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中华结直肠疾病电子杂志 ›› 2019, Vol. 08 ›› Issue (05) : 461 -468. doi: 10.3877/cma.j.issn.2095-3224.2019.05.005

所属专题: 文献

论著

蓝激光内镜结合JNET分型对早期结直肠癌及癌前病变的诊断价值
刁文秀1, 沈磊1,()   
  1. 1. 430060 武汉大学人民医院消化内科 湖北省消化微创诊疗临床医学中心
  • 收稿日期:2019-02-28 出版日期:2019-10-25
  • 通信作者: 沈磊

The diagnostic ability of blue laser imaging combined with JNET classification for early colorectal cancer and precancerous lesions

Wenxiu Diao1, Lei Shen1,()   

  1. 1. Department of Gastroenterology, Renmin Hospital of Wuhan University, Hubei Digestive Clinical Center for Minimally Invasive Diagnosis and Treatment, Wuhan 430060, China
  • Received:2019-02-28 Published:2019-10-25
  • Corresponding author: Lei Shen
  • About author:
    Corresponding author: Shen Lei, Email:
引用本文:

刁文秀, 沈磊. 蓝激光内镜结合JNET分型对早期结直肠癌及癌前病变的诊断价值[J]. 中华结直肠疾病电子杂志, 2019, 08(05): 461-468.

Wenxiu Diao, Lei Shen. The diagnostic ability of blue laser imaging combined with JNET classification for early colorectal cancer and precancerous lesions[J]. Chinese Journal of Colorectal Diseases(Electronic Edition), 2019, 08(05): 461-468.

目的

探讨蓝光激光成像结合JNET分型对结直肠病灶浸润深度的判断价值。

方法

本研究为前瞻性研究,收集武汉大学人民医院消化内科2016年8月至2018年7月蓝光激光内镜下观察694例结直肠病灶。根据JNET分型,分析病灶内镜下的表现以判断其病理性质和浸润深度。以病理诊断为金标准,并观察各类型病灶内镜下诊断的敏感性,特异性,阳性预测值,阴性预测值和诊断准确性。

结果

在所有病灶中,共有500例息肉样病灶和194例浅表型病灶。在所有病灶、息肉样病灶和浅表型病灶中,Type1型诊断准确率分别为99.1%,99.2%,99.0%;Type2A型诊断准确率分别为80.7%,81.4%,78.9%;Type 2B型诊断准确率分别为78.0%,78.8%,75.8%;Type3型诊断准确率分别为96.4%,96.6%,95.9%,与NBI的诊断率相似。息肉样病灶和浅表性病灶的诊断率差异无统计学意义。

结论

蓝激光成像结合JNET分类是判断结直肠病灶浸润深度的有效工具,结直肠病灶的形态学差异不是影响JNET分型在结直肠病灶中应用的因素。

Objective

To investigate the diagnostic performance of blue laser imaging (BLI) combined with JNET classification for analyzing invasive depth of colorectal lesions.

Methods

A collection of 694 cases of colorectal lesions under BLI in our hospital from August 2016 to July 2018 was performed. The imagings of lesions were analyzed to assess their pathological properties and invasive depth according to JNET classification. The pathological diagnosis of biopsy tissue was the gold standard. The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy were observed.

Results

In all lesions, there were 500 polypoid lesions and 194 superficial lesions. In all lesions, polypoid lesions and superficial lesions, the diagnostic accuracy of Type 1 was 99.1%, 99.2% and 99.0% respectively; the diagnostic accuracy of Type 2A was 80.7%, 81.4% and 78.9% respectively; the diagnostic accuracy of Type 2B was 78.0%, 78.8%, and 75.8% respectively. The diagnostic accuracy of Type 3 was 96.4%, 96.6%, and 95.9% respectively, which was similar to the diagnosis accuracy of NBI. There was no significant difference in the diagnostic accuracy between polypoid lesions and superficial lesions.

Conclusion

Blue laser imaging combined with JNET classification is an effective tool for judging the depth of invasion of colorectal lesions. Morphological differences in colorectal lesions are not factors that influence the application of JNET classification in colorectal lesions.

图1 BLI下考虑诊断为JNET1型结肠病灶。1A:BLI白光模式下可见无蒂扁平息肉样隆起,表面充血;1B:LCI模式下病灶黏膜更红,周围正常黏膜更白,病灶界限清楚;1C:BLI-bright模式下病灶与周围正常黏膜界限明显;1D:BLI-contrast放大模式下病灶微血管不可见,表面微结构在内镜下表现为白点,与周围正常黏膜微结构内镜下表现一致;1E:内镜下ESD手术完整切除病灶;1F:病理结果(HE染色×100)提示SSP
图2 BLI下考虑诊断为JNET2A型结肠病灶。2A:BLI白光模式下可见带蒂息肉样隆起,表面充血;2B:LCI模式下病灶黏膜更红,周围正常黏膜更白,病灶界限清楚;2C:BLI-bright模式下病灶呈棕色,与周围正常黏膜界限明显,可见管状微结构;2D:BLI-contrast放大模式下病灶黏膜微血管可见,形状及分布尚规则,呈螺旋状;微腺管形状规则,呈管状;2E:内镜下ESD术切除的完整病灶;2F:病理结果(HE染色×100)提示管状-绒毛管状腺瘤伴低级别上皮内瘤变
图3 BLI下考虑诊断为JNET2B型结肠病灶。3A:BLI白光模式下可见粗蒂,基底宽;3B:BLI-bright模式下病灶周围正常黏膜界限明显,可见微结构形状及分布不规则;3C:BLI-bright放大模式下病灶黏膜微血管形状及分布尚不规则;表面微结构不规则,部分模糊不清;3D:化学染色结合放大内镜观察微腺管的变化,微腺管不规则;3E:内镜ESD术切下完整病灶;3F:病理结果(HE染色×100)提示:病变为锯齿状腺瘤伴局灶腺体高级别上皮内瘤变(M1)
图4 BLI下考虑诊断为JNET3型结肠病灶。4A:BLI白光模式下可见粗蒂,基底宽息肉样隆起;4B:LCI模式下病灶黏膜更红,周围正常黏膜更白,病灶界限清楚;4C:BLI-bright模式下病灶周围正常黏膜界限明显,部分病灶微结构消失;4D:BLI-bright放大模式下部分病灶黏膜血管呈泛血管区;表面微结构模糊不清,呈无定型区域;4E:内镜ESD术完整切下病灶;4F、4G:病理结果(HE染色及免疫组化×100)提示:病变为(乙状结肠)中分化腺癌,肿瘤大小1 cm×0.8 cm×0.6 cm,浸润至黏膜下层(sm2),可见脉管内有癌栓,肿瘤出芽分级为G3;4H、4I:外科手术病理结果(HE染色×100)提示:送检(肠管)组织呈慢性炎伴肉芽组织形成,未见肿瘤,原肿块已经切除,肠系膜淋巴结可见癌转移,淋巴管内可见癌栓
表1 694处病灶BLI结合JNET分型内镜下诊断与病理诊断的结果(处)
表2 500处息肉样病灶BLI结合JNET分型内镜下诊断与病理诊断的结果(处)
表3 194处病灶平坦型BLI结合JNET分型内镜下诊断与病理诊断的结果(处)
表4 息肉样病灶与平坦型病灶的JNET分型与病理诊断的一致性
表5 JNET分型在息肉样病灶及平坦型病灶的准确性(%)
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