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Society for Pediatric Radiology – Poster Archive

Juan Carlos Ramirez-giraldo

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Showing 4 Abstracts.

Pediatric Diagnostic Reference Ranges for Dual-energy Dual-source Contrast-enhanced Chest CT

To develop diagnostic reference ranges (DRRs) for pediatric contrast-enhanced dual-energy CT (DECT) examinations as a function of patient size and radiation output of the CT scanner with comparison to conventional single energy CT (SECT). Read More

Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020

Authors: Siegel Marilyn, Ramirez Giraldo Juan Carlos

Keywords: Dual-Energy CT, Chest CT, Dose Reduction

Using Dual-Source, Dual-energy CT Material Decomposition Technology for Pediatric Thoracic Imaging

Dual-energy computed tomography (DECT) decomposition software has expanded the scope of CT post-processing. It is an efficient method in pediatric thoracic imaging to define both vascular and parenchymal abnormalities<i>. </i> Read More

Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020

Authors: Alizadeh Houman, Siegel Marilyn, Ramirez Giraldo Juan Carlos

Keywords: Dual Energy CT, chest, pediatric

Comparison of Radiation Dose Between 100 kVp Using Spectral Filtration and Conventional kVp imaging in Non-contrast Enhanced Chest CT in a Pediatric Transplant Population

Patients undergoing lung and stem cell transplants require serial CT examinations and hence dose reduction techniques are mandatory. The newest 3<sup>rd</sup> generation dual-source CT scanner incorporates spectral beam shaping at 100 kilovoltage (kVp) using a dedicated tin filter (100 kVp Sn), which improves dose efficiency by removing low-energy photons that contribute little to noncontrast image quality. The purpose of this study was to compare radiation exposure in non-contrast-enhanced pediatric chest CT at 100 kVp Sn imaging and at conventional low kVp imaging in the same patient cohort. Read More

Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020

Authors: Siegel Marilyn, Ramirez Giraldo Juan Carlos, Cullinane Mike, Bhalla Sanjeev

Keywords: Dose Reduction, ALARA, Lung and Stem Cell Transplant

Feasibility of Chest and Abdominopelvic Scanning in Small Children Using a Mobile CT Platform

Critically ill neonatal, cardiovascular, and pediatric ICU patients often cannot be transported for advanced imaging due to clinical instability, staffing, and monitoring needs. Our goal was to evaluate the potential of repurposing a mobile CT system for chest and abdominopelvic imaging in pediatric ICU patients. Read More

Meeting name: SPR 2026 Annual Meeting , 2026

Authors: Cao Joseph, Bache Steve, Solomon Justin, Hallam Kristina, Ramirez-giraldo Juan Carlos, Samei Ehsan, Frush Donald

Keywords: Computed Tomography, Mobile, Neonatal