Impact factors of motion artifacts in chest dual-energy X-ray radiography / 中国医学影像技术
Chinese Journal of Medical Imaging Technology
;
(12): 1080-1083, 2020.
Artículo
en Chino
| WPRIM
| ID: wpr-860977
ABSTRACT
Objective:
To observe the predilection sites of motion artifacts on chest DR dual-energy subtraction images, and to analyze the impact factors.Methods:
Dual-energy subtraction chest images of 128 cases were analyzed. The position of motion artifacts were observed, and the length and width were measured and compared, and the correlations of heart rate and motion artifacts at different sites were analyzed.Results:
Among 128 cases of dual-energy subtraction chest images, 115 cases showed black-and-white striped motion artifacts, 87 (75.65%) at left ventricular segment, 82 (71.30%)at aortic arch segment, 60 (52.17%)at right cardiac margin, 42 (36.52%) at diaphragmatic margin, 30 (26.09%)at left atrial auricular pulmonary segment and 27 (23.48%) at superior vena cava. Statistical differences of the mean length and width of motion artifacts were found among left ventricular segment, aortic arch segment and right cardiac margin (F=4.59, 3.46, both P<0.05). Heart rate was positively correlated with motion artifacts at left ventricular segment and aortic arch segment (r=1.00, 0.99, both P<0.05).Conclusion:
Cardiac pulsation and breathing exercises can cause occurrence of motion artifacts in chest DR dual-energy subtraction images, mostly located at left ventricular segment and aortic arch segment. The faster the heart rate, the more obvious the motion artifacts.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Chinese Journal of Medical Imaging Technology
Año:
2020
Tipo del documento:
Artículo
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