<html><head><style>p{margin-top:0px;margin-bottom:0px;}</style></head><body><div style="font-size:10pt; font-family:Gulim, sans-serif;"><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Dear Kurt V,</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Attached is the GATEv6.2 macro files for small animal SPECT.(slide#27-29)</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">In my GATE simulation, there is no attenuation material.Thus, the phantom material is Air.</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">====================================================================</p><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><b>Tungsten Parallel Square Hole Collimator</b></div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">L=30 mm</div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">H=1.0 mm, 0.8 mm, 0.6 mm, 0.4 mm</div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">S=0.12 mm, 0.1 mm</div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><br></div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><b>Ultra-Micro Hot Phantom (Source)</b></div><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">99mTc activity = 300 [kBq/mL]<br></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; background-color: rgb(255, 255, 255);">OD=28 mm<br></div><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="color: rgb(80, 0, 80); font-family: Arial, Helvetica, sans-serif; font-size: small; background-color: rgb(255, 255, 255);"></span></p><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; background-color: rgb(255, 255, 255);">Height = 10 mm</div><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 13.3333px;">====================================================================</p><div style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><br></div><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">You can run the below main macro file for small animal SPECT simulation.</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Main_SPECT_Small_Animal_H9500PMT_GAGG_Continuous_YZ_plane_Tungsten_L30mm_H1p0mm_S0p10mm_Micro_Deluxe_Hot_300kBq_mL_Acq12800sec_Proj128views_360deg_2016_10_18_KangHG.mac </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">For the STIR image reconstruction with STIR, you can use my parameter file attached in this email.</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><b>-OSMAPOSL_osem_SPECT_UltraMicro_Hot.par (Parameter file)</b></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><b>-SPECT_Interfile_header_UltraMicro_Hot.hs (Interfile)</b></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">You can find the basic description about the parameter files of STIR on the attached PDF file.(slide#11-18)</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Hopefully, my GATE macro files and parameter file of STIR would be useful for your work.</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Best regards,</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Han Gyu Kang, Ph.D.</p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;">Imaging Physics Group, NIRS-QST</p><p style="font-size:10pt;font-family:sans-serif;padding:0 0 0 10pt"><span>-----Original Message-----</span><br><b>From:</b> "Kurt V"<kurtv1@hotmail.com> <br><b>To:</b> "gate-users@lists.opengatecollaboration.org"<gate-users@lists.opengatecollaboration.org>; <br><b>Cc:</b> <br><b>Sent:</b> 2019-08-11 (일) 03:43:49 (GMT+09:00)<br><b>Subject:</b> [Gate-users] Any Examples of GATE reconstruction of SPECT system projection files (.hdr and .sin) using STIR<br> </p>
<xmeta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<!-- -->
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span>Dear GATE Users,</span></div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span><br>
</span>
<div>I have been working to reconstruct a SPECT based detection system in STIR by inputting the projection .sin and .hdr output files directly into stir and reconstructing the image.<br>
</div>
<div>
</div>
<div>There have been some very good presentations on how to perform this task, namely, the 2018 IEEE NSS/MIC talk by Han Gyu Kang 'Image reconstruction of GATE SPECT simulation using STIR'.
<br>
</div>
<div>
</div>
<div>Following his methods, i am finding that my reconstructed images are always of low quality and are of point source geometry. I cannot reconstruct any decent images of an actual source geometry (volume source cylinder).<br>
</div>
<div>
</div>
<div>I was wondering, if anyone who has experience with this task would be willing to provide example files of: the GATE macro file, STIR spect interfile and the .hv and .v output files from the reconstruction.<br>
</div>
<div>
</div>
<div>I have tried many different designs/reconstructions and have not had much luck.
<br>
</div>
<div>
</div>
<div>If anyone has any experience with reconstruction of GATE output in STIR, i was wondering if they could please provide suggestions.<br>
</div>
<div>
</div>
<div>
</div>
<div>
</div>
<div>As always thanks all and i appreciate all help,<br>
</div>
<span>Kurt Van Delinder, M.Sc, M.Sc, RT(T)</span><br>
</div>
</xmeta></div></body></html><table style='display:none'><tr><td><img src="https://mail.naver.com/readReceipt/notify/?img=fd%2BC1zkrWrmYaXIn%2B6%2B5aAElKq3CMogZF4p0po2dK4poMo2wKrkCMob%2FpxCCtzFXp6UmKxK5W4d5W4pZMLlGWq%2FsprJdpL99brkZbdIn1BFdbZlTbzk5prJdp6FTWzwCM4eZMB3GWr%2F5WXiN.gif" border="0"/></td></tr></table>