Extract Clinical Problem Entities from Voice of the Patient Documents (LangTest)

Description

This model extracts clinical problems from the documents transferred from the patient’s own sentences using a granular taxonomy. It is the version of ner_vop_problem model augmented with langtest library.

test_type before fail_count after fail_count before pass_count after pass_count minimum pass_rate before pass_rate after pass_rate
add_abbreviation 851 817 2245 2279 70% 73% 74%
add_ocr_typo 1602 792 1878 2688 70% 54% 77%
add_punctuation 0 0 51 51 70% 100% 100%
add_typo 478 410 2869 2943 70% 86% 88%
lowercase 138 137 3111 3112 70% 96% 96%
titlecase 1469 741 2049 2777 70% 58% 79%
uppercase 3126 825 393 2694 70% 11% 77%
weighted average 7664 3722 12596 16544 70% 62.17% 81.63%

Predicted Entities

PsychologicalCondition, Disease, Symptom, HealthStatus, Modifier, InjuryOrPoisoning

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How to use

document_assembler = DocumentAssembler()\
    .setInputCol("text")\
    .setOutputCol("document")

sentence_detector = SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare","en","clinical/models")\
    .setInputCols(["document"])\
    .setOutputCol("sentence")

tokenizer = Tokenizer() \
    .setInputCols(["sentence"]) \
    .setOutputCol("token")

word_embeddings = WordEmbeddingsModel().pretrained("embeddings_clinical", "en", "clinical/models")\
    .setInputCols(["sentence", "token"]) \
    .setOutputCol("embeddings")                

ner = MedicalNerModel.pretrained("ner_vop_problem_langtest", "en", "clinical/models") \
    .setInputCols(["sentence", "token", "embeddings"]) \
    .setOutputCol("ner")

ner_converter = NerConverterInternal() \
    .setInputCols(["sentence", "token", "ner"]) \
    .setOutputCol("ner_chunk")

pipeline = Pipeline(stages=[document_assembler,
                            sentence_detector,
                            tokenizer,
                            word_embeddings,
                            ner,
                            ner_converter])

data = spark.createDataFrame([["I've been experiencing joint pain and fatigue lately, so I went to the rheumatology department. After some tests, they diagnosed me with rheumatoid arthritis and started me on a treatment plan to manage the symptoms."]]).toDF("text")

result = pipeline.fit(data).transform(data)
val document_assembler = new DocumentAssembler()
    .setInputCol("text")
    .setOutputCol("document")
    
val sentence_detector = SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare","en","clinical/models")
    .setInputCols("document")
    .setOutputCol("sentence")
    
val tokenizer = new Tokenizer()
    .setInputCols("sentence")
    .setOutputCol("token")
    
val word_embeddings = WordEmbeddingsModel().pretrained("embeddings_clinical", "en", "clinical/models")
    .setInputCols(Array("sentence", "token"))
    .setOutputCol("embeddings")                
    
val ner = MedicalNerModel.pretrained("ner_vop_problem_langtest", "en", "clinical/models")
    .setInputCols(Array("sentence", "token", "embeddings"))
    .setOutputCol("ner")
    
val ner_converter = new NerConverterInternal()
    .setInputCols(Array("sentence", "token", "ner"))
    .setOutputCol("ner_chunk")

        
val pipeline = new Pipeline().setStages(Array(document_assembler,
                            sentence_detector,
                            tokenizer,
                            word_embeddings,
                            ner,
                            ner_converter))    

val data = Seq("I've been experiencing joint pain and fatigue lately, so I went to the rheumatology department. After some tests, they diagnosed me with rheumatoid arthritis and started me on a treatment plan to manage the symptoms.").toDS.toDF("text")

val result = pipeline.fit(data).transform(data)

Results

+--------------------+---------+
|chunk               |ner_label|
+--------------------+---------+
|pain                |Symptom  |
|fatigue             |Symptom  |
|rheumatoid arthritis|Disease  |
+--------------------+---------+

Model Information

Model Name: ner_vop_problem_langtest
Compatibility: Healthcare NLP 5.1.0+
License: Licensed
Edition: Official
Input Labels: [sentence, token, embeddings]
Output Labels: [ner]
Language: en
Size: 14.6 MB

References

In-house annotated health-related text in colloquial language

Sample text from the training dataset

Hello,I’m 20 year old girl. I’m diagnosed with hyperthyroid 1 month ago. I was feeling weak, light headed,poor digestion, panic attacks, depression, left chest pain, increased heart rate, rapidly weight loss, from 4 months. Because of this, I stayed in the hospital and just discharged from hospital. I had many other blood tests, brain mri, ultrasound scan, endoscopy because of some dumb doctors bcs they were not able to diagnose actual problem. Finally I got an appointment with a homeopathy doctor finally he find that i was suffering from hyperthyroid and my TSH was 0.15 T3 and T4 is normal . Also i have b12 deficiency and vitamin D deficiency so I’m taking weekly supplement of vitamin D and 1000 mcg b12 daily. I’m taking homeopathy medicine for 40 days and took 2nd test after 30 days. My TSH is 0.5 now. I feel a little bit relief from weakness and depression but I’m facing with 2 new problem from last week that is breathtaking problem and very rapid heartrate. I just want to know if i should start allopathy medicine or homeopathy is okay? Bcs i heard that thyroid take time to start recover. So please let me know if both of medicines take same time. Because some of my friends advising me to start allopathy and never take a chance as i can develop some serious problems.Sorry for my poor english😐Thank you.

Benchmarking

label                   precision  recall  f1-score  support 
Disease                 0.86       0.85    0.85      1543    
HealthStatus            0.81       0.87    0.84      141     
InjuryOrPoisoning       0.74       0.73    0.73      134     
Modifier                0.81       0.76    0.78      1071    
PsychologicalCondition  0.93       0.93    0.93      398     
Symptom                 0.87       0.86    0.87      3640    
micro-avg               0.86       0.84    0.85      6927    
macro-avg               0.84       0.83    0.83      6927    
weighted-avg            0.86       0.84    0.85      6927