Changelog

May 22, 2018

Model

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May 2, 2018

Model

Even a tiny update like this makes the experience better for all of you.

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April 17, 2018

Model

First of all, we've refined underlying connections in the database. Other updates contain:

  • New items called “metasymptoms”. When patients describe their symptoms they frequently use phrases like “body aches” or “stomach ache on the right side”. That’s why we’re introducing metasymptoms – observations that are not precise enough to be treated as proper symptoms. Metasymptoms, like symptoms, are available via /search and /parse, so you don't need to change your code.
  • Another rearrangement of renal conditions.
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April 5, 2018

Model

Learn about changes in Abdominal pain and more.

  • We've improved the structure of symptoms related to a duration of abdominal pain. Now, the model is better at dealing with complexity of total duration and periods of pain. Besides, questions are simpler and more user-friendly.
  • Abdominal pain has new child symptoms. They are related to the character of abdominal pain and its radiation to back.
  • We’ve created Postpartum period as key risk factor for Postpartum depression.
  • We've added Skin mass greater than 1 cm in diameter (parent symptom for three detailed types of lumps). We’ve removed other four skin-related symptoms.
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January 16, 2018

Model

Hello in 2018! Let’s kick off the new year sharing some news.

  • We’ve rearranged renal conditions and created new item called Acute kidney injury.
  • We’ve added new symptoms: Edema, hip joint and Joint pain, during hip movement. As a result, we have improved hip conditions.
  • We continue to simplify and rephrase difficult questions.
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API

  • Now, question selection algorithm prioritizes risk factors (e.g. being post-menopausal). As a result, some conditions are excluded.
  • We’ve improved stop recommendation algorithm.
  • We’ve fixed bugs that prevented mentions of some common symptoms from being properly captured by /parse.
  • Lastly, we're working on a German language support for /parse. Beta version will be available soon!

December 4, 2017

Model

The biggest change in this update is Physical injury – the new master risk factor. What do you need to know about it?

  • Physical injury does not influence conditions probability, but it can make the interview more accurate.
  • We recommend using Physical injury as a potential trigger for subsequent questions about injury-related risk factors.
  • If Physical injury is set to present, it prompts a multiple-choice question about underlying risk factors.
  • If Physical injury is set to absent, all injury-related risk factors are automatically set to absent too.
  • All risk factors related to physical injuries are available on the Diagnosis page.

Other updates:

  • We’ve added Tinea capitis condition together with its most typical symptom, Broken hair.
  • We’ve replaced Red rings with light centers on skin with more specific Erythema migrans. As a result, we’ve created new parent symptom called Annular skin lesions.
  • We continue to simplify symptoms related to dermatological changes.
  • Tons of questions are now more user-friendly.

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API

We're happy to share two new features with you.

  • Have you ever wondered when is the good moment to stop asking further diagnostic questions? We've introduced our stop condition recommendation that you can use to end interviews when enough information is collected.
  • Our question selection algorithm can now better focus on the initial symptoms reported by a user. All chief complaints and reported observations should now be marked as initial evidence. This is an important change that you should implement for the optimal performance.

September 4, 2017

Model

We've refined medical concepts related to common injuries.

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API

We continue to improve already existing features:

  • Question selection algorithm – Enhanced for risk factors related to injuries.
  • /search endpoint – We've rewritten phrase matching algorithm. The endpoint now returns more accurate results, especially in Chinese (due to better tokenization).
  • /suggest endpoint – We analyzed our statistics once again and, as a result, recommendations have become better.

August 28, 2017

Model

We have introduced a few, but significant changes, including:

  • We've added three new conditions, including Ruptured eardrum (together with Bleeding from ear as a typical symptom).
  • We've removed Acute viral tonsillopharyngitis and Rotavirus infection. From now on, the API will return Acute pharyngitis and Gastroenteritis respectively.
  • Now, you can handle the diffused abdominal pain with a new Abdominal pain, diffuse symptom.
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August 9, 2017

Model

We've proofread, corrected and simplified the concepts' names and questions. Furthermore, new symptoms and conditions have been added. Finally, Dermatological changes, penis and Dermatological changes, vulva were merged into one: Dermatological changes, located in the genital area.

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Jul 14, 2017

Model

We're exited to share with you hundreds of updates. Now, most of symptoms and many conditions are available in plain language (common_name field). In addition:

  • We've added important valve disease.
  • The endocrinological conditions were removed – because patients can't tell a difference between them.
  • We've updated some dermatological symptoms. Now, patients should understand and distinguish them easily.
  • We've removed abbreviations from the lab tests names.
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API

We are introducing common names, one new endpoint and more:

  • The API now returns both name (professional medical term) and new common_name (plain language) – for most of the symptoms and many conditions.
  • The new /suggest endpoint returns related symptoms. It allows you to simplify the initial data entry by suggesting other symptoms that patient may have.
  • The /search endpoint was improved to work better with languages using diacritical marks (e.g. Spanish).
  • NLP understands common risk factors.

May 18, 2017

Model

We focused on simplifying medical concepts and making question easier to understand.

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May 10, 2017

Model

We've continued to refine the structure of our conditions, symptoms and risk factors. We've minimized a rate of over-confidence of rare conditions.

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API

We profiled crucial parts of our code and achieved meaningful performance improvements. A significant focus has been put into improving question selection strategy for conditions strongly associated with a particular risk factor (e.g. skeletal trauma).

March 23, 2017

Model

We've added new conditions and removed a few overlapping and non-relevant diseases. The accuracy of the model has been re-tested and improved for the common primary care and emergency situations. We've continued refinements of the structure of symptoms and risk factors.

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API

We've introduced important enhancements to our underlying reasoning engine:

  • The algorithm may now ask about risk factors such as chronic conditions (e.g. diabetes), events (e.g. injuries) and activities (e.g. mushroom consumption).
  • Improved sequencing of questions to better differentiate between conditions.
  • Improved triage recommendations as they were initially too restrictive.

February 24, 2017

Model

We added question groups for pain intensity of head and abdomen. We also improved filtering of pre-menopausal symptoms and conditions. A few new conditions have been added and some questions rephrased.

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February 15, 2017

Model

We're continously extending our model. The structure of conditions was cleaned up (e.g meningitis was removed because its subtypes – like viral meningitis – already exist). Besides, we added some conditions and improved the translations.

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API

We're exited to introducte the new endpoint. It's called /triage and it allows you to assess the severity level of reported symptoms. We published a brand new section in the documentation describing all details.

January 17, 2017

We're excited to begin this year with a major update of the Infermedica API.

Model

Major update of the model. Introduced new conditions, symptoms and risk factors with a focus on acute medical problems. The structure of symptoms and relations has also been refined. Symptom groups has been cleaned up and reorganized.

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API

Improvements of the reasoning algorithm and request processing.

  • More flexible question selection which is now less depended on pre-fixed logic.
  • Better filtering of likely conditions.
  • Solved a bug causing null questions to be returned on rare occassions.
  • Better error handling.
  • Introduced various techniques to prevent data-scraping (malicious actions against the API are obviously prohibited).
  • More scalable and reliable server infrastructre in two fail-over locations.

November 21, 2016

We’re constantly improving. From now on we’re going to post all changes here. All updates are divided into two groups:

  • Model – all changes affecting the medical concepts (conditions, symptoms, risk factors and lab tests). We’ll let you know what has been added, deleted or updated.
  • API – all amendments in the Inference Engine and other algorithms.

Check out what’s new and update your application’s code, if necessary.

Model

Many new relations have been added and refined in the underlying model. Please make sure you also read through the list of removed elements.

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