The purpose of this clinical trial is to investigate the accuracy of applying three-dimensional ultrasound on thyroid gland patients when determining a gland volume. The method will be compared to conventional b-mode ultrasound where three axis measurements (length, width, and depth) are evaluated in the ellipsoid model. The three dimensional (3D) method is utilizing optical tracking connected to the ultrasound image to form cross-sectional imaging. Patients enrolled in the study are set for complete thyroidectomies enabling a true volume of the gland by water displacement after excision. The aim is to find if this 3D method is more accurate in volume estimation than the ellipsoid model.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
17
Both 2D and 3D ultrasound is being used. 3D using optical tracking.
Rigshospitalet
Copenhagen, Capital, Denmark
RECRUITINGThyroid volume
Obtaining thyroid volume with 2D ultrasound (length x Width x depth\*(Pi/6)) and 3D ultrasound with optical tracking and comparing the respective methods with a reference volume. Water displacement being gold standard for reference volume.
Time frame: 1 hour
Shrinkage in gland after excision
Looking af the change in volume invivo vs exvivo w. 2D and 3D ultrasound
Time frame: 30 minutes
Interobserver variability
Variation in volume estimation when delineating ultrasound images.
Time frame: 2 hours
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