{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T22:24:58Z","timestamp":1778106298663,"version":"3.51.4"},"reference-count":33,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2021,5,21]],"date-time":"2021-05-21T00:00:00Z","timestamp":1621555200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,5,21]],"date-time":"2021-05-21T00:00:00Z","timestamp":1621555200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Med Imaging"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Primary hyperparathyroidism (PHPT) results from an excess of parathyroid hormone (PTH) produced from an overactive parathyroid gland. The study aimed to explore the sonographic features of parathyroid adenomas and assess the diagnostic performance of ultrasonography (US) and Tc-99m MIBI SPECT\/CT for preoperative localization of parathyroid adenomas.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 107 patients were enrolled in this retrospective study who had PHPT and underwent parathyroidectomy. Of the 107 patients, 97 performed US and Tc-99m MIBI SPECT\/CT examinations for preoperative localization of parathyroid nodules. The sensitivity and accuracy of each modality were calculated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      In this study, residual parathyroid sign and polar vascular sign were identified as characteristic US features of parathyroid adenomas. These manifestations were closely related to the size of the abnormal parathyroid lesions. Among the 108 parathyroid nodules from 97 patients with PHPT, the sensitivity and accuracy of US for locating the parathyroid nodules were significantly higher than those of Tc-99m MIBI SPECT\/CT (93.0% vs. 63.0% and 88.0% vs. 63.0% respectively; \u03c7\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u200926.224, 18.227 respectively, P\u2009&lt;\u20090.001). The differences between US\u2009+\u2009Tc-99m MIBI SPECT\/CT and Tc-99m MIBI SPECT\/CT-alone were statistically significant (\u03c7\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u200933.410, 21.587 respectively, P\u2009&lt;\u20090.001), yet there were no significant differences in the sensitivity or accuracy between US\u2009+\u2009Tc-99m MIBI SPECT\/CT and US-alone (\u03c7\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.866, 0.187 respectively, P\u2009=\u20090.352 and 0.665).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>US shows significantly better sensitivity and accuracy for localization of parathyroid adenomas than Tc-99m MIBI SPECT\/CT. However, US combined with Tc-99m MIBI SPECT\/CT is of great clinical value in the preoperative localization of parathyroid nodules in patients with PHPT.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12880-021-00616-1","type":"journal-article","created":{"date-parts":[[2021,5,21]],"date-time":"2021-05-21T04:03:04Z","timestamp":1621569784000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Efficacy of ultrasonography and Tc-99m MIBI SPECT\/CT in preoperative localization of parathyroid adenomas causing primary hyperthyroidism"],"prefix":"10.1186","volume":"21","author":[{"given":"Ruigang","family":"Lu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Yin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruijun","family":"Guo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bojun","family":"Wei","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mulan","family":"Jin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiang","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chun","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiuzhang","family":"Lv","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,5,21]]},"reference":[{"issue":"63","key":"616_CR1","doi-asserted-by":"publisher","first-page":"398","DOI":"10.15557\/JoU.2015.0037","volume":"15","author":"M Nieciecki","year":"2015","unstructured":"Nieciecki M, Cacko M, Krolicki L. 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According to the ethical committee policy, this is a completely anonymous, retrospective study and is exempt from informed consent from patients. We confirm that all methods were performed in accordance with the relevant guidelines and regulations.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"87"}}