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UCL / STIR-GATE-Connection

Example files on how to run STIR on GATE data
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Example mMR geometry may be out of date? #88

Open robbietuk opened 2 years ago

robbietuk commented 2 years ago

https://github.com/UCL/STIR-GATE-Connection/blob/master/ExampleScanners/mMR/geometry_mMR.mac

This example mMR configuration does not use the virtual crystals found in the mMR. However, STIR can now support these virtual crystals (https://github.com/UCL/STIR/pull/833 etc.).

See: #87

KrisThielemans commented 1 month ago

STIR can now support these virtual crystals

That is correct. https://github.com/UCL/STIR/blob/6417022e54a4814f25776bc8ca1df3acd4e865f6/src/buildblock/Scanner.cxx#L1620-L1630 hardwires 1 virtual crystal for the mMR (and som eother scanners). This can currently not be set via the interfile header. We do have keywords in the .hroot file

Number of virtual axial crystals per block := ...
Number of virtual transaxial crystals per block:= ...

However, currently they only check consistency

So, to use the (correct) 8x8 block, the following would have to be updated (e.g. by setting originating system to Siemens mMR) https://github.com/UCL/STIR-GATE-Connection/blob/c5ac1e09ceda3efd6a5ec67c3b395f94b0d1c138/ExampleScanners/mMR/root_header_template.hroot#L7 https://github.com/UCL/STIR-GATE-Connection/blob/c5ac1e09ceda3efd6a5ec67c3b395f94b0d1c138/ExampleScanners/mMR/root_header_template.hroot#L31 https://github.com/UCL/STIR-GATE-Connection/blob/c5ac1e09ceda3efd6a5ec67c3b395f94b0d1c138/ExampleScanners/mMR/STIR_scanner.hs#L4 https://github.com/UCL/STIR-GATE-Connection/blob/c5ac1e09ceda3efd6a5ec67c3b395f94b0d1c138/ExampleScanners/mMR/STIR_scanner.hs#L40 https://github.com/UCL/STIR-GATE-Connection/blob/c5ac1e09ceda3efd6a5ec67c3b395f94b0d1c138/ExampleScanners/mMR/STIR_scanner.hs#L43