China Nationwide Multi Center Big Data Study on Quantitative Computed Tomography and Health Status of Check-up Population

What this Trial Is About

Researchers are conducting a nationwide, multi-center study in China to combine low dose chest CT scan data with Quantitative Computed Tomography (QCT) technology. The goal is to measure bone mineral density (BMD) of the spine, visceral adipose tissue (VAT), and liver fat content in people undergoing health checks. This study aims to assess how well QCT works in health screenings and to understand the rates of osteoporosis, obesity, and liver steatosis in the health check population across China. The study uses standard low dose chest CT scans commonly performed in health check centers to gather raw CT data. QCT then analyzes this data to quantify BMD, VAT, and liver fat content. These measurements help in diagnosing osteoporosis, evaluating obesity, and assessing liver steatosis without additional scanning procedures. The study collects this information from multiple centers throughout China, enhancing the data's breadth and reliability. Participants aged 30 to 90 years who undergo low dose chest CT scans as part of health checks are involved. The study monitors spinal volumetric bone mineral density as the primary outcome over two years. Secondary outcomes include measurements of visceral adipose tissue and liver fat, also tracked over two years. Researchers use this data to evaluate health status and disease prevalence. Pregnant women and individuals with metal implants in the CT scan area are excluded to ensure accurate imaging and safety.

China Health Big Data