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I know Stephanie asked for offline feedback, but I would love to hear from anyone who feels good about their gout protocols/workflow on the GE Apex. It has been a few years now since we tried implementing dual energy gout imaging, but we never</div>
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I know Stephanie asked for offline feedback, but I would love to hear from anyone who feels good about their gout protocols/workflow on the GE Apex.</div>
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It has been a few years now since we tried implementing dual energy gout imaging, but we never got to a point where our radiologists felt confident in identifying tophi. We had GE in house to help set things up and had several remote meetings to go over our
scans and tweak settings but ultimately abandoned the project. We could never dial in cutoffs to get both the sensitivity and specificity to make it worthwhile.</div>
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At the time (I haven’t looked in a few years not), all the literature on dual energy gout imaging was done on a dual tube system. My conclusion was that GE’s dual energy solution is technically really cool, but it just doesn’t get the x-ray spectra separation
that is needed for reliable material decomposition. Fast kV switching simply isn’t the same as two tubes with different kVp and filters.
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I am certainly not the expert in CT physics and would love to hear what others who are happy with their outcomes are doing.</div>
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Thank you,</div>
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Andrew</div>
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Andrew R. Hoy, PhD, DABR</p>
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<b>From:</b> Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list-bounces@lists.osu.edu> on behalf of Stephanie M. Leon via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list@lists.osu.edu><br>
<b>Sent:</b> Thursday, June 11, 2026 8:38 AM<br>
<b>To:</b> intl_dxmedphys_wd_osu_list@lists.osu.edu <intl_dxmedphys_wd_osu_list@lists.osu.edu><br>
<b>Subject:</b> [EXTERNAL] [Intl_DxMedPhys] DECT gout studies </div>
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Hello all, If anyone has experience with DECT processing of gout studies on a GE Apex, can you please contact me off-list? I’m trying to figure out settings and workflow. Thanks, Stephanie M. Leon, PhD, DABR, DABSNM Chief of Diagnostic</div>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;">Hello all,</p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"> </p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;">If anyone has experience with DECT processing of gout studies on a GE Apex, can you please contact me off-list? I’m trying to figure out settings and workflow.</p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"> </p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;">Thanks,</p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"> </p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"> </p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: Arial, sans-serif; color: rgb(99, 144, 68);"><b>Stephanie M. Leon, PhD, DABR, DABSNM</b></span></p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: Arial, sans-serif; color: rgb(0, 102, 79);">Chief of Diagnostic Medical Physics</span></p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: Arial, sans-serif; color: rgb(0, 102, 79);">Associate Professor of Radiology<br>
<br>
</span></p>
<p style="margin: 0in; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: Arial, sans-serif; color: rgb(0, 102, 79);">Tel (603) 650-3796<br>
Dartmouth-Health.org</span></p>
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