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Using Thoracic Helical CT to Assess Iodine Concentration in a Small Volume of Nonionic Contrast Medium During Vascular Opacification

A Prospective Study

Pierre Loubeyre1, Isabelle Debaro1, Chantal Nemoz2 and Van André Tran Minh1

1 Service de Radiologie du Centre Hospitalier Lyon Sud, EA 643, Chemin du Grand Revoyet, 69495 Pierre-Benite Cedex, France.
2 Unité de Pharmacologie Clinique, Université Claude-Bernard Lyon 1.8, Ave. Rockefeller, 69373 Lyon, Cedex 08, France.



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  		Fig. 1A. —Contrast-enhanced helical CT scans of four different patients for which each observer interpreted vascular enhancement of ascending aorta, descending aorta, and pulmonary arteries to be identical using the following 4-point scale: 1, poor; 2, fair; 3, good; and 4, excellent. 69-year-old man with pulmonary infection. Observers scored vascular enhancement as 1.

 


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  		Fig. 1B. —Contrast-enhanced helical CT scans of four different patients for which each observer interpreted vascular enhancement of ascending aorta, descending aorta, and pulmonary arteries to be identical using the following 4-point scale: 1, poor; 2, fair; 3, good; and 4, excellent. 35-year-old man with lymphoma. Observers scored vascular enhancement as 2.

 


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  		Fig. 1C. —Contrast-enhanced helical CT scans of four different patients for which each observer interpreted vascular enhancement of ascending aorta, descending aorta, and pulmonary arteries to be identical using the following 4-point scale: 1, poor; 2, fair; 3, good; and 4, excellent. 38-year-old man with lymphoma. Observers scored vascular enhancement as 3.

 


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  		Fig. 1D. —Contrast-enhanced helical CT scans of four different patients for which each observer interpreted vascular enhancement of ascending aorta, descending aorta, and pulmonary arteries to be identical using the following 4-point scale: 1, poor; 2, fair; 3, good; and 4, excellent. 64-year-old man with uncharacterized pulmonary mass. Observers scored vascular enhancement as 4.

 

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