<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.0 20040830//EN" "journalpublishing.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="2.0" xml:lang="en" article-type="correction"><front><journal-meta><journal-id journal-id-type="nlm-ta">J Med Internet Res</journal-id><journal-id journal-id-type="publisher-id">jmir</journal-id><journal-id journal-id-type="index">1</journal-id><journal-title>Journal of Medical Internet Research</journal-title><abbrev-journal-title>J Med Internet Res</abbrev-journal-title><issn pub-type="epub">1438-8871</issn><publisher><publisher-name>JMIR Publications</publisher-name><publisher-loc>Toronto, Canada</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">v28i1e104952</article-id><article-id pub-id-type="doi">10.2196/104952</article-id><article-categories><subj-group subj-group-type="heading"><subject>Corrigenda and Addenda</subject></subj-group></article-categories><title-group><article-title>Correction: Confidence Measurement Metrics in Multimodal Large Language Models for Ultrasound-Based Radiology Cases: Comparative Evaluation Study of Self-Reported, Consistency-Based, and Hybrid Methods</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Han</surname><given-names>Taewon</given-names></name><degrees>MD</degrees><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author" corresp="yes"><name name-style="western"><surname>Shin</surname><given-names>Jaeseung</given-names></name><degrees>MD, PhD</degrees><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Lee</surname><given-names>Jeong Hyun</given-names></name><degrees>MD</degrees><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Gu</surname><given-names>Kyowon</given-names></name><degrees>MD</degrees><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff id="aff1"><institution>Department of Radiology, Samsung Medical Center</institution><addr-line>81 Irwon-ro, Irwon-dong - Gangnam-gu</addr-line><addr-line>Seoul</addr-line><country>Republic of Korea</country></aff><author-notes><corresp>Correspondence to Jaeseung Shin, MD, PhD, Department of Radiology, Samsung Medical Center, 81 Irwon-ro, Irwon-dong - Gangnam-gu, Seoul, 06351, Republic of Korea, 82 10-8714-7650; <email>dr.shinjs@gmail.com</email></corresp></author-notes><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>6</day><month>7</month><year>2026</year></pub-date><volume>28</volume><elocation-id>e104952</elocation-id><history><date date-type="received"><day>17</day><month>06</month><year>2026</year></date><date date-type="accepted"><day>17</day><month>06</month><year>2026</year></date></history><copyright-statement>&#x00A9; Jaeseung Shin, Jeong Hyun Lee, Kyowon Gu. Originally published in the Journal of Medical Internet Research (<ext-link ext-link-type="uri" xlink:href="https://www.jmir.org">https://www.jmir.org</ext-link>), 6.7.2026. </copyright-statement><copyright-year>2026</copyright-year><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research (ISSN 1438-8871), is properly cited. The complete bibliographic information, a link to the original publication on <ext-link ext-link-type="uri" xlink:href="https://www.jmir.org/">https://www.jmir.org/</ext-link>, as well as this copyright and license information must be included.</p></license><self-uri xlink:type="simple" xlink:href="https://www.jmir.org/2026/1/e104952"/><related-article related-article-type="corrected-article" ext-link-type="doi" xlink:href="10.2196/86498" xlink:title="Correction of" xlink:type="simple">https://www.jmir.org/2026/1/e86498</related-article></article-meta></front><body><p>In &#x201C;Confidence Measurement Metrics in Multimodal Large Language Models for Ultrasound-Based Radiology Cases: Comparative Evaluation Study of Self-Reported, Consistency-Based, and Hybrid Methods&#x201D; [<xref ref-type="bibr" rid="ref1">1</xref>], the authors noted three corrections.</p><p>First, the following footnote from Table 2 has been removed:</p><disp-quote><p><sup>c</sup>Statistically significant results (<italic>P</italic>&#x003C;.05) are marked with an asterisk.</p></disp-quote><p>Second, the Shannon entropy formula in the Confidence Measurement Metrics section currently appears as:</p><disp-quote><p>H=&#x2212;&#x2211; (<italic>i</italic>=1 to k) p<italic><sub>i</sub></italic> log<sub>2</sub></p></disp-quote><p>The formula now reads:</p><disp-quote><p><inline-formula><mml:math id="ieqn1"><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mi>H</mml:mi><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mo>&#x2211;</mml:mo><mml:msub><mml:mi>p</mml:mi><mml:mi>i</mml:mi></mml:msub><mml:msub><mml:mi>log</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mo>&#x2061;</mml:mo><mml:msub><mml:mi>p</mml:mi><mml:mi>i</mml:mi></mml:msub></mml:mstyle></mml:mstyle></mml:mrow></mml:mstyle></mml:math></inline-formula></p></disp-quote><p>Last, the cell for &#x201C;GPT-5&#x201D; and &#x201C;Majority vote (5), n (%)&#x201D; in Table 1 currently reads:</p><disp-quote><p>64 (68)</p></disp-quote><p>The values in this cell have been replaced with the following:</p><disp-quote><p>64 (68.09)</p></disp-quote><p>The correction will appear in the online version of the paper on the JMIR Publications website together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.</p></body><back><ref-list><title>References</title><ref id="ref1"><label>1</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Han</surname><given-names>T</given-names> </name><name name-style="western"><surname>Shin</surname><given-names>J</given-names> </name><name name-style="western"><surname>Lee</surname><given-names>JH</given-names> </name><name name-style="western"><surname>Gu</surname><given-names>K</given-names> </name></person-group><article-title>Confidence measurement metrics in multimodal large language models for ultrasound-based radiology cases: comparative evaluation study of self-reported, consistency-based, and hybrid methods</article-title><source>J Med Internet Res</source><year>2026</year><month>06</month><day>2</day><volume>28</volume><fpage>e86498</fpage><pub-id pub-id-type="doi">10.2196/86498</pub-id><pub-id pub-id-type="medline">42228942</pub-id></nlm-citation></ref></ref-list></back></article>