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Published online before print February 5, 2004, 10.1148/radiol.2303021287

(Radiology 2004;230:879.)

A more recent version of this article appeared on March 1, 2004
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Dual-Modality PET/CT Scanning with Negative Oral Contrast Agent to Avoid Artifacts: Introduction and Evaluation1

Gerald Antoch, MD, Hilmar Kuehl, MD, Jörg Kanja, MD, Thomas C. Lauenstein, MD, Hubert Schneemann, PhD, Elke Hauth, MD, Walter Jentzen, PhD, Thomas Beyer, PhD, Susanne C. Goehde, MD and Jörg F. Debatin, MD, MBA

1 From the Departments of Diagnostic and Interventional Radiology (G.A., H.K., T.C.L., E.H., T.B., S.C.G., J.F.D.), Nuclear Medicine (J.K., W.J., T.B.), and Pharmacy (H.S.), University Hospital Essen, Hufelandstrasse 55, D-45122 Essen, Germany. Received October 7, 2002; revision requested December 17; final revision received July 13, 2003; accepted August 18. Address correspondence to G.A. (e-mail: gerald.antoch@uni-essen.de).



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  		Figure 1a. Transverse CT images demonstrate the degree of small-bowel distention (arrow) with (a) mannitol-LBG (in a 53-year-old woman), (b) water (in a 61-year-old woman), and (c) barium (in a 60-year-old man). Distention with mannitol-LBG was superior to and more homogeneous than that with the other contrast agents.

 


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  		Figure 1b. Transverse CT images demonstrate the degree of small-bowel distention (arrow) with (a) mannitol-LBG (in a 53-year-old woman), (b) water (in a 61-year-old woman), and (c) barium (in a 60-year-old man). Distention with mannitol-LBG was superior to and more homogeneous than that with the other contrast agents.

 


View larger version (139K):

[in a new window]
  		Figure 1c. Transverse CT images demonstrate the degree of small-bowel distention (arrow) with (a) mannitol-LBG (in a 53-year-old woman), (b) water (in a 61-year-old woman), and (c) barium (in a 60-year-old man). Distention with mannitol-LBG was superior to and more homogeneous than that with the other contrast agents.

 


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  		Figure 2a. Coronal images in a 73-year-old man after ingestion of 2 L of mannitol-LBG. A, CT scan. B, PET scan. C, PET/CT scan. Homogeneous tracer uptake in the abdomen without contrast material-induced artifacts is demonstrated in B and C. At the same time, the small-bowel loops are easily delineated in A (arrow).

 


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[in a new window]
  		Figure 2b. Coronal images in a 73-year-old man after ingestion of 2 L of mannitol-LBG. A, CT scan. B, PET scan. C, PET/CT scan. Homogeneous tracer uptake in the abdomen without contrast material-induced artifacts is demonstrated in B and C. At the same time, the small-bowel loops are easily delineated in A (arrow).

 


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  		Figure 2c. Coronal images in a 73-year-old man after ingestion of 2 L of mannitol-LBG. A, CT scan. B, PET scan. C, PET/CT scan. Homogeneous tracer uptake in the abdomen without contrast material-induced artifacts is demonstrated in B and C. At the same time, the small-bowel loops are easily delineated in A (arrow).

 


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  		Figure 3a. Coronal images in a 57-year-old man after ingestion of barium. A, CT scan. B, PET scan. C, PET/CT scan. Apparent tracer uptake in coregistration with the bowel lumen is depicted in B (arrows) and C.

 


View larger version (80K):

[in a new window]
  		Figure 3b. Coronal images in a 57-year-old man after ingestion of barium. A, CT scan. B, PET scan. C, PET/CT scan. Apparent tracer uptake in coregistration with the bowel lumen is depicted in B (arrows) and C.

 


View larger version (90K):

[in a new window]
  		Figure 3c. Coronal images in a 57-year-old man after ingestion of barium. A, CT scan. B, PET scan. C, PET/CT scan. Apparent tracer uptake in coregistration with the bowel lumen is depicted in B (arrows) and C.

 




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