Pulmonary Embolism (PE)
Understanding Pulmonary Embolism (PE) found on Pulmonary Arteries Computed Tomography imaging. Learn what this finding means and what steps to take next.
Radiographic Appearance
Computed Tomography FindingIntraluminal filling defect in pulmonary arteries on CT angiography; possible wedge-shaped infarcts.
Clinical Significance
Potentially life-threatening; imaging confirms and helps risk stratify.
What is Pulmonary Embolism?
Blood clot lodged in pulmonary arteries, commonly from DVT. CTA chest is the gold standard for diagnosis.
Imaging Appearance
- Central or peripheral filling defects
- Westermark sign or wedge-shaped peripheral infarct
- Right heart strain: RV enlargement, reflux of contrast into IVC
Clinical Significance
- Determines need for anticoagulation or thrombectomy
- Right-heart strain implies higher risk
Symptoms
- Sudden dyspnea, pleuritic chest pain
- Tachycardia, hypoxia, possible syncope
Diagnosis
- CTA chest with IV contrast
- Labs: renal function for contrast use; others per clinician
Treatment
- Anticoagulation
- Thrombolysis or thrombectomy for massive/submassive PE
- IVC filter in select cases
Prognosis
- Good with prompt therapy; depends on clot burden and comorbidities
What Should You Do?
- Seek emergency care for sudden shortness of breath or chest pain.
- Adhere to anticoagulation plan and follow-up.
- Address DVT prevention: mobility, compression, risk factor control.
Medical Disclaimer: Educational only; follow clinician instructions.
Correlate with Lab Results
Doctors often check these blood tests when Pulmonary Embolism (PE) is found on imaging:
Related Imaging Terms
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