In:
Journal of Medical Imaging and Health Informatics, American Scientific Publishers, Vol. 11, No. 1 ( 2021-01-01), p. 223-229
Abstract:
Objective : To study the MRI and CT characteristics of different periods of acute ischemic stroke and evaluate its diagnostic value by using semi-automatic mention segmentation method. Methods : CT, conventional MRI and DWI were performed in 64 patients with acute ischemic
stroke. The average ADC value and average relative ADC (rADC) value of infarct lesions were measured and statistically analyzed. Results : There were no significant differences in CT, conventional MRI, and DWI signal characteristics between 1 and 7 days after the onset of acute ischemic
stroke. The average ADC value and the average rADC value decreased, but the average rADC in the infarct area increased with time. The rADC value was statistically significant with the onset of 1 d , 2 d , 3 d , and 4 d ( P 〈 0.05), but not statistically significant
with the onset of 5 d and 6 d ( P 〉 0.05). Conclusion : In the image processing method of semi-automatic segmentation method, the characteristics of CT, conventional MRI, and DWI signals combined with the evolution of rADC values over time can help to judge the pathophysiological
changes of acute ischemic stroke, which is ischemic. Stroke staging and treatment guidance are provided.
Type of Medium:
Online Resource
ISSN:
2156-7018
DOI:
10.1166/jmihi.2021.3430
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2021
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