The purpose of this tool is to help illustrate potential data storage considerations for facilities considering adopting digital breast tomosynthesis. Information presented in this tool is hypothetical and for illustrative purposes only. Any analysis or information derived from this tool is for general information purposes only and is being furnished to you free of charge and without any representation or warranty of any kind whatsoever, including with respect to the calculations, inputs, outputs, and/or information provided in such analysis. While this tool allows several variables to be entered, this tool also contains certain assumptions that may not be valid for your specific facts and circumstances. Any reliance on any analysis, calculation, output or information provided by this tool shall be at your sole risk, and we will have no liability to you or any third party for any reason. It is your responsibility to independently verify any calculations, inputs, outputs, and/or information provided in this tool. This tool is not intended to interfere with a health care professional's independent clinical decision making.
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Facility Storage Characteristics
Store projections
You need to store projections for further review of the V-preview image for each Exam. Note: the V-preview image, which is not a diagnostic image, cannot be stored.
In case you store ONLY projections you will need to retrieve them on the acquistion workstation and manually relaunch a reconstruction before pushing to the review workstation. The V-Preview is only available in IDI 4.7 only
Store planes
If you store planes you also need to store slabs for future diagnostic reference. GE clinical trials have demonstrated clinical performances using both planes and slabs together. If you choose to store only one of these objects, please note that one cannot be recalculated from the other. Slabs and planes can only be recalculated from projections on the acquisition workstation.
Store slabs
If you store slabs you also need to store planes for future diagnostic reference. GE clinical trials have demonstrated clinical performances using both planes and slabs together. If you choose to store only one of these objects, please note that one cannot be recalculated from the other. Slabs and planes can only be recalculated from projections on the acquisition workstation.
Estimated Stored data retention time (years)
Indicate your hospital guidelines
Estimated PACS capacity allocated to mammography (TB)
Often each modality has a quotas avalable for storage, please check with your admin what could be the mammmography departement limit
( Please enter any positive number )
Estimated PACS compression ratio (%)
PACS Compression Ratio should be obtained by administrator of PACS vendor; not that even if the compression option is selected on the acqusition system the PACS may uncompress and recompress with their own ratio. In case a PACS is configured to store objects as they are received, please input in this field the acquistion system compression ratio (typical for lossless compression is 50%; typical for lossy compression 17%)
Network bandwidth (Mb/s)
This value depends on the nominal network bandwidth and the traffic already existing in the service.
( Please enter a value between 1 and 1000 )
Population Breast Characteristics
Average compressed breast thickness (mm)
Customer
( Please enter a value between 0 and 130 )
Average 24x31 image size usage (%)
Customer
Average 19x23 image size usage (%)
Customer / sum of 24x31 usage and 19x23 usage shall be 100%
Facility Characteristics
Days of operation per month (Estimated Average)
InfoTip Content Awaited.
Number of exams per day (Estimated Average)
InfoTip Content Awaited.
Number of tomo acquisition per exam (Estimated Average)
InfoTip Content Awaited.
Estimated data size output
0.5mm sampling
1mm sampling
Needed storage capacity (TB)
Storage GAP (TB)
Number of years to fill the current PACS
Exam transfer time (Uncompressed)
Exam transfer time (Lossless compression)
Exam transfer time (Lossy compression)
Detector coverage by breast Ratio (%)
Projections size (MB)
Planes size (MB)
Slabs size (MB)
Size of data per exam on acquisition system (Before compression in MB)
