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This Year In Medicine 2025

Opinion|Videos|December 3, 2024

Comparing the Latest Stool- Based and Blood-Based Colorectal Cancer Screening Tests

Author(s)Vivek Kaul, MD

Key Takeaways

Stool DNA tests, like Cologuard, demonstrate high sensitivity (92%) and specificity (87%) for colorectal cancer detection, analyzing DNA markers and hemoglobin in stool samples.
Blood-based tests, such as Epi proColon, detect circulating tumor DNA or methylated DNA markers, offering a less invasive alternative to colonoscopy.
Blood-based tests generally have lower sensitivity compared to stool DNA tests but provide a complementary screening option for patients.

SHOW MORE

Vivek Kaul, MD, discusses the sensitivity and accuracy of the stool DNA test, providing relevant data, while also describing the role of blood-based tests in colorectal cancer screening and how they complement or differ from stool-based tests.

Episodes in this series

EP. 1 Importance of Colorectal Cancer Screening and Guidelines

EP. 1 Importance of Colorectal Cancer Screening and Guidelines

EP. 2 Options for CRC Screening and Need for Patient- Centered Decision-Making

EP. 2 Options for CRC Screening and Need for Patient- Centered Decision-Making

EP. 3 Overview of Stool DNA Test for CRC

EP. 3 Overview of Stool DNA Test for CRC

EP. 4 Comparing the Latest Stool- Based and Blood-Based Colorectal Cancer Screening Tests

EP. 4 Comparing the Latest Stool- Based and Blood-Based Colorectal Cancer Screening Tests

EP. 5 First Line Care in CRC

EP. 5 First Line Care in CRC

What do we know about the sensitivity and accuracy of the stool DNA test, including any relevant data?
Can you describe the role of blood-based tests in colorectal cancer screening and how they complement or differ from stool-based tests?

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