• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제10권11호
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• pp.465-472
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• 2021

본 논문에서는 약물의 시판 후 이상 반응을 모니터링하기 위해 약물 리뷰 데이터로부터 약물 이상 반응을 탐지할 수 있는 방법을 제시하였다. 부정적인 약물 리뷰는 주로 약물 이상 반응을 언급하고 있다는 점을 고려하여 약물 리뷰들을 감성 분석하여 부정 리뷰를 추출하고, 부정 리뷰에 사전 기반 추출과 개체명 인식 기법을 적용하여 약물 이상 반응을 탐지하였다. 제안하는 BERT+ 알고리즘으로 부정 리뷰를 판별한 다음, MedDRA 표준 의학 용어 사전을 활용해 이상 반응 단어를 찾고, 개체명 인식 기법을 사용하여 구로 표현된 이상 반응 표현을 탐지하였다. 실험을 위해 비스테로이드성 소염진통제 세 종류의 약물 리뷰를 약물 리뷰 사이트로부터 수집하여 테스트하였으며, 실험 결과는 약물 리뷰를 통한 약물 이상 반응 탐지가 현재의 약물 감시 체계의 한계점을 보완할 수 있음을 보여준다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권4호
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• pp.1361-1364
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• 2012

Background: Results of screening colonoscopy from Western countries reported adenoma detection rates (ADRs) of 30-40% while those from Asia had ADR as low as 10%. There have been limited data regarding screening colonoscopy in Thailand. The objectives of this study were therefore to determine polyp and adenoma detection rates in Thai people, to evaluate the incidence of colorectal cancer detected during screening colonoscopy and to determine the endoscopic findings of the polyps which might have some impact on endoscopists to perform polypectomy. Materials & Methods: This study was a retrospective electronic chart review of asymptomatic Thai adults who underwent screening colonoscopy in our endoscopic center from June 2007 to October 2010.Results: A total of 1,594 cases were reviewed. The patients had an average age of $58.3{\pm}10.5$ years (range 27-82) and 55.5% were female. Most of the cases (83.8%) were handled by staff who were endoscopists. A total of 488 patients (30.6%) were reported to have colonic polyps. Left-sided colon was the most common site (45.1%), followed by right-sided colon (36.5%) and the rectum (18%). Those polyps were removed in 97.5% of cases and 88.5 % of the polyps were sent for histopathology (data lost 11.5%). Two hundred and sixty three cases had adenomatous polyps, accounting for 16.5 % ADR. Advanced adenomas were detected in 43 cases (2.6%). Hyperplastic polyps were mainly located distal to the splenic flexure of the colon whereas adenomas were found throughout the large intestine. Ten cases (0.6%) were found to have colorectal cancer. Four advanced adenomas and two malignant polyps were reported in lesions ${\leq}$ 5 mm. Conclusion: The polyp detection rate, adenoma detection rate, advanced adenoma detection rate and colorectal cancer detection rate in the screening colonoscopy of Thai adults were 30.9%, 16.5%, 2.6% and 0.6% respectively. Malignant transformation was detected regardless of the size and location of the polyps. Therefore, new technology would play an important role indistinguishing polyps.