Case of the month - June

Thyroid Volumetry using freehand 3D ultrasound (tomographic Ultrasound): exemplary comparison with 2D model and MRI

Markus Krönke, Resident Physician, Nuclear Medicine, Klinikums rechts der Isar, Technische Universität München, Munich, Germany
Dr. Thomas Wendler, Senior Scientist, Computer Aided Medical Procedures and Augmented Reality, Technische Universität München, Munich, Germany


Thyroid volumetry plays an essential role in the calculation of the applied dose of radioiodine in patients with Morbus Basedow and local autonomies. Currently, three ultrasound (US) measurements taken by hand in two different planes are used to calculate volume using different mathematical models. Literature shows that these measurements do not only show high intra-observer and inter-observer variation, but may also underestimate the overall volume of the thyroid by up to 30%. Tomographic ultrasound (tUS) might be a user-independent alternative that yields smaller errors. In order to validate this, we compared tUS volumetry with the conventional 2D US approach and calculations based on magnetic resonance images (MRI) as the gold standard.

What you gain from PIUR tUS

Reduced risk

Minimise exposure to ionizing radiation and nephrotoxic contrast by reducing the need for CT and catheter angiography

Higher return on investment

Replace high-cost diagnostic imaging technologies for many indications and keep your CT and MRI instruments free for other patients

Optimised workflows

Acquire all relevant diagnostic information with one examination and facilitate one-stop outpatient clinic appointments to include consultation and investigation

Shorter examination times

Speed up your ultrasound examinations through three-dimensional data analysis

Improved communication & data exchange

Share complete ultrasound volume data with surgeons and let them see for themselves what they are going to operate on

What clinicians say


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