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Updated: Apr 12, 2026
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Single-phase Whole-body 64-MDCT Split-bolus Protocol for Pediatric Oncology: Diagnostic Efficacy and Dose Radiation
Michele Scialpi1, Raffaele Schiavone2, Alfredo D'Andrea3
1Department of Surgical and Biomedical Sciences, Division of Radiology 2, Santa Maria della Misericordia Hospital, Perugia University, Perugia, Italy michelescialpi@libero.it michelscialpi1@gmail.com.
Purpose:
To evaluate the image quality and the diagnostic efficacy by single-phase whole-body 64-slice multidetector CT (MDCT) for pediatric oncology.
Patients And Methods:
Chest-abdomen-pelvis CT examinations with single-phase split-bolus technique were evaluated for T: detection and delineation of primary tumor (assessment of the extent of the lesion to neighboring tissues), N: regional lymph nodes and M: distant metastasis. Quality scores (5-point scale) were assessed by two radiologists on parenchymal and vascular enhancement.
Results:
Accurate TNM staging in term of detection and delineation of primary tumor, regional lymph nodes and distant metastasis was obtained in all cases. On the image quality and severity artifact, the Kappa value for the interobserver agreement measure obtained from the analysis was 0.754, (p<0.001), characterizing a very good agreement between observers.
Conclusion:
Single-pass total body CT split-bolus technique reached the highest overall image quality and an accurate TNM staging in pediatric patients with cancer.
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