Feb 14, 2025 · Pulmonary embolism (PE) refers to partial or complete embolic occlusion of one or more pulmonary arteries, most commonly due to thrombus. PE is apparent as a ventilated perfusion defect on V/Q scan 35. Non-thrombotic pulmonary emboli sources inc...

Jul 18, 2024 · The computed tomography pulmonary angiogram (CTPA/CTPE) is a commonly performed diagnostic examination to exclude pulmonary emboli (PE).Each radiology department will have a slightly different method for achieving the same outcome, i.e. diagnostic density of the main pulmonary artery and its branches.. There are two principal approaches for performing a CTPA of high diagnostic quality:

4TO AÑO IUNIR 2025 - TEP by JULIETA CAROLINA ESPINOSA; Unlisted playlists. This case is used in 19 unlisted playlists.

Apr 9, 2025 · The atoll sign or reversed halo sign refers to focal ground-glass opacity with a peripheral ring of consolidation which may be complete or incomplete. The sign was originally described in organizing pneumonia but can also occur in infections, inf...

Dec 7, 2024 · Total knee arthroplasty (TKA), total knee replacement (TKR), or tricompartmental knee replacement is an orthopedic procedure whereby the three articular surfaces of the knee (femoral, tibial, and patellar) are replaced by prosthetic components. ...

Jul 11, 2023 · Total hip arthroplasty (THA), also known as total hip replacement (THR), is an orthopedic procedure that involves the surgical excision of the femoral head and cartilage of the acetabulum and replacement of the joint with articulating femoral and acetabular components.It is a commonly performed procedure usually with very good results and return to function.

Oct 28, 2024 · Chronic pulmonary emboli are mainly a consequence of incomplete resolution of pulmonary thromboembolism. Radiographic features CTPA vascular CT signs include direct pulmonary artery signs complete obstruction partial obstruction eccentric ...

Apr 4, 2025 · Epidemiology. Pulmonary infarction occurs in the minority (10-15%) of patients with PE 1.However, in a necropsy study of those with lethal PE, 60% of cases developed infarction 2.. Historically, it was thought that pulmonary infarction was more common in older patients with comorbidities, especially coexisting cardiovascular disease and underlying malignancy, but rare in the young and ...

Jul 25, 2024 · Learn about the complications of total hip arthroplasty, including aseptic loosening, infection, dislocation, and periprosthetic fractures.

Mar 28, 2025 · The halo sign in chest imaging is a feature seen on lung window settings consisting of ground glass opacity surrounding a pulmonary nodule, mass, or consolidation. It is typically seen in angioinvasive aspergillosis. Pathology It is a non-speci...