数字病理远程会诊相关文献

  • 1、细胞DNA倍体分析与常规细胞学诊断对宫颈上皮内瘤变诊断评估的比较(中华临床医师杂志(电子版) 2008年11月)

    作者:童华, 李凤山

    关键字:液基细胞学,宫颈上皮内瘤变

    摘要:

    目的评价采用DNA定量分析方法进行宫颈癌普查的工作效率和准确性。方法对参与宫颈癌普查的3070名妇女用宫颈刷取材,进行液基薄层制片,分别进行巴氏染色和Feulgen染色,由细胞学医师对巴氏染色片做常规细胞学诊断,应用全自动DNA倍体分析对Feulgen染色片进行自动扫描诊断。结果对常规细胞检查结果在不明意义的非典型鳞状上皮(ASCUS)及以上病例和全自动DNA倍体分析系统检查可见异倍体细胞或异倍体细胞峰的病例,建议进一步做阴道镜检查以及宫颈活检。146名妇女做了病理活检。以病理诊断结果为标准,计算常规细胞学诊断和细胞DNA定量分析方法在筛查CINⅡ及以上宫颈病变的敏感性、特异性、阳性预测值、阴性预测值。以3个DNA异倍体作为评估CINⅡ及以上病理改变,其敏感性、特异性、阳性预测值、阴性预测值分别是80.95%、57.60%、24.29%、57.60%,除阴性预测值外均比常规细胞检查为低级别鳞状上皮内病变及以上级别评估CINⅡ及以上病理改变标准(分别是76.19%、40.00%、17.58%、90.90%)要高,其他级别中3个DNA异倍体与AS-CUS、≥10个DNA异倍体与高级别鳞状上皮内病变相应指标比较均高。同时,细胞DNA定量分析图客观准确,不仅能识别宫颈细胞涂片中的大量DNA异倍体,还能识别少量DNA异倍体细胞,对临床工作的指导有较重要的意义。结论细胞DNA定量分析方法能较好地提高宫颈癌普查的阳性检出率。

  • 2、Assessment of diagnostic accuracy and feasibility of dynamic telepathology in China(Human Pathology, 2008,39, 236–242)

    作者:Xinxia Li, Encong Gong, Jiang Gu

    关键字:应用研究, 区域调查

    摘要:

    To assess the feasibility, including diagnostic accuracy and time cost, of a real-time telepathology system with pathologic slides, 600 cases covering a wide spectrum of lesions from 16 organ systems were tested. The "correct" diagnosis (gold standard) was established as a consensus by 2 experienced pathologists. The cases were first examined by 4 pathologists at different levels of experience with dynamic telepathology. Cases were then reviewed by the same pathologists using light microscopy in a blinded fashion 3 weeks to 2 months later. A diagnosis, together with reading times for telepathology and light microscopy, was recorded for each case. Diagnostic accuracy by telepathology was 94.8% (569/600), 93.3% (560/600), 91.6% (550/600), and 97% (388/400) for pathologists A, B, C, and D, respectively. Telepathologic diagnosis was concordant with the gold standard and with direct microscopy, with a mean of 94.2% and 99.26%, respectively. Most cases (510 or 85%) were diagnosed in 15 to 40 minutes by telepathology, with a mean of 17.0 minutes. The time needed to review a slide by telepathology was 3 to 4 times longer than that of standard light microscopy. All 4 pathologists were able to render a diagnosis in all cases. Our results showed that robotic telepathology is sufficiently accurate for primary diagnosis in surgical pathology, but modifications in laboratory protocols, telepathology hardware, and internet speed are needed to reduce the time necessary for diagnosis by telepathology before this method may be deemed suitable for use in a busy practice.