Reduction of thoracic aorta motion artifact with high-pitch 128-slice dual-source computed tomographic angiography: a historical control study
| Autor: | Takeshi Shimazu, Isao Ukai, Yasuyuki Kuwagata, Yoshiyuki Watanabe, Hiroshi Ogura, Toshimitsu Hamasaki, Takeo Azuma, Junichiro Nakagawa, Mitsuo Ohnishi, Osamu Tasaki, Kenichi Tahara |
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| Rok vydání: | 2013 |
| Předmět: |
Tachycardia
Male medicine.medical_specialty Scanner Radiography Aortic Diseases Aorta Thoracic Sensitivity and Specificity Radiography Dual-Energy Scanned Projection Motion medicine.artery medicine Thoracic aorta Humans Radiology Nuclear Medicine and imaging Aged Aorta Artifact (error) business.industry Angiography Reproducibility of Results Radiographic Image Enhancement Descending aorta cardiovascular system Female Radiography Thoracic Radiology Tomography medicine.symptom business Artifacts Tomography X-Ray Computed |
| Zdroj: | Journal of computer assisted tomography. 37(5) |
| ISSN: | 1532-3145 |
| Popis: | Objectives Electrocardiogram-gated imaging combined with multi-detector row computed tomography (MDCT) has reduced cardiac motion artifacts, but it was not practical in the emergency setting. The purpose of this study was to evaluate the ability of a high-pitch, 128-slice dual-source CT (DSCT) scanner to reduce motion artifacts in patients admitted to the emergency room. Methods This study comprised 100 patients suspected of having thoracic aorta lesions. We examined 47 patients with the 128-slice DSCT scanner (DSCT group), and 53 patients were examined with a 64-slice MDCT scanner (MDCT group). Six anatomic areas in the thoracic aorta were evaluated. Results Computed tomography images in the DSCT group were distinct, and significant differences were observed in images of all areas between the 2 groups except for the descending aorta. Conclusions The high-pitch DSCT scanner can reduce motion artifacts of the thoracic aorta and enable radiological diagnosis even in patients with tachycardia and without breath hold. |
| Databáze: | OpenAIRE |
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