Computer-assisted detection of pulmonary embolism
نویسندگان
چکیده
In this study, a computerized method for detection of pulmonary embolism in spiral CT angiography was developed. The method is based on segmentation of pulmonary vessels to limit the search space for thrombi. Several three-dimensional image features such as local contrast, seco nd derivatives, and distance to the vessel wall were employed for detection of thrombi and for elimination of false positives. Volume rendering was applied for display of detection results. Preliminary results based on several clinical data show the potential of our method.
منابع مشابه
Computer-aided Diagnosis of Pulmonary Embolism in Opacified CT Images
Pulmonary embolism (PE) is an extremely common and highly lethal con-dition that is a leading cause of death in all age groups. Over the past 10years, computed tomography (CT) scanners have gained acceptance as aminimally invasive method for diagnosing PE. In this manuscript, a frame-work for computer-aided diagnosis of PE in contrast-enhanced CT imagesis presented. It consi...
متن کاملOvarian hyperstimulation syndrome and development of pulmonary embolism in pregnancy: case report
Ovarian hyperstimulation syndrome caused by assisted reproductive technology can lead to pulmonary embolism, a rare but serious side effect.
متن کاملLocal Characteristic Features for Computer Aided Detection of Pulmonary Embolism in CT Angiography
An automated detection system is constructed for detecting pulmonary embolism from computed tomographic pulmonary angiographic images. Our previous work has presented novel effective algorithms to identify suspicious PE regions from images and reduce false detections by designing powerful classifiers. However, these techniques have to take effects in conjunction with discriminative features use...
متن کاملDiagnosis of thromboembolic disease: Combined ventilation perfusion lung scan and compression ultrasonography
The clinical management of pulmonary embolism and deep venous thrombosis of the legs are similar and requires prolonged anticoagulation therapy. The standard diagnostic approach in patients suspected of pulmonary embolism is ventilation-perfusion (V/Q) lung scan and compression ultrasonography to detect deep venous thrombosis. This retrospective study analyzed the role of V/Q lung scan an...
متن کاملPeriodontal Pockets as a Potential Source of Infection: a Case of Possible Odontogenic Septic Pulmonary Embolism
Although dental foci can be sources of bacteremia and bacterial endocarditis, hematogenous spread of infection presented with septic pulmonary embolism apparently is rare. The occurrence of septic pulmonary embolism in patients with periodontal disease without suppurative thrombophlebitis of the great vessels of the neck is well documented but to our knowledge, there is no report on septic pulm...
متن کامل