Thyroid Cancer Diagnosis via Elemental Analysis of Microscopic Calcifications
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Solution Overview
Problem
Current diagnostic methods for thyroid nodules, such as fine needle aspiration cytology (FNAC), often yield indeterminate results, leading to repeated procedures and costly molecular testing, without providing a non-invasive means to differentiate between benign and malignant nodules.
Innovation Solution
The method involves determining the presence, amount, or both, of specific elements like Zinc (Zn) and Magnesium (Mg) in microscopic calcifications (MCs) derived from a thyroid biopsy, which serves as a biomarker for thyroid malignancy, allowing for accurate diagnosis and potentially guiding treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fine needle aspiration cytology (FNAC) is used to diagnose thyroid nodules, then the procedure is minimally invasive and can be performed routinely, but the diagnostic accuracy is limited with indeterminate results in up to 30% of cases
Solution Approach 1:
The patent changes the diagnostic parameter from general cytological assessment to specific elemental composition analysis of calcifications. By measuring the presence and ratio of zinc, magnesium, and calcium elements within calcification structures, the method transforms an imprecise cytological evaluation into a quantitative elemental analysis that provides more reliable differentiation between benign and malignant nodules.
Solution Approach 2:
The patent focuses analysis on a specific local feature within the nodule - the calcifications - rather than examining the entire nodule or general cellular morphology. By isolating and analyzing the elemental composition specifically within calcification structures, the method extracts localized diagnostic information that is more discriminatory for malignancy detection.
2Reliability
If repeated FNAC procedures or molecular testing are performed to resolve indeterminate cases, then diagnostic certainty may be improved, but the cost and patient burden increase significantly
Solution Approach 1:
The patent performs elemental analysis of calcifications during the initial FNAC procedure itself, rather than requiring subsequent repeat procedures. By extracting and analyzing the elemental composition of calcifications from the first biopsy sample, the method provides definitive diagnostic information upfront, eliminating the need for time-consuming sequential testing and repeated needle aspirations.
3Reliability
If elemental analysis of calcifications is performed during routine FNAC, then diagnostic accuracy for thyroid malignancy is significantly improved, but the complexity of the diagnostic procedure increases
Solution Approach 1:
The patent uses calcifications as an intermediary structure for diagnosis. Rather than directly analyzing thyroid tissue cells, the method targets the calcification deposits within the nodule as a surrogate marker. These calcifications serve as a convenient intermediary that can be easily extracted and analyzed for elemental composition, providing indirect but highly accurate information about the underlying tissue pathology.
Data Source
AI summary
The present invention is directed to a method for diagnosing a thyroid cancer in a subject in need thereof, the method including determining presence, amount, or both, of at least one species of Zinc, Magnesium or both, wherein the species is in a microscopic calcification (MC) derived from a thyroid biopsy obtained from the subject, wherein: (a) the presence of the species; (b) alteration in the amount of the species compared to a healthy control; or (c) both, in the MC is indicative of the subject being afflicted with the thyroid cancer. Further provided are a method for treating a subject diagnosed with thyroid cancer, as well as preparing a sample including a thyroid biopsy for thyroid cancer diagnosis.