"It's all in the history": A service evaluation of the quality of radiological requests in acute imaging.

INTRODUCTION: The aim of this service evaluation project was to assess the quality of clinical details provided in radiological requests.

METHODS: A retrospective review of adult inpatient and emergency department radiological requests over a seven-day period was performed, using the local Clinical Radiological Information System (CRIS). Requests for plain film, CT, MRI and Ultrasound were assessed for the inclusion of a clinical question, lateralisation/localisation of signs or symptoms if required, and relevant past medical/surgical history if available.

RESULTS: 1548 imaging requests were analysed. 76% asked a specific clinical question. 74% of requests requiring localisation provided this. Of those cases with relevant past medical or surgical history available, 49% mentioned this. Emergency department (ED) requests provided localisation when required in 81% of cases compared to 62% of in-patients (p < 0.05). However, in-patient requests contained relevant past history in 53% of cases compared to 40% for ED requests (p = 0.00096). Compared to plain film requests, those for CT, MRI and Ultrasound studies were more complete in respect to inclusion of a clinical question (88% versus 72%, p < 0.05), localisation if required (83% versus 71%, p = 0.0007) and pertinent clinical history (67% versus 42%, p < 0.05). Requests from the weekend more often included a clinical question (83% vs 75%, p = 0.00054) and localisation if needed (84% vs 71%, p = 0.00188) compared with weekday requests.

CONCLUSION: This large-scale service evaluation project shows that the quality of clinical details in requests for radiological investigations requires improvement, particularly in regard to inclusion of relevant past medical and surgical history.