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《Radiologic Practice》 2009-11
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Application of Multi-slice Spiral CT with Multi-planar Reformation and Curve Planar Reformation Post-processing Techniques in the Diagnosis of Adult Intussusception

HU Bao-hua,ZHOU Hui,RAO Min,et al.Department of Radiology,Jiading Center Hospital,Shanghai 201800,P.R.China  
Objective:To investigate the value of multi-slice spiral CT (MSCT) with multi-planar reformation (MPR) and curve planar reformation (CPR) post-processing techniques in the diagnosis of adult intussusception.Methods:MSCT findings of 23 adults with surgery and pathology proved intussusception were retrospectively analyzed.The raw data were post-processed by multi-planar reformation (MPR),curve planar reformation (CPR) and medial axis reformation (MAR),the length of intussusceptions were measured.Results:All of the intussusceptions were classified as follows:small intestine-small intestine type (6 cases),ileum-ascending colon type (5 cases) and colon-colon type (12 cases).The direct signs of intussusception on axial images were "target sign" (19 cases)" and comet tail sign with kidney-like mass" (14 cases).While axial images in combination with MPR were used,more direct signs were revealed including "target sign" (23 cases)" and comet tail sign in combination with kidney-like mass (20 cases).The length of intussusceptions ranged from 3.80~27.3cm,mean=(10.6±5.8)cm.There were no significant differences between the measurement on CT and surgical fin-dings.Conclusion:MPR is useful to improve the detecting rate of specific signs of adult intussusceptions,CPR and MAR provide important information for the diagnosis.
【CateGory Index】: R656.7;R816.5
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