| LIN Wei,MIAO Ying,CHEN Bin.Application of STIR sequence in MRI of NPC[J].Chinese Journal of Radiological Medicine and Protection,2005,25(1):88-91 |
| Application of STIR sequence in MRI of NPC |
| Received:September 18, 2004 |
| DOI： |
| KeyWords:Magnetic resonance imaging Short-tau inversion recovery Nasopharyngeal carcinoma |
| FundProject: |
| Author Name | Affiliation | E-mail | | LIN Wei | Department of Radiology, Sir Run Run Shaw Hospital of Medical School, Zhejiang University, Hangzhou 310016, China | linwei7012@yahoo.com.cn | | MIAO Ying | Department of Radiology, Sir Run Run Shaw Hospital of Medical School, Zhejiang University, Hangzhou 310016, China | | | CHEN Bin | Department of Radiology, Sir Run Run Shaw Hospital of Medical School, Zhejiang University, Hangzhou 310016, China | | | 沈国惠 | Department of Radiology, Sir Run Run Shaw Hospital of Medical School, Zhejiang University, Hangzhou 310016, China | | | 李琦 | Department of Radiology, Sir Run Run Shaw Hospital of Medical School, Zhejiang University, Hangzhou 310016, China | |
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| Abstract:: |
| Objective To compare the application of STIR sequence and FSE T2WI in examination of nasopharyngeal carcinoma(NPC). Methods Fifty cases of NPC were scanned by both FSE T2WI and STIR sequence.The contrast-to-noise ratio(C/Ns) and clearness of cancer boundary were compared between the two types of image.The diagnosis of all cases were confirmed by operation and pathology. Results NPC of all the 50 cases exhibited hyperintensity on the T2-weighted images like fat tissue,and cancer boundaries were not clear.They were also hyperintense on STIR sequence,but were more clear in internal structure and boundary.STIR had a higher C/Ns than FSE T2WI,C/Ns was 20.41±3.87(mean±standard error)for STIR and 8.24±1.74 for FSE T2WI,t=20.29,P<0.01.The results of imaging signs of the NPC between STIR images and FSE T2WI has significant statistic difference for edge of lesion(χ2=23.19,P<0.01)and detalis of lesion(χ2=16.23, P<0.01). Conclusion In detecting NPC,MR imaging STIR appears to be more sensitive than FSE T2WI and has a higher C/Ns than the later. |
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