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《Chinese Journal of Medical Imaging Technology》 2011-08
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Stability of measurement on apparent diffusion coefficient in benign cervical lymph nodes with the neurovascular coil or the body coil

ZHONG Jing,CHEN Yun-bin(Department of Radiology,Fujian Cancer Hospital,Fuzhou 350014,China)  
Objective To observe whether there was any difference of ADC as well as the exponential value of ADC(eADC) of benign cervical lymph nodes between using the neurovascular coil and the body coil.Methods Fifteen healthy volunteers underwent DWI using both 8-channel the neurovascular coil and the body coil within one day.The images were all obtained with a diffusion factor(b values) using 0 and 800 s/mm2.ADC and eADC map were obtained and compared about the characteristics of bilateral(30) and unilateral(15) benign cervical lymph nodes.The ADC and eADC of lymph nodes were measured,the results were compared statistically between the two different scanning coils.Results The measurable images for ADC were successfully obtained in all subjects.The average value of ADC scanned by neurovascular coil was(0.892±0.165)×10-3 mm2/s,average value of eADC was(0.425±0.068)×10-3 mm2/s.The average value of ADC by body coil was(0.857±0.142)×10-3 mm2/s,average value of eADC was(0.432±0.057)×10-3 mm2/s.There was no statistically difference of the value of the ADC and eADC of lymph nodes between the two different scanning coils,no matter bilateral or lateral side.Conclusion The signals acquired whether from the neurovascular coil or from the body coil have no influence on the measurement of ADC of benign cervical lymph nodes.
【Fund】: 福建省卫生厅医学创新项目(2009-CXB-29)
【CateGory Index】: R816.3
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