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[摘要]目的 探討128層螺旋CT檢查及多平面重組(MPR)后處理技術在胃腸間質瘤(GIST)術前診斷中的應用價值,為今后的臨床診斷工作提供有價值的參考依據。方法 選取2017年1月~2019年6月我院收治的20例經手術病理及免疫組織化學證實的GIST患者作為研究對象,對其進行128層螺旋CT檢查,并應用MPR后處理技術,以病理及免疫組化結果為依據,統計病灶檢出情況、CT檢查及MPR后處理技術的定位、定性結果。結果 患者經CT檢查及MPR后處理技術,檢出GIST病灶位于胃部者13例,位于小腸者5例,位于十二指腸者2例;黏膜狀態表現為光滑者13例,黏膜存在明顯潰瘍者7例;囊實性15例,實性5例;增強掃描可觀察到腫瘤均勻強化者12例,不均勻強化者8例;均勻強化患者中,病灶確診為良性者11例,潛在惡性1例;不均勻強化患者中,病灶確診為良性者2例,惡性者6例。CT檢查及MPR后處理技術的定位及定性結果與病理檢查比較,差異無統計學意義(P>0.05)。結論 128層螺旋CT檢查及MPR后處理技術可獲得準確的定位與定性結果,具有較高的臨床診斷準確率,值得關注并推廣。
[關鍵詞]128層螺旋CT;多平面重組后處理技術;胃腸間質瘤;術前診斷
[中圖分類號] R814.42? ? ? ? ? [文獻標識碼] A? ? ? ? ? [文章編號] 1674-4721(2020)7(a)-0162-03
Application value of 128-slice spiral CT and multi-planar post-processing technology in preoperative diagnosis of gastrointestinal stromal tumor
WU Ying-lan
Department of Imaging, the First People′s Hospital of Fuzhou City in Jiangxi Province, Fuzhou? ?344000, China
[Abstract] Objective To analyze the application value of 128-slice spiral CT and multi-planar (MPR) post-processing technology in preoperative diagnosis of gastrointestinal stromal tumor (GIST), so as to valuable reference for clinical diagnosis in the future. Methods From January 2017 to June 2019, 20 GIST patients confirmed by surgical pathology and immunohistochemistry were selected as the research objects. A total of 128 slice spiral CT was performed on them, and MPR post-processing technology was applied. Based on the results of pathology and immunohistochemistry, the detection of lesions, the location and qualitative results of CT and MPR post-processing technology were statistically analyzed. Results By CT and MPR post-processing technology, 13 cases of gist were located in stomach, 5 in small intestine and 2 in duodenum. There were 13 cases of mucosal appearance and 7 cases of obvious ulcer in mucosa. There were 15 cases of solid capsule and 5 cases of solidity. Enhanced scanning revealed 12 cases of uniform tumor enhancement and 8 cases of uneven enhancement. Among the patients with uniform enhancement, 11 cases were diagnosed as benign and 1 case was potentially malignant. Among the patients with uneven enhancement, the lesions were diagnosed as benign in 2 cases and malignant in 6 cases. There were no significant differences between the location and qualitative results of CT and MPR post-processing technology and pathological examination (P>0.05). Conclusion 128-slice spiral CT and MPR post-processing technology can obtain accurate localization and qualitative results, and have high clinical diagnostic accuracy, which is worthy of attention and promotion.
CT檢查為目前GIST的主要檢查手段,其不僅可以對病灶形態、內部結構進行顯示,并且能夠觀察包塊與周邊組織器官的毗鄰關系,依據影像特征對病變性質進行判斷,對術前治療方案選擇、術后監測等均具有重要作用[10-11]。經實踐證實,在影像學診斷過程中,多層螺旋CT具有掃描時間短、定位準確、掃描速度快等優勢,能夠對腫瘤血供嗆咳、腫瘤供血血管進行動態觀察,可為臨床診斷提供重要的參考信息[12-13]。
本研究選取我院收治的20例GIST患者作為研究對象進行回顧性分析,結果顯示,CT檢查及MPR后處理技術的定位及定性結果與病理檢查結果比較,差異無統計學意義(P>0.05)。提示采用128層螺旋CT檢查及MRP后處理技術可取得高質量的圖像,方便診斷醫師對GIST發生具體部位、腫瘤的大小、形態邊界、密度、生長方式、胃腸道管腔、淋巴結或遠處轉移等情況進行精確分析,有利于提高診斷定位及定性準確率,方便臨床進行手術治療及預后處理,降低了手術風險及醫療事故發生率。MPR后處理技術,是一個非常方便實用的技術。利用該技術對全身臟器的各種病變進行冠狀位、矢狀位、水平位和斜位的重建,該技術在GIST的應用,使得醫師能夠獲得更全面、更立體的圖像信息[14-15]。
綜上所述,128層螺旋CT檢查及MRP后處理技術可以取得高質量的圖像,并且術后可隨訪復查,方便診斷醫師對病變進行精確診斷,提高了診查效率,并可有效地指導臨床治療,對于優化提升醫院的診療水平以及改善患者預后均具有積極意義。
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(收稿日期:2019-08-27)