<html><head><style>p{margin-top:0px;margin-bottom:0px;}</style></head><body><div style="font-size:10pt; font-family:Gulim, sans-serif;"><p>Dear Howard,</p><p> </p><p><span style="font-size: 10pt;">There is no GATE example combining NCAT 4D phantom with a CT scanner.</span> </p><p>Therefore, y<span style="font-size: 13.3333px;">ou should implement the NCAT 4D phantom into a CT scanner by yourself.</span></p><p><span style="font-size: 13.3333px;">Once you build your own CT scanner in GATE, the NCAT 4D phantom could be implemented easily.</span></p><p> </p><p><span style="font-size: 10pt;">Let me answer your questions.</span></p><p> </p><div style="font-size: 13.3333px;">1. Is NCAT phantom included in GATE? In other words, do I need to download any data files in order to use it?</div><div style="font-size: 13.3333px;"><b>Answer</b>: You can find the NCAT phantom files in the GATE example folders.(slide#4-5)</div><div style="font-size: 13.3333px;"><br></div><div style="font-size: 13.3333px;"><div style="font-size: 13.3333px;"><div style="font-size: 13.3333px;">2. How is the respiratory motion implemented with the phantom?</div><div style="font-size: 13.3333px;"><b>Answer</b>: The respiratory motion is implemented with the phantom (0.1 s/frame)</div><div style="font-size: 13.3333px;"> <b> If you open the slide#9, then you can see the motion of the NCAT phantom</b>.</div><div style="font-size: 13.3333px;"><br></div><div style="font-size: 13.3333px;"><div style="font-size: 13.3333px;">3. I know Duke Univ/Johns Hopkins Univ jointly developed 4D XCAT phantoms for Monte Carlo simulation. Does NCAT phantom have to do with them?</div><div style="font-size: 13.3333px;"><b>Answer</b>: You can use NCAT phantom in GATE as your preference. </div><div style="font-size: 13.3333px;"> But you need a software licence to use XCAT phantoms.</div><div><br></div><div>Hopefully, my answers would be helpful for your questions.</div></div><div><p>Best regards,</p><p> </p><p>Han Gyu Kang, Ph.D.</p><p> </p><p>Imaging Physics Group, NIRS-QST, Japan.</p></div></div></div><div><br></div><p style="font-size:10pt;font-family:sans-serif;padding:0 0 0 10pt"><span>-----Original Message-----</span><br><b>From:</b> "Howard"<lomahu@gmail.com> <br><b>To:</b> "강한규"<lovehangulp@naver.com>; <br><b>Cc:</b> <gate-users@lists.opengatecollaboration.org>; <br><b>Sent:</b> 2020-02-06 (목) 23:47:15 (GMT+09:00)<br><b>Subject:</b> Re: [Gate-users] How to import NCAT phantom to Gate (NCAT phantom with ECAT PET)(X-ray CT simulation manual)<br> </p><div dir="ltr">Dear Dr. Kang,<div> </div><div>Thank you for your quick reply. The manual in your attachment is mainly for regular X-ray CT simulation without NCAT phantom implementation. What I am interested in is the application of NCAT phantom in CT simulation. Particularly I have the following questions:</div><div> </div><div>1. Is NCAT phantom included in GATE? In other words, do I need to download any data files in order to use it?</div><div>2. How is the respiratory motion implemented with the phantom?</div><div>3. I know Duke Univ/Johns Hopkins Univ jointly developed 4D XCAT phantoms for Monte Carlo simulation. Does NCAT phantom have to do with them?</div><div> </div><div>I would greatly appreciate it if you can help with these questions or point me to anybody who can help. </div><div> </div><div>Best regards,</div><div> </div><div>Howard</div></div><br><div><div dir="ltr">On Thu, Feb 6, 2020 at 12:30 AM 강한규 <<a href="mailto:lovehangulp@naver.com" rel="noreferrer noopener" target="_blank">lovehangulp@naver.com</a>> wrote: </div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-size:10pt;font-family:Gulim,sans-serif"><p>Dear Howard,</p><p> </p><p><span style="font-size:10pt">Attached is the manual of <b>GATEv6.2 X-ray CT simulation</b> with a non-voxelized phantom.</span> </p><p>I'm sorry that the manual is written in Korean. </p><p>If you need an English version, please let me know.</p><p> </p><p>You can also perform X-ray CT simulation with a <b>voxelized phantom</b> as below.</p><p>The GATE output (projection data) was reconstructed with OSCaR software.</p><p>In my opinion, the NCAT phantom could also be implemented easily by modifying the GATE macro files.(Please refer the my previous mail about NCAT phantom)</p><p> </p><p> </p><p><img src="cid:1701af164fd7cccbb161" loading="lazy"> </p><p> </p><p>Hopefully, my answers would be helpful for your X-ray CT simulation with NCAT voxelized phantom.</p><p> </p><p>If you have any question, please let me know.</p><p> </p><p>Best regards,</p><p> </p><p>Han Gyu Kang, Ph.D.</p><p> </p><p>Imaging Physics Group, NIRS-QST, Japan.</p><p> </p><p style="font-size:10pt;font-family:sans-serif;padding:0px 0px 0px 10pt"><span>-----Original Message-----</span><br><b>From:</b> "Howard"<<a href="mailto:lomahu@gmail.com" target="_blank" rel="noreferrer noopener">lomahu@gmail.com</a>> <br><b>To:</b> "강한규"<<a href="mailto:lovehangulp@naver.com" target="_blank" rel="noreferrer noopener">lovehangulp@naver.com</a>>; <br><b>Cc:</b> <<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank" rel="noreferrer noopener">gate-users@lists.opengatecollaboration.org</a>>; <br><b>Sent:</b> 2020-02-06 (목) 12:02:28 (GMT+09:00)<br><b>Subject:</b> Re: [Gate-users] How to import NCAT phantom to Gate (NCAT phantom with ECAT PET)<br> </p><div dir="ltr"><div dir="ltr"><div>Hi Dr. Kang,</div><div> </div><div>I am trying to simulate respiratory motion with X-ray CT. It appears from the GATE documentation page that NCAT phantom can be used:</div><div> </div><div><a href="https://opengate.readthedocs.io/en/latest/voxelized_source_and_phantom.html#real-time-motion-management-for-voxellized-source-and-phantom" rel="noreferrer noopener" target="_blank">https://opengate.readthedocs.io/en/latest/voxelized_source_and_phantom.html#real-time-motion-management-for-voxellized-source-and-phantom</a></div><div> </div><div>However, the above page only shows for emission imaging, also from your posting. I wonder whether it is possible for CT simulation. Thank you very much for any help.</div><div> </div><div>Best regards,</div><div> </div><div>Howard</div></div></div><br><div><div dir="ltr">On Mon, Jan 13, 2020 at 9:48 PM 강한규 <<a href="mailto:lovehangulp@naver.com" rel="noreferrer noopener" target="_blank">lovehangulp@naver.com</a>> wrote: </div><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left:1px solid rgb(204,204,204)"><div><div style="font-family:Gulim,sans-serif;font-size:10pt"><p>Dear Jalil,</p><p> </p><p>I have an experience in importing NCAT phantom into GATE before.</p><p style="font-size:13.33px"> </p><p>Attached is the manual how to use NCAT phantom with an ECAT PET system in GATEv6.2 (not vGATE).</p><p style="font-size:13.33px"><span style="font-size:10pt">(I'm sorry that the manual was written in Korean.)</span> </p><div><span style="font-size:10pt"> </span></div><p><span style="font-size:10pt">The NCAT phantoms (activity and attenuation bin files) are located on the "data" folder.(slide#8-9)</span> </p><p><span style="font-size:13.33px">The "rangeTranslator" was used for the mapping of the voxel value of the NCAT phantom to radioactivity (slide#10) and material type (slide#11).</span><span style="font-size:10pt"> </span></p><p> </p><p>The voxelized NCAT phantom (atn.bin) was imported by using "regularMatrix" command.(slide#20)</p><p>The voxelized NCAT source (acti.bin) was imported by using "RTVPhantom" command.(slide#25-26)</p><p> </p><p><span style="font-size:10pt">Hopefully, the manual would be helpful for your research work.</span> </p><p><span style="font-size:10pt"> </span></p><p><span style="font-size:10pt">If you have any question, please let me know.</span></p><p><span style="font-size:10pt"><br>Best regards,</span></p><p><span style="font-size:10pt"> </span></p><p><span style="font-size:10pt">Han Gyu Kang, Ph.D.</span></p><p><span style="font-size:10pt"> </span></p><p><span style="font-size:10pt">Imaging Physics Group, NIRS-QST</span></p><p> </p><p style="padding:0px 0px 0px 10pt;font-family:sans-serif;font-size:10pt"><span>-----Original Message-----</span><br><b>From:</b> "Jalil Pirayesh"<<a href="mailto:pirayeshj@gmail.com" rel="noreferrer noopener" target="_blank">pirayeshj@gmail.com</a>> <br><b>To:</b> <<a href="mailto:gate-users@lists.opengatecollaboration.org" rel="noreferrer noopener" target="_blank">gate-users@lists.opengatecollaboration.org</a>>; <br><b>Cc:</b> <br><b>Sent:</b> 2020-01-13 (월) 22:32:05 (GMT+09:00)<br><b>Subject:</b> [Gate-users] How to import NCAT phantom to Gate<br> </p><div dir="ltr">Dear vGate users,<div> </div><div>Could someone please guide me on how to import the NCAT phantom files (XX_atn_av.bin and XX_act_av.bin) to the vGate phantom.mac without transferring to interfile and/or analyze format? in other words, how to prepare a phantom.mac with the files?</div><div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><p><font face="times new roman, serif"><b>Regards</b></font></p><p><font face="times new roman, serif"><b>Jalil </b></font></p><p><font face="times new roman, serif"> </font></p>
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