Keywords:
Head and neck, Thyroid / Parathyroids, CT, Audit and standards, Endocrine disorders
Authors:
L. M. Loy1, S. W. Kheok2, L. E. McAdory2; 1SINGAPORE, SINGAPORE/SG, 2Singapore/SG
DOI:
10.26044/ecr2019/C-0206
Methods and materials
In this audit,
we identified consecutive patients who were referred to the Department of Diagnostic Radiology at Singapore General Hospital for 4D CT scans from April 2015 to August 2018 after initial sestamibi and US scans.
We included patients who underwent surgical resection and whose pathology results were available.
In addition,
we only included patients who were clinically diagnosed with primary hyperparathyroidism,
and excluded patients with history of renal failure or secondary hyperparathyroidism.
4D CT-imaging was conducted using a Siemens SOMATOM Definition CT scanner with 3mm-slice thickness and 3mm width between slices.
We evaluated the performance of 4D CT in terms of lateralization and localization to a specific quadrant.
Data analysis was carried out using SPSS software (version 23,
IBM SPSS Statistics for Windows,
Armonk,
New York,
USA) and Medcalc statistical software (Medcalc,
Ostend,
Belgium).
A 2 x 2 contingency table was used to calculate sensitivity,
specificity,
and accuracy with a 95% confidence interval.