Fluorescent thyroid imaging: clinical evaluation of an alternative instrument

Area of Science:

• Nuclear medicine
• Medical imaging
• Radiology

Background:

• Traditional thyroid imaging relies on radioactive isotopes like Iodine-123 (123I) or Technetium-99m (99mTc) pertechnetate.
• These methods, while effective, involve administering radioactive materials to patients.
• Assessing alternative, non-radioactive imaging modalities is crucial for patient safety and accessibility.

Purpose of the Study:

• To evaluate the feasibility and efficacy of fluorescent imaging for thyroid gland assessment.
• To compare the image quality and diagnostic information of fluorescent imaging with established radioactive tracers.
• To determine the radiation dose associated with fluorescent thyroid imaging.

Main Methods:

• Fluorescent imaging was performed on 43 patients using low-energy photons generated by an X-ray tube.
• Image quality and diagnostic content were assessed and compared to conventional imaging methods.
• Radiation absorbed dose to the thyroid gland was estimated.

Main Results:

• Successful fluorescent imaging of the thyroid was achieved in all 43 patients.
• The quality and information content of fluorescent images were comparable to those obtained with Iodine-123 and Technetium-99m pertechnetate.
• The estimated absorbed radiation dose to the thyroid gland was approximately 40 mrads, a low dose.

Conclusions:

• Fluorescent imaging using X-ray generated photons is a clinically viable technique for thyroid evaluation.
• This method offers comparable diagnostic performance to radioactive tracers with a significantly lower radiation burden.
• Fluorescent imaging represents a promising, safe alternative for thyroid diagnostics.