Abstract: With global population aging, the incidence of deep vein thrombosis (DVT) in elderly populations is steadily increasing, posing significant challenges for early diagnosis and carrying a risk of potentially fatal pulmonary embolism (PE). Recently, diagnostic imaging techniques have shifted from traditional invasive venography to safer, more convenient non-invasive methods, including ultrasound, computed tomography venography (CTV), and magnetic resonance imaging (MRI). Ultrasound, with its rapid, economical, and bedside applicability, has become a key initial screening modality. CTV is particularly suited for complex, deep-seated cases and enables integrated evaluation of both DVT and PE in a single examination. MRI, distinguished by superior soft-tissue contrast, shows significant advantages in diagnosing deep venous lesions and evaluating thrombus characteristics. Additionally, emerging technologies such as molecular imaging and artificial intelligence continue to advance, with promising future prospects for broad application in the clinical management of DVT in elderly patients.

Key words: aged, deep vein thrombosis, imaging diagnosis, molecular imaging, artificial intelligence