Related Experiment Video
Updated: Jan 26, 2026

Evidence-based Knowledge Synthesis and Hypothesis Validation: Navigating Biomedical Knowledge Bases via Explainable AI and Agentic Systems
Published on: June 13, 2025
Radiology knowledge in new medical graduates in New Zealand
Rathan Subramaniam1, Tim Hall, Tina Chou
11Department of Radiology, Waikato Hospital, Hamilton. rathan67@hotmail.com
Aims:
To establish the level of knowledge of new medical graduates in New Zealand about common radiological investigations and to assess their ability to request most appropriate, cost-effective radiological investigations for common clinical scenarios.
Methods:
A test was developed and administered in Waikato, Christchurch, Rotorua, Auckland, and Dunedin hospitals during the first month of new house officer year (November 2002).
Results:
Sixty-two first year house officers participated; 59 were New Zealand medical graduates (Auckland: 24 and Otago: 35) and 3 were from overseas institutions. The mean score for questions that assessed about risks involved in common investigations, including radiation, was 47% (95% CI: 45%-49%). The mean score for selecting the appropriate clinical investigations was 53% (95% CI 52%-54%). Most significantly, only 42% (95% CI 38%-46%) of the respondents thought they had adequate radiology teaching to work as house officers. The following percentage of the respondents never observed the respective examination during their medical school training: barium enema 72% (95% CI: 60%-82%); IVU 75% (95% CI: 63%-87%); US scan 25% (95% CI: 16%-37%); CT scan 20% (95% CI: 11%-32%); angiogram 16% (95% CI: 9%-28%); MRI 42% (95% CI: 30%-54%). The mean score for the practical knowledge about common investigations was 50 (95% CI: 48%-52%).
Conclusions:
Medical students report that they have limited exposure to radiology teaching during their medical school training. The test results suggest that medical school training enabled them to commence their probationary year with a 'just safe' level of radiology knowledge and skill.
Related Concept Videos
Myocarditis III: Medical Management
Endocarditis III: Medical Management
Radiological Investigation I: X-ray and CT
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Inhaled Medications
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

