In multivariate analysis infromation readily available to radiologists in routine care (age, gender, CT indication, scanning parameters and quality) will be incorporated.
For example, the students have a didactic and hands-on session with an endocrinologist on the management of thyroid nodules which includes indications, scanning technique, and interpretation of ultrasound thyroid scans.
Polyp volume, resistive index, pulsatility index, indication for scan (bleeding vs incidental), and patient age were correlated with histopathologic type of the polyp (nonfunctional, proliferative, secretory, hyperplastic, or malignant).
Demographic variables recorded included the indication for scanning, maternal age, ethnicity, and gestational age at first scan (calculated from last menstrual period or embryo transfer date after infertility treatment).
Indications for scan: Haemodynamic Instability (5/57), Haemodynamic Instability - Post Operative (9/57), PE (1/57), Post Cardiac Arrest (8), Pulmonary Oedema (1), Respiratory Failure (11), Sepsis/SIRS (10), Not documented/Unclear (12).
After confirmation of the diagnosis and surgical indication MRI scanning is performed.
The indications for scanning or imaging should be very limited when a patient with purulent meningitis is admitted.
For some indications, bone scans or FDG-PET can supplement the anatomical methodologies, for example, to identify progression based on a new bone metastasis.
Future CT scans should be limited to situations where there is a definite clinical indication, with every scan optimised to provide a diagnostic CT image at the lowest possible radiation dose.
To avoid this, the indication of the scan should be well known to the operating technologist.
