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MIKAIA FAQs

Welcome to our MIKAIA FAQs. We know that navigating a flexible digital pathology & spatial biology image analysis software like MIKAIA® can raise a lot of questions, and we’re here to help. Whether you’re looking for quick tips or detailed info, you’ll find answers here. If you can’t find what you’re looking for or need a bit more help, don’t hesitate to reach out to us. We’re just a message away!

Good to know

What are typical users of MIKAIA®?

MIKAIA® has always been designed for users in life science research and development, who want to be able realize heterogenous analyses without having to develop their own custom software.
Main user groups are academia, CROs, pharma, biotech and biobanks.

Does MIKAIA® include AIs for the clinical routine?

MIKAIA® contains new AIs cleared for diagnostic use. We are happy to point you to a range of companys who focus on this:
Digital Pathology AI Companies — List of Commercial AIs (CE-IVDR, FDA, RUO)
The Digital Pathologist’s Cockpit: Image Management Systems (IMS) – Free Download of List of IMSes
MIKAIA® has always been designed for users in life science research and development, who want to be able realize heterogenous analyses without having to develop their own custom software.
Main user groups are academia, CROs, pharma, biotech and biobanks.

Is MIKAIA® a software or a service?

MIKAIA® is a software that you can download and use by yourself in your lab or company.
If you prefer image analysis as a service, we do that too.
See http://www.iis.fraunhofer.de/pharma-services

Do I purchase MIKAIA® studio from Fraunhofer?

No, you can purchase it from one of the MIKAIA distributors, who license MIKAIA from Fraunhofer. We are happy to direct you to the most appropriate partner, based on your territory.

How is MIKAIA® pronounced?

“MEE” “CAR” “YAH”.
For Germans: Miekaja

Is MIKAIA® an acronym?

Originally, MIKAIA was called MICAIA. The spelling changed beginning of 2024.
MICAIA stands for Microscopy AI Analysis.
The new spelling indicates the German origin: the German spelling is “Mikroskop”.

Are MIKAIA® and MICAIA the same?

Until beginning of 2024, MIKAIA® was spelled MICAIA. We had to change the spelling to settle a dispute with the holder of a somewhat similar trademark.

File Formats & Storage

What file formats does MIKAIA® support?

3DHistech MRXS, Leica SVS, Hamamatsu NDPI/NDPIS, Zeiss CZI, Olympus VSI, DICOM, OME-TIFF (e.g Lunaphore), Akoya QPTIFF, BigTiff, Multifile TIFF (e.g. MACSima), JPG, PNG, TIF
See WSI and Annotation File Format I/O Support in MIKAIA for more details.

Does MIKAIA® work in the cloud or in the webbrowser?

No, MIKAIA® is a native lightweight Windows software and does not even use a central database. You can easily install MIKAIA® on your computer or laptop, or use the portable version by simply unzipping it. Once installed (or unzipped), you can open slides by dragging and dropping them into the application or by importing one or multiple folders as workspaces. These can be local or networkf folders. 

Does MIKAIA® store the annotations in a central database?

No, MIKAIA® uses a decentral scheme: It stores annotations in an *.ano file next to the scan. An *.ano file is actually a zip file and it contains an XML file with the annotations.
If you want to store your analysis results separately from the scans, you can easily do that: just create a shortcut to your original image file and then load the shortcut. MIKAIA will then put the *.ano file next to the shortcut.

How can I analyze a dataset “out of place”, i.e. store the results in a different place? What if the folder with the images is readonle?

You can create a separate folder and put shortcuts to your original scans into it. Then load the folder with the shortcuts into MIKAIA. When MIKAIA® loads an image via a shortcut, it will store annotations next to the shortcut.

I worked with shortcuts and then moved my originial folders. Can I repair my zombie shortcuts?

Yes, MIKAIA® includes a tool that lets you redirect to existing shortcuts to a new folder. It is available via main menu | Annotations | Retarget shortcuts in folder. You simply select 1) the folder with the zombie shortcuts and 2) the new folder where the scans have been moved.

Can I manage multiple versions of annotations file?

Yes, when you’ve annotated or analyzed a set of image scans, the original image files will each have a sibling file with an *.ano extension. Copy all these *.ano files into a new folder. Then use the built-in MIKAIA® tool at main menu | Annotations | Add slide shortcuts next to *.ano files. You select the folder with the *.ano file copies and the original folder. MIKAIA will then automatically identify matches based on the file names and generate the shortcuts. You can then import the new folder containing the shortcuts + *.ano copies into MIKAIA®.

Annotations

Can MIKAIA® import annotations from software XYZ?

MIKAIA® supports opening annotations in GeoJson format (used e.g. by QuPath), XML format (used by Leica Aperio), or 3DHistech *.dat format. You could also use the REST API to add annotations via a plugin, e.g. writtin in Python.

Can MIKAIA® export annotations to software XYZ?

MIKAIA® can export annotations to GeoJson format (used by QuPath), XML format (used by Leica Aperio), or CSV format.
Using the Annotation Image Export App or Tile Export App, you can also export images of annotations or export tiles along with masks (e.g., for AI training outside of MIKAIA®).
When you export a slide (e.g., in a different format, a crop, or at a lower resolution), you can also select to burn in the annotations.

Analysis Capabilities

Can I analyze H&E staining?

Yes, the Tissue Detection App works out of the box.
The AI Author can be used to train a tissue classifier, e.g., for masking tumor, necrosis, mucus, or any other tissue type.
The H&E Cell AI can be used to segment and classify cells (learn more about H&E analysis using AIs).
The Spatial Clustering App, Cell-Cell-Connection App, Cellular Neighborhood App, or Proximity Analysis App can be used to analyze spatial layout of detected cells.
The Tile Export App or Annotation Image Export App can be used to export small images.

Can I analyze IHC staining?

Yes, the IHC Cell Detection App supports segmenting both positive and negative cells. It can also grade cells based on staining intensity. It can detect nuclear, cytoplasmic, or membranous markers and is very flexibly configurable to support a broad variety of different markers.
The Mask-by-Color App can be used to mask regions based on pixel colors. 

Can I analyze mIF / FL / fluorescent scans? 

Yes, analysis of IF scans is a popular and major use case in MIKAIA® — from low-plex scans with just one or two markers up to high-plex spatial proteomics scans.
The FL Cell Analysis App can be used to segment and phenotype cells based on marker expression.  
The Mask by Color App can be used to create a mask by thresholding an individual color channel or a combination of multiple color channels.
The Spatial Clustering App, Cell-Cell-Connection App, Cellular Neighborhood App, or Proximity Analysis App can be used to analyze spatial layout of detected cells.
The Tile Export App or Annotation Image Export App can be used to export small images.
Supported formats are Zeiss CZI, Olympus VSI, Hamamatsu NDPIS, QPTIFF (used by Akoya Biosciences), and OME-TIFF (used, e.g., by Lunaphore, Miltenyi MACSima, bioformats, and many other platforms; see list of file formats). You can also open flat images (e.g., JPG, PNG, or TIF) and select that each of the RGB color channels shall in fact be interpreted as a fluorescence channel.

Does the FL Cell Analysis App support segmentation of the membrane?

Yes, it can either be configured in different ways:
● The AI can segment nuclei (e.g., “DAPI”, “Hoechst”, or “DNA” channel) and then dilate them by a fixed radius.
● The AI can be fed both a nuclear and a membrane marker. It will then segment the membrane.
● The AI can be fed only a membrane or cytoplasmic marker. It will then segment the outer cell contours.

Does MIKAIA® support analyzing hematology or cytology?

It does not include apps specifically tailored to these domains. But the FL Cell Analysis App, for instance, can still be used to detect and phenotype cells in suspension.

Does MIKAIA® support 3D-analysis or reconstruction?

No, MIKAIA® supports z-levels (focus planes) and can analyze individual z-levels, but is a 2D analysis program.

Are TMAs supported?

Yes, the Tissue Detection App includes TMA-dearraying. Most apps, including the IHC Cell Detection or FL Cell Analysis Apps, will then group detected cells by core, so that per-core statistics are automatically generated.

Performance Features

Does the viewer support 16 bit color depth?

Yes.

How many FL channels does the viewer support?

We have not built in a fixed limit. Computer power and memory availability pose limits. We have had users analyze up to 50plexes, but more may be possible. We are happy to assist and provide voucher codes to users who want to experiment with even higher plexity.

Is it possible to convert a slide from format X into format Z?

MIKAIA® can export any brightfield scan that it supports to either SVS, BigTiff, ZIF, or DeepZoom. Learn more about WSI and annotation file formats here.
We are working on exporting to OME-TIFF as well.

Is it possible to compute resolution levels / pyramid levels for a large flat scan?

No, not at this point. We plan to add this feature soon.

Is MIKAIA® compatible with any Image Management System (IMS)

No, not at this point. MIKAIA® must have direct access to the image scan files.

Does MIKAIA® support batch analysis?

Yes, you can multi-select slides in the MIKAIA® workspace. As soon as you select more than one slide, the analyze-“Slide” button turns into the analyze-“Batch” button. Once you select more than one slide, the “Analyze Slide” button changes to “Analyze Batch.” You can also create a *.micbat file (refer to the user manual) that lists the apps to be used, the app configuration file, and the selected slides. To start a batch process, simply open this *.micbat text file. All results, including a combined CSV file with results from all slides, will be saved in an export folder.

Hardware Requirements

What computer hardware do I need? Do I need a GPU?

MIKAIA® runs on a Windows laptop or PC. The AI based analysis apps benefit strongly from the presence of a CUDA-enabled GPU (CUDA 8 or newer — see below: “What GPU do I need for fast AI interference?”). They do fallback to CPU when no compatible GPU is available, but the apps that use quite large AI models (H&E Cell AI, HE Crypt Segmentation) are really slow in CPU-mode.
The IHC Cell Detection App, FL Cell Segmentation App, or AI Author are fairly usable in CPU mode, but again, they are faster when a CUDA-enabled GPU is available. 

What GPU do I need for fast AI inference?

MIKAIA® only supports CUDA-enabled NVIDIA GPUs. GPUs by other vendors are not supported as AI co-processors. MIKAIA® does not require a professional series GPU, but is also compatible with consumer-level gaming GPUs (NVIDIA GeForce).

Is MIKAIA® available for Mac / Apple?

No, sorry. Only for Windows.

Is MIKAIA® available for Linux?

No, sorry. Only for Windows.

Does the license server have to be a Windows computer?

No, it can be a Linux or Mac. You just need to be able to install the WIBU CodeMeter runtime (the copy protection framework used by MIKAIA®), which is available for download at the WIBU website

AI Integration

Can I plug my own AI into MIKAIA®?

Yes, MIKAIA® has a REST API. You can easily integrate your own scripts in any scripting language. We provide Python examples that show how to integrate your own AI as well as a Python API that simplifies calling the MIKAIA® REST API. A plugin can even run in a Docker or on another computer (even Mac or Linux).

Can my AI use TensorFlow, PyTorch, or XYZ framework?

Your plugin can use any framework as using the AI model is entirely handled by the plugin and not by MIKAIA®. This gives the plugin complete freedom in terms of pre- or post-processing the AI input and output. 

Licensing & Pricing

What is difference between MIKAIA® lite and MIKAIA® studio?

MIKAIA® lite is free. Most image analysis capabilities are locked in MIKAIA® lite, though. They are only available in MIKAIA® studio. Many, but not all apps are included in MIKAIA® studio – some require purchasing an optional add-on bundle. Browse the editions here. 

Can I evaluate the features that are locked in MIKAIA® lite?

Yes, get in touch (mikaia@iis.fraunhofer.de) and we are happy to provide voucher codes that let you temporarily use the locked features.

What is the price of MIKAIA® studio?

MIKAIA has a very fair price. We are happy to put you in touch with one of our distributors, who can give information on pricing or issue a quotation.
The default is a perpetual node-locked license for a one-time up-front free that includes one year of updates & support. We also offer floating or multi-user network licenses. 

Can you provide

Compliance

Is MIKAIA® CE-IVD, CE-IVDR, or FDA cleared?

No, MIKAIA® is designed for life science researchers. Most apps are quite generically usable. The AI Author is a good example: Users can train their own AIs directly in MIKAIA®.
MIKAIA®, incl. all apps, is for research use only (RUO).

Can MIKAIA® be used in a GLP setting?

MIKAIA® contains a funtionality that helps with documentation and ensures repeatability. When batch-analysing a cohort, the results folder will contain shortcuts to the analyzed slides, the app settings file that contains all parameters that were used in the particular anylsis, a *.micbat file that lists the entire batch job (and can later be executed again), and the CSV file with all quantitative results. This additionally states the software version, computer and user name, and date.

Does MIKAIA® communicate with the cloud?

MIKAIA® works offline. The only communication is at startup, when by default, MIKAIA® checks with a Fraunhofer server if a new version is available and, if that is the case, then shows a notification dialog. This check can optionally be disabled and has no further impact of the functionality of MIKAIA®.

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Volker Bruns

Volker is a digital pathology and spatial biology enthusiast with a computer science background. Volker and his team develop commercial image analysis software for digital pathology and offer contract development, as well as image analysis as a service in the life sciences.

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email us: mikaia@iis.fraunhofer.de

Dr. Volker Bruns
Group Manager
Medical Image Analysis (MIA)
Digital Health and Analytics | Fraunhofer IIS

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