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Society for Pediatric Radiology – Poster Archive

Dose Reduction
Showing 13 Abstracts.

Green Jesse,  Butler Nikki,  Riegert Kimberly,  Simoneaux Stephen

Final Pr. ID: Poster #: SCI-001 (T)

To compare the radiation doses that result from different digital radiography imaging methods on neonatal patients in Giraffe Beds using phantom imaging and radiation measurement devices. The lowest dose options will be considered to design an imaging process. Read More

Authors:  Green Jesse , Butler Nikki , Riegert Kimberly , Simoneaux Stephen

Keywords:  isolette, dose reduction, SID

Verma Nupur,  Patel Pratik,  Rajderkar Dhanashree

Final Pr. ID: Poster #: EDU-108

Accidents remain a top cause of morbidity and mortality in pediatric patient. Assessment for blunt trauma to the abdomen is difficult in the trauma patient and findings of bowel injury can be subtly or confounded by visceral injuries. The most specific finding of free air in blunt hollow visceral organ is often minimally present, or entirely unseen. The pediatric radiologist must be familiarity with the more often seen and less specific secondary signs on CT, including free fluid, bowel wall thickening, and mesenteric contusion injury. We present, by case example, bowel injuries in the traumatic pediatric patient and their management and outcomes, while addressing common pearls and pitfalls. As many of these patients do well with non-operative treatment the radiologist must also be familiar with findings that would allow such option, to appropriately advice referring providers and manage potential re-image of the pediatric patient. Read More

Authors:  Verma Nupur , Patel Pratik , Rajderkar Dhanashree

Keywords:  Trauma, Pediatrics, Dose Reduction in CT, Abdominal Injury

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

Final Pr. ID: Paper #: 136

Patients undergoing lung and stem cell transplants require serial CT examinations and hence dose reduction techniques are mandatory. The newest 3rd 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

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

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

Semple Thomas,  Schofield Rebecca,  Petraco Da Cunha Ricardo,  Owens Catherine,  Nicol E,  King Lawrence,  Castellano I

Final Pr. ID: Poster #: EDU-009

To review the basics of CT dose calculation, in particular the nuances of dose calculation / estimation in cardiac CT and the many and varied methods of dose reduction in cardiac and cardiovascular CT. Read More

Authors:  Semple Thomas , Schofield Rebecca , Petraco Da Cunha Ricardo , Owens Catherine , Nicol E , King Lawrence , Castellano I

Keywords:  Dose Reduction, CT, Radiation, Physics, ALARA

Gelfand Michael,  Treves S.

Final Pr. ID: Poster #: EDU-140

The North American and European administered activity recommendations will be reviewed and compared in this educational exhibit. Read More

Authors:  Gelfand Michael , Treves S.

Keywords:  Nuclear medicine, dose reduction

Davis James,  Servaes Sabah,  Nevo Elad,  States Lisa

Final Pr. ID: Paper #: 139

We aim to evaluate qualitative and quantitative image quality of low-dose PET-MRI in young patients. Read More

Authors:  Davis James , Servaes Sabah , Nevo Elad , States Lisa

Keywords:  PET/MRI, dose reduction

Cheung Kenneth,  Lau Damian,  Lam Wendy

Final Pr. ID: Poster #: SCI-006

Our hospital is a local tertiary referral centre for paediatric spinal deformities. Patients were traditionally imaged with digital radiography and secondary digital stitching of images. Repeated imaging is routinely required for monitoring of disease progression.
EOS biplanar X-ray imaging unit is a novel system utilizing slot-scanning technology to acquire high-quality full-length images of patients in an upright weight-bearing position. The EOS system is now commonly used in Western countries. However, studies describing utilization in Asian population has not been published, according to our understanding. This study aims to describe our local experience, in particular lower radiation dose requirements when compared with default settings.
Read More

Authors:  Cheung Kenneth , Lau Damian , Lam Wendy

Keywords:  EOS, Scoliosis, Dose Reduction, Comparison

Acord Michael,  Shellikeri Sphoorti,  Vatsky Seth,  Nazario Maricarmen,  Srinivasan Abhay,  Krishnamurthy Ganesh,  Keller Marc,  Cahill Anne Marie

Final Pr. ID: Poster #: EDU-074

Low dose C-arm Computed Tomography (CT), is a technology that uses flat panel detectors to acquire real-time 3D images during an interventional radiology (IR) procedure to assist with anatomic localization and procedural mapping. This study describes our low dose protocol and applications of its use at a pediatric institution. Read More

Authors:  Acord Michael , Shellikeri Sphoorti , Vatsky Seth , Nazario Maricarmen , Srinivasan Abhay , Krishnamurthy Ganesh , Keller Marc , Cahill Anne Marie

Keywords:  dose reduction, 3D fluoroscopy, guidance

Luhar Aarti,  Vu Dan,  Holmes Nathan,  Renella Pierangelo

Final Pr. ID: Poster #: SCI-069

Computed Tomography Angiography (CTA) is a valuable non-invasive tool for assessment of congenital heart disease in neonates. Though it requires less radiation, contrast and sedation than catheter angiography, which is the current standard of care, traditional CTA can still necessitate significant radiation dose, sedation, breath-holding and/or low heart-rates to achieve diagnostic studies. In this frequently imaged neonatal patient population, it is imperative to minimize cumulative radiation to limit the lifetime risk of cancer. At our institution, we have successfully used a new fast-acquisition FLASH CTA protocol to achieve high quality imaging of neonates with complex congenital heart disease with minimal radiation dose and without sedation. Read More

Authors:  Luhar Aarti , Vu Dan , Holmes Nathan , Renella Pierangelo

Keywords:  Computed Tomography Angiography, Congenital Heart Disease, Radiation Dose Reduction

Siegel Marilyn,  Ramirez Giraldo Juan Carlos

Final Pr. ID: Paper #: 037

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

Authors:  Siegel Marilyn , Ramirez Giraldo Juan Carlos

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

O'connor Seán,  Graeber Brendon

Final Pr. ID: Poster #: EDU-036

Limiting radiation exposure while obtaining diagnostic-quality imaging is an essential goal of diagnostic radiology. This is particularly true for computed tomography (CT) scanning in children, who are more susceptible than adults to stochastic effects of radiation exposure. High-pitch technique with iterative reconstruction using modern dual-source CT scanners can reduce CT dose. This method uses some combination of peak kilovoltage (kVp) reduction and tube current modulation while also leveraging dual-source geometry to increase the pitch at which the images are acquired. Our institution recently transitioned to this method of performing CT scans. As part of a quality assurance study, we reviewed the dose exposure to our patients pre- and post-implementation. Read More

Authors:  O'connor Seán , Graeber Brendon

Keywords:  Dose Reduction, dual-source, high-pitch

Garcia Evelyn,  Mcelroy Kevin

Final Pr. ID: Poster #: SCI-037

Determine the most effective method of computed tomography (CT) dose reduction that maintains diagnostic imaging quality, relative to individual patient size characteristics, such as Body Mass Index (BMI) and maximal girth. Read More

Authors:  Garcia Evelyn , Mcelroy Kevin

Keywords:  Dose reduction, Iterative reconstruction, Computed tomography

Bauer Kimberly

Final Pr. ID: Poster #: EDU-01 (R)

Since children are more susceptible to the potential effects of ionizing radiation, every opportunity to lower pediatric radiation dose will be explored. Read More

Authors:  Bauer Kimberly

Keywords:  Dose Reduction, Pediatric Imaging