Tube current reduction in pediatric non-ECG-gated heart CT by combined tube current modulation

Pediatric Radiology
Hyun Woo GooDong Soo Suh

Abstract

Dose reduction by combined tube current modulation has not been evaluated in pediatric low-dose CT. This study was performed to evaluate tube current reduction in non-ECG-gated heart CT angiography in children by combined tube current modulation, and to assess the effects of body weight, age, sex, and scan direction on tube current reduction. From September 2004 to January 2005, non-ECG-gated heart CT examinations were performed with combined tube current modulation in 50 children (median age 1 year, range 1 month to 16 years; M/F 29/21) with congenital heart disease. Sixteen-slice spiral CT studies were obtained using a weight-based low-dose protocol (80 kVp, 50-160 effective mA). CT scans were obtained in the craniocaudal direction when leg veins (n=36) were used for IV injection of contrast agent and in the caudocranial direction when arm veins (n=13) were used. In one child who underwent a Fontan operation, both arm and leg veins were used. We calculated tube current reduction by combined tube current modulation and evaluated the effects of body weight, age, sex, and scan technique on tube current reduction. The quality of CT angiography images was visually evaluated by an experienced pediatric radiologist. Overall tube cur...Continue Reading

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Citations

Dec 16, 2006·Pediatric Radiology·Hyun Woo Goo, In-Sook Park
Oct 30, 2007·Pediatric Radiology·Dong Hyun YangYoung Hwee Kim
Feb 19, 2013·Pediatric Radiology·Hyun Woo Goo
Apr 25, 2012·AJR. American Journal of Roentgenology·Luis Ramos-DuranAnthony M Hlavacek
Nov 23, 2013·AJR. American Journal of Roentgenology·Justin E CostelloJennifer L Bau
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Oct 30, 2012·Acta Radiologica·Hyun Woo Goo
Jan 17, 2012·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo
Mar 6, 2015·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo
Jan 5, 2010·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo
Apr 25, 2017·Pediatric Radiology·Peter K T HuiSuvipaporn Siripornpitak
Jan 24, 2019·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Sun Hwa HongUNKNOWN Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group
Jan 31, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo
May 16, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo, Sang Hyub Park
May 16, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo, Sang Hyub Park
Sep 24, 2019·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Hyun Woo Goo
Jul 7, 2021·Radiation Protection Dosimetry·Takanori MasudaKazuo Awai

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