Keywords:
Multicentre study, Observational, Retrospective, Endocrine disorders, Surgery, Nuclear medicine conventional, CT, Thyroid / Parathyroids, Head and neck, Head and Neck
Authors:
S. L. Macpherson, J. Levens, C. M. Cameron, M. A. Hunter; Glasgow/UK
DOI:
10.26044/ecr2020/C-01188
Results
24/34 (71%) lesions were pathologically confirmed as parathyroid adenomas. Other diagnoses included gland hyperplasia, ectopic thyroid tissue and microcarcinomas.
72% of 4DCT scans were performed with 4 phases, 28% with 3 phases.
4DCT correctly identified 21 out of 24 parathyroid adenomas in our cohort of 34 patients that had surgery. 4DCT had sensitivity of 88% (21/(21+3) = 88%).
4DCT correctly identified adenoma in 6 patients after they were not identified on alternative imaging.
4DCT missed only three lesions identified intraoperatively,
compared with 13 and 6 missed by ultrasound and scintigraphy respectively.
30/34 surgical patients had ultrasound. In out cohort, ultrasound had a sensitivity of 43% (9/(9+12) = 43%).
33/34 surgical patients had nuclear medicine examinations. This included SPECT in all 33 cases and had a sensitivity of 70%. (16/(16+7) = 70%).