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Minimizing Radiation Dose for Pediatric Body Applications of Single-Detector Helical CT

Strategies at a Large Children's Hospital

Lane F. Donnelly1,2, Kathleen H. Emery1,2, Alan S. Brody1,2, Tal Laor1,2, Victoria M. Gylys-Morin1,2, Christopher G. Anton1,2, Stephen R. Thomas2 and Donald P. Frush3

1 Department of Radiology, Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH 45229-3039.
2 University of Cincinnati, College of Medicine, Cincinnati, OH 45219-2316.
3 Department of Radiology, Duke University Medical Center, Durham, NC 27710.



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  		Fig. 1A. —8-month-old female infant with palpable abdominal mass, which later proved to be neuroblastoma. Diagnostic images were obtained with 60 mA and 1.5:1 pitch. CT scan shows left adrenal mass (M) and multiple low-attenuation hepatic masses displacing middle and left hepatic veins (arrows). Note one mass that engulfs right hepatic vein (arrowhead).

 


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  		Fig. 1B. —8-month-old female infant with palpable abdominal mass, which later proved to be neuroblastoma. Diagnostic images were obtained with 60 mA and 1.5:1 pitch. CT scan of chest shows right lung nodule (arrow) that later was found to be metastatic neuroblastoma.

 


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  		Fig. 1C. —8-month-old female infant with palpable abdominal mass, which later proved to be neuroblastoma. Diagnostic images were obtained with 60 mA and 1.5:1 pitch. Sagittal reconstruction shows suprarenal, rather than intrarenal, position of adrenal mass (arrows). Note well-demarcated border between mass and left kidney (K). Hepatic masses are visible, as in A and B.

 

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