Application of 16-detector row spiral CT for pulmonary angiography and reconstruction techniques in diagnosis of pulmonary embolism in elderly patients / 中华老年医学杂志
Chinese Journal of Geriatrics
; (12): 121-124, 2011.
Article
in Zh
| WPRIM
| ID: wpr-413885
Responsible library:
WPRO
ABSTRACT
Objective To study the application of pulmonary angiography and reconstruction techniques with 16-detector row spiral CT in the diagnosis of pulmonary embolism (PE) in the elderly.Methods Twenty-four elderly patients with suspected pulmonary thromboembolism received detection of CT and pulmonary artery angiography ( CTPA ) on 16-detector MSCT.Post-reconstruction techniques included maximum intensity projection (MIP), volume rendering (VR)and multiple planar reformation (MPR). Results A total of 161 pulmonary artery thrombi were detected in 24 elderly patients. The direct signs of pulmonary embolism included total occlusion (16.8%, 27/161), partial filling defect (67.7%, 109/161) and central filling defect or track sign (15.5%, 25/161). A total of 161 pieces of pulmonary thrombi were detected in transect image, 153 (95.0%) in MPR, 113 (70.2%) in MIP and 69 (42.9%) in VR. The transect image excelled evidently MIP and VR image in displaying pulmonary thrombi, especially the thrombi in pulmonary lobe and pulmonary artery branch (χ2 =235.36 and 243.41, P<0.05). Conclusions The 16-detector row spiral CT pulmonary angiography is non-invasive, fast and high sensitive, it should be the first choice for the diagnosis of PE in the elderly.
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Index:
WPRIM
Type of study:
Diagnostic_studies
Language:
Zh
Journal:
Chinese Journal of Geriatrics
Year:
2011
Type:
Article