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Merge pull request #22 from v-kyriakopoulou/master
Updated biomedia following discussion with Jo
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## Download | ||
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In order to be able to browse/download data, | ||
you will need to register by following [this | ||
link](https://data.developingconnectome.org/app/template/Login.vm). On | ||
the dHCP data login page, select 'Register' and fill out the mandatory | ||
fields including **Lab/Department, Institute Full Name, Country and your | ||
institutional email address**. You will receive a verification email. After | ||
you verify your email address, you will be able to login to sign an agreement | ||
and access the public face of the dHCP database (db). This includes browsing | ||
(although not downloading) available Projects (data sets). | ||
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If you experience any technical issues, please [submit your query | ||
here](https://neurostars.org/t/dhcp-infant-data-downloading-issue/2500). | ||
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<div id="toc"></div> | ||
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## Data review and download | ||
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In order to unlock download options for available Projects (data sets), | ||
you will have to sign user terms. Open any Project and hit 'Sign user | ||
terms'. Once confirmed you will be able to view a list of subjects, | ||
preview the available data as acquired (without any pre-processing) and | ||
will be provided two download options. | ||
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### Academic Torrent download (recommended) | ||
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Since data sets are fairly large (expect > 700GB) this is | ||
a fail-safe way to get hold of desired releases. A [separate | ||
document](https://drive.google.com/file/d/1llcifaLWicGZ-DxVWCpyhBqJfEwToWb_/view) | ||
provides more detailed instructions. Be sure to have a Torrent client | ||
such as [BitTorrent](https://www.bittorrent.com/) installed on your | ||
computer. Clicking on the 'Download Data Set (Torrent)' button will provide | ||
you with a `.torrent` file a few kB in size. Opening this `.torrent` file in | ||
your Torrent client will give you the option to select among subsets of the | ||
selected release. Once confirmed, your torrent client will automatically | ||
start the download from multiple peers. You can pause/stop the download | ||
at any time. By downloading parts of the bundle you automatically become | ||
a peer for the selected `.torrent` file, which increases bandwidth for | ||
other peers. You are encouraged to at least upload the same amount of data | ||
that you downloaded (a download/upload ratio of 1.0 in the Torrent client), | ||
however this is not a must. Caveat: Your system administrator / institution | ||
might block (or be unhappy with) peer-to-peer traffic for various reasons. | ||
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Once you start downloading the dataset, you will notice that your torrent | ||
client mentions a sharing / seeding ratio. It means that as soon as you | ||
start downloading the dataset, you become part of our community of sharers | ||
and contribute to making the dataset available to other researchers all | ||
around the world! | ||
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There is no reason to be scared! It's perfectly legal as long as you are | ||
allowed to have a copy of the dataset (that is the information you need to | ||
forward to your lab's IT team if they are blocking your ports). You are | ||
actually providing a tremendous contribution to dHCP by spreading the data, | ||
so thank you again for that. With your help, we can make sure this data | ||
remains available and can be downloaded relatively fast in the future. | ||
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Over time, the dataset will grow and your contribution will be more and | ||
more important so that each and everyone of you can still obtain the data | ||
in the smoothest possible way. | ||
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#### NOTE: | ||
- (26/07/2021) Due to an oversight, the original preprocessed-fMRI torrent (`dhcp_3rd_fmri_pipeline.torrent`) was missing some files. These files have been been included in an additional patch torrent (`dhcp_3rd_fmri_pipeline_patch1.torrent`). To obtain the complete dataset of preprocessed fMRI, you will need to download both the original fMRI torrent AND the fMRI patch torrent. | ||
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## Downloading non-imaging data | ||
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### List of Subjects, Gender, GA | ||
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The data release contains some non-imaging data, which can be directly | ||
downloaded as an Excel spreadsheet by selecting 'Spreadsheet' from the | ||
'Options' drop down menu from the table view page. The data release | ||
supplementary documentation can be directly downloaded by clicking on the | ||
link 'documentation: Data Release' on the main table view page. | ||
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### Metadata | ||
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Metadata file includes the following information. | ||
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Column | Notes | ||
:---------- | :---- | ||
`birth_age` | Gestational age at birth in weeks | ||
`birth_weight` | Birthweight (kg) | ||
`singleton` | Singleton / multiple status of the pregnancy | ||
`scan_age` | Gestational age at scan in weeks | ||
`scan_head_circumference` | Head circumference (cm) | ||
`scan_number` | 1 for the first scan, 2 for the second | ||
`radiology_score` | The MRI scans were reviewed by a specialist perinatal neuroradiologist who scored each subject using the following scale:<br /> 1=Normal appearance for age<br/> 2=Incidental findings with unlikely significance for clinical outcome or analysis (e.g. subdural haemorrhage. Isolated subependymal cysts. Mild inferior vermis rotation)<br/> 3=Incidental findings with unlikely clinical significance but possible analysis significance (e.g. several punctate lesions or other focal white matter / cortical lesions not thought to be of clinical significance)<br/> 4=Incidental findings with possible clinical significance. Unlikely analysis significance (e.g. Isolated non brain anomaly for example in pituitary / on tongue) 5=Incidental finding with possible / likely significance for both clinical and imaging analysis (e.g. Major lesions within white matter cortex, cerebellum and or basal ganglia; small head / brain < 1 st centile) <br/> Q=Poor quality anatomical data | ||
`sedation` | 1 if the subject was sedated during the scan, 0 otherwise | ||
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The file can be downloaded from | ||
[combined.tsv](supplementary_files/combined.tsv). | ||
link to go straight to supplementary files |
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The dhcp project is now complete. | ||
For access to resources please see the [NDA website](https://nda.nih.gov/experiment.html?id=2018&collectionId=3955). The data is now being hosted by the NDA, please contact them for any access related issues at NDAHelp@mail.nih.gov and quote collection 3955. The [Neurostars](https://neurostars.org/tag/developing-hcp) is no longer being monitored systematically. |
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