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Hi group,
I was curious if using both versions of freesurfer 7.2 & 74 would be acceptable? We realized some of our data contained both due to some miscommunication.
Would the recommendation be to use just one 7.X version, or are the two similar enough to use concurrently?
Lisa
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Hi Lisa,
I think it depends on your ultimate goal and how much version differences might affect your experiments. There is some literature suggesting that mixing FreeSurfer versions can improve generalisation for ML models (see: https://secure-web.cisco.com/1wBMnyBu9Ksv7DUIpfrUb6u8oOnXjCFkB3ILJ77y5wQiv0w... https://secure-web.cisco.com/1wClK6CC9AAiFpgEXK31JJZpR9E41aW_F5ULr2oX_iGYG8nBR4OQW2ZYdEzd5vmFeMldh3ws3fYSgGhms1mCeotcHFuibW3m9GGG-Gq9aRgz1PYMfLbXdCMpeRIjxiEInmnXZYRX4ZEv-i2dWCnkXC7GM6grqoV06S2dlIgYDslyu_tmwXWx-qTScEh8lQi8F-Vxtpq53S5f7baM5S3lu0P7oyBptdpFXHVsOCGw5553HyiyKXJ7T7pDeqY55akQ7fj1EJvXc1cYMai1aNNnBiITtM893WW8oSU8DzZX566WP0VW8zad8kAoS8yPZwSizWnCaHPPBukuSNPk7Ybo0eg/https%3A%2F%2Fdoi.org%2F10.1016%2Fj.ynirp.2024.100214%3Futm_source%3Dchatgpt.com).
That said, I’m not an expert in this area, so please take this as a pointer rather than firm advice.
Best, Rafa
El jue, 28 ago 2025 a las 20:06, Taylor, Lisa (ltaylor2@hs.uci.edu) escribió:
External Email - Use CautionHi group,
I was curious if using both versions of freesurfer 7.2 & 74 would be acceptable? We realized some of our data contained both due to some miscommunication.
Would the recommendation be to use just one 7.X version, or are the two similar enough to use concurrently?
Lisa _______________________________________________ Freesurfer mailing list -- freesurfer@nmr.mgh.harvard.edu To unsubscribe send an email to freesurfer-leave@nmr.mgh.harvard.edu
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Thank you for that Rafa. We'd be using FS for different analyses (diffusion, PET, etc.), but from what I gather this may affect volumetric data the most due to the increased accuracy in 7.4 segmentation. Does that sound accurate? I am currently sifting through the literature, but would love some input from the group.
Lisa ________________________________ From: Rafael Navarro rafa.navarrogo@gmail.com Sent: Thursday, August 28, 2025 11:14 AM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Re: Version 7.2 & 7.4
External Email - Use Caution
Hi Lisa,
I think it depends on your ultimate goal and how much version differences might affect your experiments. There is some literature suggesting that mixing FreeSurfer versions can improve generalisation for ML models (see: https://secure-web.cisco.com/1EhtTqY94KKIGZ7faBSR_uVB8wAcatIaSfjBVo5Ri7F3nWq...https://secure-web.cisco.com/1RN3RfqYWfdfSr9TwJ7cGeVCNvbsJ4j7NGNqg7lGZx0TxMmmCDVnVyZlQR9QiwXsxfB3UVAakwDlH-TSzc47gMiZjrYnwpOjVu2zItZt94oQkqOJJ5fSDItuiHNPJQbSKwldRFN8JoZTkeRANVcLuyZjy7Vq1LASTytI64fJ-5UmNbVuajpYoeRGm2TtGjcKoG6qn7SyvvHo_Hh32BTcvONSd79z8K1uYmR2ASiDjems0EEUWdGBu0HxM3p28JD7z8OVlA1BCG732-PDm3cnh1A11UYR_ZxHrWOuBK69ats5U6WhxMeMoNr-N7hcWInFO6pOnJ7HFGiYZe1Ylwx9YTQ/https%3A%2F%2Furldefense.com%2Fv3%2F__https%3A%2F%2Fsecure-web.cisco.com%2F1wClK6CC9AAiFpgEXK31JJZpR9E41aW_F5ULr2oX_iGYG8nBR4OQW2ZYdEzd5vmFeMldh3ws3fYSgGhms1mCeotcHFuibW3m9GGG-Gq9aRgz1PYMfLbXdCMpeRIjxiEInmnXZYRX4ZEv-i2dWCnkXC7GM6grqoV06S2dlIgYDslyu_tmwXWx-qTScEh8lQi8F-Vxtpq53S5f7baM5S3lu0P7oyBptdpFXHVsOCGw5553HyiyKXJ7T7pDeqY55akQ7fj1EJvXc1cYMai1aNNnBiITtM893WW8oSU8DzZX566WP0VW8zad8kAoS8yPZwSizWnCaHPPBukuSNPk7Ybo0eg%2Fhttps*3A*2F*2Fdoi.org*2F10.1016*2Fj.ynirp.2024.100214*3Futm_source*3Dchatgpt.com__;JSUlJSUlJQ!!OLgoXmg!WldY8fG9c9xBJrAmNRfNN7YXSn16s00FKHq0BoF7HBKE3gJQ2tJV0ynH1R1P4IEN_gAG1C0ReqWUoCeR-gemX-AuBUs$).
That said, I’m not an expert in this area, so please take this as a pointer rather than firm advice.
Best, Rafa
El jue, 28 ago 2025 a las 20:06, Taylor, Lisa (<ltaylor2@hs.uci.edumailto:ltaylor2@hs.uci.edu>) escribió:
External Email - Use Caution
Hi group,
I was curious if using both versions of freesurfer 7.2 & 74 would be acceptable? We realized some of our data contained both due to some miscommunication.
Would the recommendation be to use just one 7.X version, or are the two similar enough to use concurrently?
Lisa _______________________________________________ Freesurfer mailing list -- freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu To unsubscribe send an email to freesurfer-leave@nmr.mgh.harvard.edumailto:freesurfer-leave@nmr.mgh.harvard.edu https://secure-web.cisco.com/1QVXkYyMAhU9EGhlYP_JrkS_4obFUwu3XzkxMDJXXX3hWqN...https://secure-web.cisco.com/1aTMhV9YGuHYSudAbBlu53ddM4aXkxrM5u5H3iH0bL0exhkKXJCDX8065HttAIborFxehhL6DmAdmHZC338-ql43Uh3dDpeeoWo3MUqH3Ei7OTzXsCMloDXPMsexhq9UXUIWtMBXPnJ5vsu9HDmNqDR7crL1s0kz11EPXvYmI-QD1GA1vmJCKkTgIWBVf0raPZ64kFabqiTHyrVEh_jWvwdsyYPMiYmh3BNzGTqv0RB4nZ13IO0Sci3YPo-hdEFoI_mUTDf_9wn7kLutp6nD7q68QflKO4NMdvrwETx8kQssihwPTCjKEOShsI0RYbiYR1fjFJ1RYyvBnzP9w5IyeAQ/https%3A%2F%2Furldefense.com%2Fv3%2F__https%3A%2F%2Fsecure-web.cisco.com%2F1EyMUqVNkqpraNUQepOdWRZDwRtCRLOAwff11MfSNbOpZYOmdlBHqJaAF0t8ucBXatLi-8KMP7Isk-Ub5uyM-9RtVIAaPpggLliK5l2iijg_4qjnSdhgcCOjTFweduWNKSLM3g4LITAn3t0T0aWLf7eILj_yfUkNr9HSyTd5r6LBb-9kNKBtP-aQA84_1Y_DKqhjIFFNXNsu18IJ5j2QTSlEoxg6GRsRxTvqk33puePtbZR0c7opA_1tyz0_vSNU3XYuQbdTznRplEbCEZ7BD5t3NeF9vzM2rEZVnkNjGM6ybxJOPshIZElPE_UwmophWx0lbmgML1CQRU29P1b_35A%2Fhttps*3A*2F*2Fmail.nmr.mgh.harvard.edu*2Fmailman3*2Flists*2Ffreesurfer*40nmr.mgh.harvard.edu*2F__;JSUlJSUlJSU!!OLgoXmg!WldY8fG9c9xBJrAmNRfNN7YXSn16s00FKHq0BoF7HBKE3gJQ2tJV0ynH1R1P4IEN_gAG1C0ReqWUoCeR-gemJ6OoZ6M$ The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Mass General Brigham Compliance HelpLine at https://secure-web.cisco.com/1n9-Sru5JXqrw1KCqo4r3CBmTqd3jM_nFmyR41_BLR94Pfv...https://secure-web.cisco.com/1ZYgYdMYgUXoV9wrcW6-l0K40-KoiofRF21XDDvNUrwOEZNL8urJ51C_0TCfdV5o45kVpnw-BLS84AZjj2dy4UFgw8eOfrQzLgVr3frWaYWqe26rP9gd21v2sX5mK5wdMlOsFltQ2QWMfeI9CxmcVOOyze1Dx4p5twJlB2jtXFWxlCsqRGNAbW5Y3vsOoRkkNA4-mwrdlkL4tOFIXS0qbjvbcEAAbfskk1_wqHGoGsiBkrHMKo0QLe5KT-Oy7hPJdenbNk9whByEFfYtCTgVhV0dKW-0EVFbL8JKrm1ddpf2LZXUuUGfPYXTeGT5mUpbgL79wvfD77bVijRHzTkiNmA/https%3A%2F%2Furldefense.com%2Fv3%2F__https%3A%2F%2Fsecure-web.cisco.com%2F1Zgpejl-0CE6hedCctZanyiSs0A0BhKZZKgCC-EzpfqVRrNYXfqlSDdSvCYP4ZjyszqDmRN5_1DBU9Xgv0LRCtukZT9Y7X9wqA4B2wYN7fkuJ3KFouU96D4u_sS0rbbtLi3J1f5bvS-Z6CFntfrFdlX_u6ObIRTZyiL7tbc08HRv3W42Lx57h41qLZ432ChyxZJFuskDHJogC7KNj3D5VwtmHK6XN1WpV8zRBFTMl4985s2JbeSN7eiVHj9s-yN9LvBDbkLVu_NATmebbkw-7g4YmS63tmE-WegAhUtLFKCUsRHM-6R6WDcN6E412CE3bI3x5OPPbyMb-7Pd1kuOBDw%2Fhttps*3A*2F*2Fwww.massgeneralbrigham.org*2Fcomplianceline__;JSUlJQ!!OLgoXmg!WldY8fG9c9xBJrAmNRfNN7YXSn16s00FKHq0BoF7HBKE3gJQ2tJV0ynH1R1P4IEN_gAG1C0ReqWUoCeR-gemWedtqcU$ <https://secure-web.cisco.com/1n9-Sru5JXqrw1KCqo4r3CBmTqd3jM_nFmyR41_BLR94Pfv...https://secure-web.cisco.com/1ZYgYdMYgUXoV9wrcW6-l0K40-KoiofRF21XDDvNUrwOEZNL8urJ51C_0TCfdV5o45kVpnw-BLS84AZjj2dy4UFgw8eOfrQzLgVr3frWaYWqe26rP9gd21v2sX5mK5wdMlOsFltQ2QWMfeI9CxmcVOOyze1Dx4p5twJlB2jtXFWxlCsqRGNAbW5Y3vsOoRkkNA4-mwrdlkL4tOFIXS0qbjvbcEAAbfskk1_wqHGoGsiBkrHMKo0QLe5KT-Oy7hPJdenbNk9whByEFfYtCTgVhV0dKW-0EVFbL8JKrm1ddpf2LZXUuUGfPYXTeGT5mUpbgL79wvfD77bVijRHzTkiNmA/https%3A%2F%2Furldefense.com%2Fv3%2F__https%3A%2F%2Fsecure-web.cisco.com%2F1Zgpejl-0CE6hedCctZanyiSs0A0BhKZZKgCC-EzpfqVRrNYXfqlSDdSvCYP4ZjyszqDmRN5_1DBU9Xgv0LRCtukZT9Y7X9wqA4B2wYN7fkuJ3KFouU96D4u_sS0rbbtLi3J1f5bvS-Z6CFntfrFdlX_u6ObIRTZyiL7tbc08HRv3W42Lx57h41qLZ432ChyxZJFuskDHJogC7KNj3D5VwtmHK6XN1WpV8zRBFTMl4985s2JbeSN7eiVHj9s-yN9LvBDbkLVu_NATmebbkw-7g4YmS63tmE-WegAhUtLFKCUsRHM-6R6WDcN6E412CE3bI3x5OPPbyMb-7Pd1kuOBDw%2Fhttps*3A*2F*2Fwww.massgeneralbrigham.org*2Fcomplianceline__;JSUlJQ!!OLgoXmg!WldY8fG9c9xBJrAmNRfNN7YXSn16s00FKHq0BoF7HBKE3gJQ2tJV0ynH1R1P4IEN_gAG1C0ReqWUoCeR-gemWedtqcU$> .
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If you don't use any special flags, then all the 7.X versions will give identical results.
On 8/28/2025 2:05 PM, Taylor, Lisa wrote:
External Email - Use Caution
Hi group,
I was curious if using both versions of freesurfer 7.2 & 74 would be acceptable? We realized some of our data contained both due to some miscommunication.
Would the recommendation be to use just one 7.X version, or are the two similar enough to use concurrently?
Lisa
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