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File-opening guide

How to open a CT scan ZIP from a patient portal on iPhone

Download the portal’s image archive to Files, then open Ossidex and choose + → Files / ZIP to import the ZIP. A portal viewing link or a PDF report is different from the downloadable DICOM images.

By the Ossidex team · How we write and check these pages · Updated

Download on the App StoreFree to download · iPhone & iPad · iOS 17+

Choose images rather than a report or shortcut

What you haveWhat it means
An actual .zip downloadMay contain a DICOM folder, DICOMDIR and a bundled viewer. Keep the archive complete.
Report PDFThe written report or rendered pages, not a substitute for the CT image series.
Portal URL or saved HTMLAccess to a website, not an image file. Authentication and download steps must be completed in the portal.

How to open the images

  1. Open the clinic’s link in Safari. Sign in through the portal if required. Find its image-download option; labels vary, so use the portal’s instructions rather than assuming every Download button returns DICOM.
  2. Save and finish the download. Save the archive to Files. Keep the original filename and wait until the transfer completes. An interrupted ZIP may expose only some images.
  3. Import the archive. In Ossidex tap + then Files / ZIP. Choose the saved ZIP; you do not need to manually unpack a supported archive first.
  4. Check the date and series. Confirm that the requested CT examination arrived. Keep the written report separately and ask the clinic if the series list appears incomplete.

What to check if it still does not open

Ossidex does not replace the portal’s sign-in flow. If pasting a link opens a login or online-viewer page, download through Safari and then import the local file. If the portal offers no image download, ask the clinic for the complete DICOM examination.

An encrypted ZIP requires the sender’s archive password, which may differ from the portal password. Available storage and device memory also affect large imports; a smaller report download is not a replacement for the images.

Viewer options and format limits

On a Mac, open the browser viewer and choose Open folder for the complete DICOM folder or Open files for a ZIP. Browser format and memory limits differ from the iPhone/iPad app; a successful import does not establish that the examination is complete.

See the matching format or export guide and tested samples and compatibility limits. Ossidex is a viewer and planning aid, not a diagnostic device.

Frequently asked questions

Do I have to unzip the CT scan first?

No for supported ZIP archives in the iPhone/iPad app. Import the archive through Files / ZIP and preserve the original until you have checked the study.

Will this work on iPad?

The same app import choices are available on iPad. Copy the ZIP to Files and import it there.

Sources

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