1.Differentiation Between Tuberculosis and Metastasis in DiffusePulmonary Miliary Nodules: Evaluation with Helical CT
Zhentuan YUAN ; Jianqun YU ; Zhigang YANG ; Fangyi LIAO
Journal of Practical Radiology 2000;0(02):-
Objective To evaluate the helical CT features of miliary tuberculosis and pulmonary miliary metastatic nodules so thatimproving the correct diagnosis of the miliary lung diseases.Methods Helical CT or high resolution CT features (distribution and size of miliary nodule and attenuation of the lung) of 34 patients with miliary tuberculosis and 54 patients with pulmonary miliary metastatic nodules were retrospectively reviewed.Results The uniformly distribution and size of the bilateral lung were observed in 28 (28/34, 82%) and 23 (23/34, 68%) cases of miliary tuberculosis,5(5/54, 9%) and15(15/54, 28%)cases of pulmonary metastases ( P
2.Application of multi-slice spiral CT in assessment of left ventricular function.
Zhentuan YUAN ; Jianqun YU ; Zhigang YANG
Journal of Biomedical Engineering 2007;24(6):1432-1436
When compared with the conventional CT, the multi-slice spiral CT has an array of prominent features such as better spatial resolution, shorter examination time and higher acquisition speed, so that accurate measurement and strong image postprocessing can be performed. It can not only diagnose coronary artery and great vessels diseases, but also evaluate the heart function basing on the rich information therein provided by MSCT. In recent years, it has been widely used in the diagnosis of cardiovascular diseases.
Coronary Artery Disease
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diagnosis
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Humans
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Image Processing, Computer-Assisted
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methods
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Sensitivity and Specificity
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Tomography, Spiral Computed
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methods
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Ventricular Function, Left
3.The features of adults' coronary artery anomalies shown by 64-multi-detector rows CT.
Zhentuan YUAN ; Jianqun YU ; Youyi ZHANG ; Hongmei YUAN
Journal of Biomedical Engineering 2009;26(3):496-503
To analyze the adults' coronary artery anomalies revealed by 64-MDCT, we retrospectively analyzed 34 cases of coronary artery anomalies (26 males and 8 females, averagely aged 53. 4 years with a range from 30 to 72 years). Multi-plannar reconstruction (MPR), maximum intensity projection (MIP), surface shadow display (SSD) and volume rendering (VR) were used to demonstrate the anomalous coronary artery. We found 4 cases of RCA from the left coronary sinus, 8 cases with secondary RCA, 1 case with high locations of left main (LM) segments from left sinus of valves, 1 case with LAD originated from main pulmonary artery, 3 cases with separate origin of LAD and LCX. Ten cases with myocardial bridge were shown (9 cases in LAD, 1 case in LCX); coronary fistula was seen in 2 cases (one was RCA-RA fistula, another was LAD-RV fistula), coronary aneurysm was found in 2 cases. Three cases in RCA were short and small. In conclusion, 64-MDCT is a good choice for diagnosing the anomalous coronary artery.
Adult
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Aged
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Coronary Vessel Anomalies
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diagnostic imaging
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Female
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Humans
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Male
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Middle Aged
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Retrospective Studies
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Tomography, Spiral Computed
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methods