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Dear Ladies and Gentlemen, Hologic Austria was very helpful by asking you for a manual, which describes required Technical Quality Control (TQC) evaluations for the CEDM (CE2D) feature. In the mean time, I got this manual and was able to review</div>
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<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">Dear Ladies and Gentlemen,</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">Hologic Austria was very helpful by asking you for a manual, which describes required Technical Quality Control (TQC) evaluations for the CEDM (CE2D) feature. </div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">In the mean time, I got this manual</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"> <img src="cid:ii_mdxjjpf30" alt="image.png" width="121" height="26" style="font-family:Arial,Helvetica,sans-serif;margin-right:0px"></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="font-family:Arial,Helvetica,sans-serif"></span>and was able to review also what Hologic recommends as a suitable TQC for its CEDM feature.</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">Let me first introduce myself. I am a member of the team, which develops an update to the Austrian standards document on TQC for mammography systems, which this time covers not only 2D but also 3D, Biopsy and CEDM.</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">The TQC for the LE image is standard 2D, while for HE and recombined LE+HE images other specific TQC measurements are needed.</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"> </div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><div class="gmail_default">As far as I understand now, Hologic TQC focusses mainly on AGD constancy for LE and HE exposures and also on artefact evaluations and image quality with ACR phantom of the recombined image (this image is used by radiologists for readout). </div><div class="gmail_default">This is good but in my opinion not sufficient. For image quality evaluation in CEDM a better suitable phantom is needed, which contains iodine structures of different densities on multiple background material (breast density simulations). I have verified this with specific measurements by using the CIRS 22 phantom. </div><div class="gmail_default">The ACR phantom is in my opinion not suitable for evaluating CEDM image quality on the recombined image, where also iodine contrast needs to be recognized. </div></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">I would very much appreciate your view and experience on this subject. </div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">Best regards</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">Friedrich </div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><br></div><br clear="all"></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font face="times new roman, serif" color="#999999">DDr. Friedrich Semturs, MAS</font></div><div><font face="times new roman, serif" color="#999999"><span class="gmail_default" style="font-family:arial,sans-serif;font-size:small">C</span>onsul<span class="gmail_default" style="font-family:arial,sans-serif;font-size:small">tant Medical Physics</span></font></div><div dir="ltr"><font face="times new roman, serif" color="#999999">MUW - Medi<span class="gmail_default" style="font-family:arial,sans-serif;font-size:small">cal </span>Universit<span class="gmail_default" style="font-family:arial,sans-serif;font-size:small">y Vienna </span> </font></div><div dir="ltr"><font color="#999999"><u style="font-family:"times new roman",serif;font-size:12.8px"><a href="mailto:friedrich@semturs.com" target="_blank">friedrich@semturs.com</a></u><font face="times new roman, serif"><br></font></font></div><div><br></div></div></div></div></div></div></div></div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Am Mo., 4. Aug. 2025 um 18:32 Uhr schrieb Adam Springer via Intl_dxmedphys_wd_osu_list <<a href="mailto:intl_dxmedphys_wd_osu_list@lists.osu.edu" target="_blank">intl_dxmedphys_wd_osu_list@lists.osu.edu</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Can anyone on the list share a digital copy of Revision 8 of Hologic’s Dimensions QC manual?<br>
<br>
Thanks in advance!<br>
Adam<br>
<br>
=========================<br>
Adam C. Springer, MS, DABR®<br>
Medical Physicist<br>
KLS Physics Group, LLC<br>
124 Killgore Rd<br>
Ruston, LA 71270<br>
318-272-8292</blockquote></div>
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