Ultrasound can be used effectively for precise sialolith localization intraoperatively, and can be repeated multiple times during any given procedure

Intraoral Ultrasound Compares Favorably to Histopathology in Oral Tongue Malignancy Evaluation
Intraoral ultrasound is useful in the evaluation of oral tongue malignancies when compared with histopathological methods.

Study Raises Concern over Imaging after Thyroid Cancer
The use of neck ultrasounds, radioiodine scans, and PET scans in people diagnosed with thyroid cancer was associated with additional treatment for recurrence.
US Effective Initial Localization Study in Patients with Primary Hyperparathyroidism
Can ultrasound replace sestamibi scans in the pre-operative evaluation of patients with primary hyperparathyroidism?