Clinical Research Directory

Inclusion Criteria: Patients aged 50 years or older with a new diagnosis of first unprovoked proximal deep vein thrombosis (DVT) and/or pulmonary embolism (PE) will be eligible to participate into the study. Unprovoked VTE is defined as the absence of any of the following predisposing factors: 1. active malignancy (known malignancy, progressive and/or treated during the last 5 years) except for adequately treated basal or squamous cell carcinoma; Patients whose state of health suggests the presence of cancer at the time of diagnosis of VTE cannot be included in the protocol 2. recent (less than 3 months) paralysis, paresis or plaster immobilization of the lower extremities; 3. recently bedridden for period of 3 or more days, or major surgery, within the previous 12 weeks requiring general or regional anaesthesia; 4. previous unprovoked VTE; 5. known thrombophilia (hereditary or acquired) Exclusion Criteria: Patients will be excluded from the study if they have any of the following criteria: 1. Refusal or inability to provide informed consent; 2. Hypersensitivity to 18F-FDG or any of the excipients according to the product monograph; 3. Unavailable to follow-up. 4. VTE while on anticoagulation (e.g apixaban, rivaroxaban, edoxaban, dabigatran, warfarin)