title: A review of cross-sectional imaging, ultrasound and nuclear medicine utilization patterns in paediatric patients in Ireland, 2003-12.
abstract: OBJECTIVE
  Recent trends in paediatric imaging have been examined in Australia and the USA. Such literature in Europe is sparse, incomprehensive and outdated. This research investigated (1) population-based trends in the use of advanced medical imaging in children in Ireland from 2003 to 2012; (2) its use across age and gender; and (3) the most commonly performed examinations within each modality.
  
  
  METHODS
  A retrospective cohort analysis study was carried out within Irish paediatric hospitals. All CT, MRI, ultrasound and nuclear medicine (NM) annual examination data from 2003 to 2012 was obtained from radiology information systems.
  
  
  RESULTS
  224,173 imaging procedures were carried out on 84,511 patients, 68% of which were ultrasound, 15% were MRI, 11% were CT and 6% were NM. Between 2003 and 2012, MRI (+280%) and CT (+80%) saw the largest increases in use, followed by ultrasound (+67%) and NM (+10%). Almost half of the study population were less than 3 years old. CT imaging was more frequent than MR in 2005. By 2012, MR rates were twice that of CT. CT imaging rates were the lowest in the youngest age categories.
  
  
  CONCLUSIONS
  Advanced imaging use, particularly MRI, has risen substantially over the past 10 years. The utilization of non-ionizing modalities increased between 2003 and 2012, especially in brain, spinal and abdominal imaging. MR is now used at twice the frequency of CT.
  
  
  CONCLUSIONS
  Longitudinal advanced imaging utilization trends, including CT trends, have been established in the Irish paediatric population.
authors: School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.
authors: M
authors: M
authors: O'Connor
authors: J
authors: J
authors: Ryan
authors: S
authors: S
authors: Foley
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D003952:Diagnostic Imaging / Q000706:statistics & numerical data*; D006776:Hospitals, Pediatric; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007494:Ireland; D009683:Nuclear Medicine; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D012189:Retrospective Studies
chemical_list: D003287:Contrast Media
references: Br J Radiol. 2012 Oct;85(1018):1390-7
references: 22595497
references: AJR Am J Roentgenol. 2010 May;194(5):1194-6
references: 20410402
references: JAMA. 2005 Jun 1;293(21):2609-17
references: 15928282
references: N Engl J Med. 2007 Nov 29;357(22):2277-84
references: 18046031
references: Pediatr Radiol. 2011 Sep;41 Suppl 2:461-6
references: 21847723
references: J Med Imaging Radiat Oncol. 2011 Apr;55(2):132-42
references: 21501401
references: Pediatr Radiol. 2006 Jun;36(6):485-90
references: 16552588
references: AJR Am J Roentgenol. 2001 Feb;176(2):289-96
references: 11159059
references: Pediatrics. 2013 Jan;131(1):e45-52
references: 23209100
references: Semin Ultrasound CT MR. 2010 Apr;31(2):171-93
references: 20304324
references: Arch Pediatr Adolesc Med. 2011 May;165(5):458-64
references: 21199972
references: JAMA. 2012 Jun 13;307(22):2400-9
references: 22692172
references: Pediatr Radiol. 2011 Sep;41 Suppl 2:514-6
references: 21847732
references: Pediatr Radiol. 2002 Oct;32(10):700-6
references: 12244457
references: JAMA Pediatr. 2013 Aug 1;167(8):700-7
references: 23754213
references: Health Aff (Millwood). 2008 Nov-Dec;27(6):1467-78
references: 18997202
references: Radiology. 2009 Nov;253(2):520-31
references: 19789227
references: Arch Intern Med. 2009 Dec 14;169(22):2071-7
references: 20008689
references: Lancet. 2012 Aug 4;380(9840):499-505
references: 22681860
references: J Radiol Prot. 2000 Dec;20(4):353-9
references: 11140709
references: Pediatrics. 2007 Sep;120(3):677-82
references: 17766543
references: Pediatr Radiol. 2008 Mar;38(3):285-91
references: 18183380
references: Radiol Res Pract. 2012;2012:594278
references: 22792457