Objective To study the effect of laser induced fluorescence(LIF) on the early diagnosis of colorectal cancer and to analyze the mechanism of the production of LIF spectrum.
目的研究激光诱发荧光（LIF）技术在大肠癌早期诊断中的作用，并对LIF光谱产生的机制进行初步的探讨。
Background and Objectives: Detection of colorectal exfoliated epithelial cells and their nuclear DNA content may provide another non-invasive way of screening and early diagnosis of colorectal cancer.
背景及目的：粪便中脱落细胞及其核d NA含量的检测有可能成为大肠癌筛查及早期诊断的无创途径。
Objective Analysis of synchronous metastatic liver cancer of colorectal cancer for risk factors to improve the level of early diagnosis.
目的探讨大肠癌同期肝转移的危险因素，提高早期诊断水平。
Conclusions: early diagnosis and early treatment is the key measure to improve the 5-year survival rate of young patients with colorectal cancer.
结论：早期诊断、早期治疗是提高青年人大肠癌5年生存率的关键。
Objective to discuss the colorectal cancer of patient at different age groups in clinical and endoscopy characteristic, in order to raise colorectal cancer early diagnosis rate.
目的探讨不同年龄结直肠癌患者临床及内镜特点，以提高结直肠癌早期诊断率。
Conclusions CD44 and CD54 can be used as biological markers for early clinical diagnosis of liver metastasis and prognostic factor in colorectal cancer.
结论CD 44和CD54可以作为临床早期诊断结直肠癌肝转移的生物学指标，同时也可以作为监测结直肠癌和结直肠癌肝转移预后的客观指标。
Results: the prime symptoms of colorectal cancer are abdominal pain, hematochezia and change of stool customs. But the early diagnosis for colorectal cancer is difficult.
结果大肠癌以腹痛、便血、大便习惯改变为主要症状，但早期诊断情况不乐观。
Results: the prime symptoms of colorectal cancer are abdominal pain, hematochezia and change of stool customs. But the early diagnosis for colorectal cancer is difficult.
结果大肠癌以腹痛、便血、大便习惯改变为主要症状，但早期诊断情况不乐观。
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