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    Increasing Contrast Agent Concentration Improves Enhancement in First-Pass CT Perfusion | American Journal of Neuroradiology  
    



















    































    
  
  




    
    

  

      


    

      

  
  
  

    

  

    

  

                
    

      

  

    

  
      
  
  

    


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Research ArticleBRAIN

  
      

  
      
Increasing Contrast Agent Concentration Improves Enhancement in First-Pass CT Perfusion
  
    	
H.M. Silvennoinen, L.M. Hamberg, L. Valanne and G.J. Hunter

  
    	
American Journal of Neuroradiology August 2007,  28 (7) 1299-1303; DOI: https://doi.org/10.3174/ajnr.A0574 

  
  
  



  


  
  



			

		

	
	
 	
	  
  

		
		

			

			  

  
      
  
  

    
  


  
  



  
      
  
  

    

  

    

  
      
  
  

    
References
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    Mayer TE, Hamann GF, Baranczyk J, et al. Dynamic CT perfusion imaging of acute stroke. AJNR Am J Neuroradiol 2000;21:1441–49
    Abstract/FREE Full Text
  2. Latchaw RE, Yonas H, Hunter GJ, et al. Guidelines and recommendations for perfusion imaging in cerebral ischemia: a scientific statement for health care professionals by the writing group on perfusion imaging from the Council on Cardiovascular Radiology of the American Heart Association. Stroke 2003;34:1084–104
    FREE Full Text
  3. Esteban JM, Cervera V. Perfusion CT and angio CT in assessment of acute stroke. Neuroradiology 2004;46:705–15
    CrossRefPubMed
  4. Wintermark M, Fischbein NJ, Smith WS, et al. Accuracy of dynamic perfusion CT with deconvolution in detecting acute hemispheric stroke. AJNR Am J Neuroradiol 2005;26:104–12
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    Eastwood JD, Lev MH, Provenzale JM. Perfusion CT with iodinated contrast material. AJR Am J Roentgenol 2003;180:3–12
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    Hamberg LM, Hunter GJ, Halpern EF, et al. Quantitative high-resolution measurement of cerebrovascular physiology with slip-ring CT. AJNR Am J Neuroradiol 1996;17:639–50
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    Nabavi DG, Genic A, Craen RA, et al. CT assessment of cerebral perfusion: experimental validation and initial clinical experience. Radiology 1999;213:141–49
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    Sanelli PC, Lev MH, Eastwood JD, et al. The effect of varying user-selected input parameters on quantitative values in CT perfusion maps. Acad Radiol 2004;11:1085–92
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    Benner T, Heiland S, Erb G, et al. Accuracy of gamma-variate fits to concentration-time curves from dynamic susceptibility-contrast enhanced MRI: influence of time resolution, maximal signal drop and signal-to-noise. J Magn Reson Imaging 1997;15:307–17
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    Schoellnast H, Deutschman HA, Fritz GA, et al. MDCT angiography of the pulmonary arteries: influence of iodine flow concentration on vessel attenuation and visualization. AJR Am J Roentgenol 2005;184:1935–39
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    Cademartiri F, Mollet NR, van der Lugt A, et al. Intravenous contrast material administration at helical 16-detector row CT coronary angiography: effect of iodine concentration on vascular attenuation. Radiology 2005;236:661–65
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    Suzuki H, Oshima H, Shiraki N, et al. Comparison of two contrast materials with different iodine concentrations in enhancing the density of the aorta, portal vein, and liver at multi-detector row CT: A randomized study. Eur Radiol 2004;14:2099–104
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    Awai K, Inoue M, Yagyu Y, et al. Moderate versus high concentration of contrast material for aortic and hepatic enhancement and tumor-to-liver contrast at multi-detector row CT. Radiology 2004;233:682–88. Epub 2004 Oct 14
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Increasing Contrast Agent Concentration Improves Enhancement in First-Pass CT Perfusion
  
    	
H.M. Silvennoinen, L.M. Hamberg, L. Valanne, G.J. Hunter

  
    	
American Journal of Neuroradiology Aug 2007, 28 (7) 1299-1303; DOI: 10.3174/ajnr.A0574 

  
  
  



  


  
  



  
      
  
  

    

  
    
  
  
    
  
  
    
  


  


  
  



  
      
  
  

    
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