
This study aimed to evaluate the role of noncontrast computed tomography (NCCT) in diagnosing pulmonary thromboembolism (PTE). Using a single-center retrospective analysis, 50 subjects underwent imaging for suspected PTE. Thrombus identification relied on differences in attenuation between thrombus and blood pool. Results showed a mean difference in attenuation of 34.07 Hounsfield units (HU), with an optimal cut-off of 20 HU for PTE diagnosis. NCCT demonstrated 89.47% sensitivity and 83.33% specificity. While computed tomography pulmonary angiography (CTPA) remains the gold standard, NCCT offers a radiation and contrast-reducing alternative for PTE diagnosis.
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