 2007; 242(2): 360 - 385. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Rodriguez-Vigil, N. Gomez-Leon, I. Pinilla, D. Hernandez-Maraver, J. Coya, L. Martin-Curto, and R. Madero PET/CT in Lymphoma: Prospective Study of Enhanced Full-Dose PET/CT Versus Unenhanced Low-Dose PET/CT J. Nucl. Med., October 1, 2006; 47(10): 1643 - 1648. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. A. Blake, A. Singh, B. N. Setty, J. Slattery, M. Kalra, M. M. Maher, D. V. Sahani, A. J. Fischman, and P. R. Mueller Pearls and Pitfalls in Interpretation of Abdominal and Pelvic PET-CT RadioGraphics, September 1, 2006; 26(5): 1335 - 1353. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 F. Gutman, J.-L. Alberini, M. Wartski, D. Vilain, E. Le Stanc, F. Sarandi, C. Corone, C. Tainturier, and A. P. Pecking Incidental Colonic Focal Lesions Detected by FDG PET/CT Am. J. Roentgenol., August 1, 2005; 185(2): 495 - 500. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. M. Blodgett, M. B. Fukui, C. H. Snyderman, B. F. Branstetter IV, B. M. McCook, D. W. Townsend, and C. C. Meltzer Combined PET-CT in the Head and Neck: Part 1. Physiologic, Altered Physiologic, and Artifactual FDG Uptake RadioGraphics, July 1, 2005; 25(4): 897 - 912. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Antoch, H. Kuehl, J. Kanja, T. C. Lauenstein, H. Schneemann, E. Hauth, W. Jentzen, T. Beyer, S. C. Goehde, and J. F. Debatin Dual-Modality PET/CT Scanning with Negative Oral Contrast Agent to Avoid Artifacts: Introduction and Evaluation Radiology, March 1, 2004; 230(3): 879 - 885. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. W. Goerres, D. T. Schmid, F. Bandhauer, P. U. Huguenin, G. K. von Schulthess, S. Schmid, and S. J. Stoeckli Positron Emission Tomography in the Early Follow-up of Advanced Head and Neck Cancer Arch Otolaryngol Head Neck Surg, January 1, 2004; 130(1): 105 - 109. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. L. Wahl Why Nearly All PET of Abdominal and Pelvic Cancers Will Be Performed as PET/CT J. Nucl. Med., January 1, 2004; 45(90010): 82S - 95. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. K. Pannu, R. E. Bristow, C. Cohade, E. K. Fishman, and R. L. Wahl PET-CT in Recurrent Ovarian Cancer: Initial Observations RadioGraphics, January 1, 2004; 24(1): 209 - 223. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. A. Nehmeh, Y. E. Erdi, H. Kalaigian, K. S. Kolbert, T. Pan, H. Yeung, O. Squire, A. Sinha, S. M. Larson, and J. L. Humm Correction for Oral Contrast Artifacts in CT Attenuation-Corrected PET Images Obtained by Combined PET/CT J. Nucl. Med., December 1, 2003; 44(12): 1940 - 1944. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Dizendorf, T. F. Hany, A. Buck, G. K. von Schulthess, and C. Burger Cause and Magnitude of the Error Induced by Oral CT Contrast Agent in CT-Based Attenuation Correction of PET Emission Studies J. Nucl. Med., May 1, 2003; 44(5): 732 - 738. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
