Using PET Scans for Cancer Screening
Author Information
Author(s): Yasuda S, Ide M, Fujii H, Nakahara T, Mochizuki Y, Takahashi W, Shohtsu A
Primary Institution: HIMEDIC Imaging Center at Lake Yamanaka, Hirano, Yamanashi, Japan
Hypothesis
Can whole-body PET scans effectively screen for cancer in asymptomatic individuals?
Conclusion
Whole-body PET scans can detect various cancers at potentially curable stages, but are not suitable for general population screening due to high costs.
Supporting Evidence
- PET detected malignant tumors in 67 out of 3165 participants.
- 54% of the detected cancers were true positives.
- Most patients with true-positive results underwent potentially curative surgery.
- 46% of the detected cancers were false negatives.
Takeaway
This study shows that PET scans can find cancer early in people who don't have symptoms, but they are too expensive for everyone to use.
Methodology
Whole-body PET scans were performed alongside conventional examinations on asymptomatic individuals over several years.
Limitations
PET imaging is costly and may not be practical for widespread screening.
Participant Demographics
2017 men and 1148 women, mean age 52.2 years.
Digital Object Identifier (DOI)
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