Invented in the United States, a rice grain-sized CT scanner has emerged as a promising tool for early detection of lung cancer. This innovative technology can identify tumors at an early stage when treatment is most effective, addressing the limitations of traditional scanners that often produce unclear images. The device, no larger than a grain of rice, significantly improves the chances of curing lung cancer.
According to a long-term study published in the New England Journal of Medicine on December 12, 88% of lung cancer patients who underwent CT scans and surgery had a survival rate of around 10 years. In early stages, patients diagnosed with small tumors have a cure rate of about 70%. However, 85% of cases are detected after the tumor has progressed, making treatment more challenging.
Experts have praised the invention, noting that doctors can now better understand and target tumors, giving them more confidence in fighting lung cancer. While this device is not meant for routine screening, it is used only when symptoms appear. Some researchers believe more studies are needed before it becomes widely available.
Concerns have been raised about the study's design, as it didn’t clearly show whether the scanner reduces mortality. Sometimes, CT scans may detect minor issues, leading to unnecessary anxiety and additional tests. Despite these concerns, scientists remain optimistic about the potential of early detection.
“This is a great invention,†said Dr. Sagia from the University of Chicago. “Just like breast imaging revolutionized breast cancer detection, we believe CT scans can do the same for lung cancer.â€
Currently, 484 lung cancer cases have been identified using this technique, with 412 being early-stage cases. These patients had tumors that hadn’t spread and were treatable. After 10 years, their survival rate was 88%. Of those, 302 had surgery within a month of testing, achieving a 92% survival rate.
CT scanning has advanced significantly since the early 1990s, increasing from 30 to 600 images. This enhanced capability allows for better detection of small lesions. A specific radioactive scan now takes just 15–20 seconds, making it quick and efficient.
Screening technology has helped reduce mortality rates in cancers like breast, cervical, and prostate. However, early lung cancer detection still lags behind. Early X-ray research hasn’t made much progress, and smoking remains a major risk factor.
“For over 20 years, little has been done for lung cancer, which remains the leading cause of cancer death,†said Dr. Mike Angger from Fox Chase Cancer Center in Philadelphia. — Shanghai Medical Device Industry Association
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