Healthcare: Clinical Text Analysis

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4. Clinical NLP for Healthcare
The medical industry is entirely knowledge oriented and consists of massive volumes of information attained from discharge and all kinds of medical reports, doctor’s notes and prescription records and what not. This information is usually stored in unstructured layouts in electronic healthcare systems due to which understanding the information and making better decisions is a great challenge for these systems. However, NLP techniques have the capability to formalize the narrative information in healthcare. These techniques are being used to capture unstructured healthcare information, analyze its structure, determine its meaning and translate it for the electronic healthcare systems. In essence, NLP techniques …show more content…
The system was designed to extract structure and automatically encode clinical information in textual reports of patients such as radiology reports, discharge summaries, visit notes, electrocardiography, echocardiography, and pathology notes [19]. MedLEE has been used to detect patients with suspected tuberculosis, breast cancer, stroke, and community acquired Pneumonia from texts [20]. MedLEE has been shown to be accurate with a recall rate of 83% and 89% precision [21].
4.4.2 Clinical Text Analysis and Knowledge Extraction System …show more content…
CTakes was developed in 2006 at the Mayo Clinic. CTakes was developed with the Unstructured Information Management Architecture (UIMA) framework and openNLP toolkit. CTakes extracts information from electronic medical record and clinical free texts such as visit notes, nursing notes as well as clinical research by identifying clinical named entities such as drugs, diseases, symptoms, anatomical sites and procedures. Its components include sentence boundary detector, rule based tokenizer, part of speech tagger, phrasal chunker, dictionary look up annotator, negation detector, drug mention annotator amongst others [22].
4.4.3 Medical Literature Analysis and Retrieval System Online (Medline)
Medline was developed by the National Library of Medicine, United States of America. It is a bibliographic database which contains information in biomedicine, biology, biochemistry, molecular evolution and life sciences. Medline contains journal citations and abstracts in the medical field which are collected from a set of different medical journals by the US National Institutes of Health [23]. Hence, Medline is most widely used by the clinicians and research scholars in the field of medicine. Medline can be accessed via PubMed and Entrez search engines.
4.4.4
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