Feature | January 12, 2012

Experts Offer Pointers for Optimizing Radiation Dose in Pediatric CT

January 12, 2012 — An article in the January issue of the Journal of the American College of Radiology summarizes methods for radiation dose optimization in pediatric computed tomography (CT) scans. Approximately seven to eight million CT examinations are performed for various pediatric clinical indications per year in the United States.

Justification of clinical indication is the most important aspect of reducing radiation dose with CT scanning. A substantial number of pediatric CT scans lack appropriate justification or can be replaced with other imaging modalities with lower or no ionizing radiation, such as radiography, ultrasonography and magnetic resonance imaging (MRI), which can provide similar diagnostic information for some clinical conditions. 

“When not clinically indicated, not performing a CT examination is certainly the best radiation dose reduction strategy. However, when a CT scan is indicated, there are steps that can be taken to optimize the dose that children receive. It’s important that all imaging providers take these steps as indicated,” said Mannudeep K. Kalra, M.D., author of the article. 

Investigators from Massachusetts General Hospital, Harvard Medical School, in Boston, and Johns Hopkins University in Baltimore, reviewed practical strategies for reducing radiation dose associated with pediatric CT examinations. “Radiation dose reduction in children starts with the optimization of pediatric CT protocols,” said Mahadevappa Mahesh, MS, Ph.D., author of the article. “CT protocols should be strictly optimized on the basis of body size, body region, clinical indication and the availability of prior imaging.”

Additional steps include using a lower tube current and voltage, restricting the scan length to include only the region of interest and using new techniques of image post-processing and reconstruction.   

“Children are more sensitive to radiation-induced risks and need special attention. Therefore, while designing CT protocols, it is crucial to keep clinical indications, weight and prior available imaging in mind to optimize radiation dose,” said Mahesh.

 For more information: www.jacr.org, www.imagewisely.org, www.imagegently.org

Related Content

St. Jude Medical, ADO II AS trial, congenital heart disease, PDA, Amplatzer Duct Occluder II AS
News | Congenital Heart| October 19, 2016
St. Jude Medical Inc. announced the launch of the ADO II AS (AMPLATZER Duct Occluder II Additional Sizes) pediatric...
Lantheus, flurpiridaz F-18, myocardial perfusion imaging, MPI, cardiac stress testing, ASNC 2016
News | Radiopharmaceuticals and Tracers| October 17, 2016
Lantheus Holdings Inc. announced in late September that sub-analysis data from the first Phase 3 study of flurpiridaz F...
Medtronic, FIRE AND ICE trial, Arctic Front, cryoballoon catheter ablation, radiofrequency RF ablation, study results, Asia Pacific Heart Rhythm Society Scientific Sessions
News | Ablation Systems| October 17, 2016
Medtronic plc last week unveiled new health economic analysis data from the FIRE AND ICE trial that favor cryoballoon...
Toshiba CT, picking a CT scanner, choosing a CT scanner, CT 101, what to look for in CT scanners, Aquilion ONE ViSION

The Toshiba Aquilion One Vision system is among the new generation of CT systems on the market that offers several dose lowering technologies and a hardware/software combination to enhance image quality over previous-generation scanners.

Feature | CT Angiography (CTA)| October 14, 2016 | Dave Fornell
As hospitals begin replacing their first-generation 64-slice computed tomography (CT) scanners after a decade of use,
transcarotid artery revascularization, TCAR Surveillance Project, Society for Vascular Surgery Patient Safety Organization, SVS PSO,
News | Stents Carotid| October 13, 2016
A surveillance project to evaluate the safety and effectiveness of transcarotid artery revascularization (TCAR) in...
Shockwave lithoplasty system, VIVA 16, Vascular Interventioanl Advances, VIA Physicians, late-breaking endovascular clinical trial results
News | Cath Lab| October 12, 2016
VIVA (Vascular Interventional Advances) Physicians announced a number of highly anticipated late-breaking clinical...
ZipLine Medical, Zip Surgical Skin Closure, cath lab time savings, PACE study
News | EP Lab| October 10, 2016
October 10, 2016 — ZipLine Medical Inc.
Mercator MedSystems, Bullfrog Micro-Infusion Device, DANCE trial, VIVA 2016, 13-month results
News | Peripheral Arterial Disease (PAD)| October 07, 2016
Mercator MedSystems recently announced that 13-month data from the DANCE trial was presented during a late-breaking...
Keystone Heart, TriGuard Embolic Protection Device, Neuro-TAVR study, brain lesions, American Journal of Cardiology
News | Heart Valve Technology| October 03, 2016
Keystone Heart Ltd. announced data recently published in the American Journal of Cardiology demonstrating new brain...
TCT 2016, TCT.16, main arena, late breaking trials
Feature | Cath Lab| September 28, 2016
September 28, 2016 — The Cardiovascular Research Foundation (CRF) has announced the 11 late-breaking trials and 16 fi
Overlay Init