| 邓燕云,王全师,吴湖炳.比较胃肠间质瘤与胃肠原发淋巴瘤18F-FDG PET/CT征象[J].中国医学影像技术,2014,30(6):881~884 |
| 比较胃肠间质瘤与胃肠原发淋巴瘤18F-FDG PET/CT征象 |
| 18F-FDG PET/CT features of gastrointestinal stromal tumor and primary gastrointestinal lymphoma：Comparison analysis |
| 投稿时间：2014-04-02 修订日期：2014-04-30 |
| DOI： |
| 中文关键词: 胃肠道间质肿瘤 淋巴瘤 氟脱氧葡萄糖F18 体层摄影术,发射型计算机,单光子 |
| 英文关键词:Gastrointestinal stromal tumors Lymphoma Fluorodeoxyglucose F18 Tomography,emission-computed,single-photon |
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| 中文摘要: |
| 目的 比较胃肠间质瘤（GIST）与胃肠原发淋巴瘤（PGIL）18F-FDG PET/CT征象的差异。方法 回顾性分析经病理证实的21例GIST患者和26例PGIL患者的18F-FDG PET/CT资料，计算CT和18F-FDG PET对病变的检出率，比较GIST和PGIL病灶最大标准摄取值（SUVmax）和最大厚度（THKmax）及18F-FDG PET/CT征象差异。结果 CT检出20例（20/21，95.24%）GIST、24例（24/26，92.31%）PGIL；18F-FDG PET对GIST和PGIL检出率均为100%。PGIL病灶SUVmax显著高于GIST（11.14±7.78 vs 7.30±4.44，P<0.05），二者THKmax差异无统计学意义[(5.61±4.30)cm vs(3.80±2.16)cm,P>0.05]。GIST多为单发病灶（14/21，66.67%），以胃肠壁局限性增厚为主（18/21，85.71%），1例（1/21，4.76%）继发性肠腔扩张，7例发生转移；PGIL多为多发病灶（15/26，57.69%），以胃肠壁弥漫性增厚为主（15/26，57.69%），5例（5/26，19.23%）继发性肠腔扩张，20例发生转移。结论 GIST和PGIL的18F-FDG PET/CT特点各异，有助于鉴别诊断。 |
| 英文摘要: |
| Objective To compare the 18F-FDG PET/CT features of gastrointestinal stromal tumor (GIST) and primary gastrointestinal lymphoma (PGIL). Methods 18F-FDG PET/CT data of 21 patients with GIST and 26 patients with PGIL confirmed by pathology were retrospectively analyzed. The detection rate of CT and 18F-FDG PET in detecting GIST and PGIL were calculated. The maximal standard uptake value (SUVmax) and maximal thickness (THKmax) of the lesions and the signs of 18F-FDG PET/CT in GIST and PGIL were compared. Results Twenty GIST were detected by CT with detection rate of 95.24% (20/21), and 24 PGIL were detected with detection rate of 92.31% (24/26). The detection rate of 18F-FDG PET was 100% in both GIST and PGIL. SUVmax of PGIL was significantly higher than that of GIST (11.14±7.78 vs 7.30±4.44, P<0.05).No significant difference was found in THKmax of GIST and PGIL [(5.61±4.30)cm vs (3.80±2.16)cm, P>0.05). Most of GIST were single (14/21, 66.67%) with local thickened gastrointestinal wall (18/21, 85.71%), secondary enteric cavity dilatation was observed in 1 case (1/21, 4.76%), while metastases occurred in 7 cases. Most of PGIL cases were multiple (15/26, 57.69%) with diffuse thickened gastrointestinal wall (15/26, 57.69%), secondary enteric cavity dilatation was observed in 5 cases (5/26, 19.23%), while metastases occurred in 20 cases. Conclusion 18F-FDG PET/CT features of GIST and PGIL are distinctly different, being helpful to differential diagnosis. |
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