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A primary study of slice optimization of dynamic contrast-enhanced CT scan and its practical application on solitary pulmonary nodules / 中华放射学杂志
Chinese Journal of Radiology ; (12)2000.
Article in Chinese | WPRIM | ID: wpr-560502
ABSTRACT
0.05).(2)In 67 cases with pre-and post-image selection and reconstruction in single-slice or twin-slice helical CT,the slice concordance rate in measurement was 20.98% and 97.01%,respectively(?2=80.22,P=0.00).The slice concordance was all accomplished with the same method in multi-slice helical CT in 5 cases.(3)Peak heights and SPN-to-aorta ratios of malignant [(38.48?14.32)HU,(19.64?9.52)% ] and inflammatory SPN [(42.48?11.55)HU,(21.14?7.77)%] were significantly higher than that of benign SPN [(9.52?3.78)HU,(3.41?1.86)%,P0.05).Slice optimization of dynamic contrast-enhanced CT scan improved the diagnostic accuracy of SPN from 78% to 80%.Conclusion No significant efficacy was found in the attenuation between primitive images and reconstructive images with the same slice thickness of homogenous material.Slice concordance of dynamic contrast enhanced spiral CT could reflect objectively the morphological appearance and CT value changes of solitary pulmonary nodules,and may improve the veracity of diagnosis.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Radiology Year: 2000 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Radiology Year: 2000 Type: Article