Justification of CT examinations in young adults and children can be improved by education, guideline implementation and increased MRI capacity.
OBJECTIVE
To determine whether the justification of CT examinations performed on young patients can be improved by various interventions and whether these have an effect on the total number of CTs performed.


METHODS
Specific interventions-education, guideline implementation and increased MRI capacity-were introduced at the Oulu University Hospital, Oulu, Finland, following a previous study demonstrating unjustified use of CT examination in young patients. In the present study, the justification of 177 CT examinations of the lumbar and cervical spine, head, abdomen, nasal sinuses and trauma performed on patients aged under 35 years in 2009 was analysed retrospectively by looking at requests and corresponding patient files. The indications of the examinations were compared with the referral guidelines recommended by the European Commission. Results from our previously published similar study carried out before the interventions were used as a reference.


RESULTS
The proportion of justified CT examinations increased from 71% (141/200) in 2005 to 87% (154/177) in 2009 (p<0.001), and in the lumbar spine group from 23% (7/30) to 81% (22/27) (p<0.001). In the case of most of the unjustified examinations, MRI could have been performed instead. The total number of CT examinations carried out on young patients decreased by 7% (p=0.012) and in the lumbar spine group by 79% (p<0.001).


CONCLUSIONS
The implemented interventions decreased the number of CT examinations performed on young patients, and the justification of the examinations improved significantly.


CONCLUSIONS
This study demonstrates that it is possible to reduce the number of various CT examinations and to improve their justification in young patients by regular education, guideline implementation and increased MRI capacity.
Department of Diagnostic Radiology, Oulu University Hospital, 90029 OYS, Oulu, Finland. pirita.tahvonen@fimnet.fi
P
P
Tahvonen
H
H
Oikarinen
E
E
Pääkkö
A
A
Karttunen
R
R
Blanco Sequeiros
O
O
Tervonen
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D004501:Education, Medical; D005260:Female; D005387:Finland; D019983:Guideline Adherence; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000592:standards*; D014057:Tomography, X-Ray Computed / Q000592:standards*; D055815:Young Adult