{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T11:08:52Z","timestamp":1791544132438,"version":"4.3.4"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J reconstr Microsurg"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:p>\n            Background\u2003Limb circumference measurements (CM) and perometry are the preferred methods for objectively measuring arm volume in lymphedema surgery research. Understanding the measurement bias involved in these measuring systems is important to properly interpret and compare studies and their results.<\/jats:p><jats:p>\n            Methods\u2003Arm volumes from 91 patients were measured using sequential girths and the truncated cone formula (CM) and with the use of an automated perometer (perometry). The absolute volume of the largest arm (V), the volume difference between the arms (VD), and the relative difference between them (percentage of excess volume [PEV]) were calculated with both methods. The agreement between methods was assessed by the Pearson's correlation test and the Bland\u2013Altman's method.<\/jats:p><jats:p>\n            Results\u2003Correlations were strong for V (r\u2009=\u20090.99), VD (r\u2009=\u200988), and PEV (r\u2009=\u20090.86). Volumes measured by perometry were, on average, 10.6 mL smaller than volumes calculated from CM, while their limits of agreement (LOA) ranged from \u2212202 to 181 mL. The LOA represents the range we could expect the arm volumes measured with the two methods to differ by chance alone, 95% of the times. For VD, LOA was \u2212101 to 141 mL, with a mean difference of 19.9 mL, while PEV had a mean difference of 0.9%, with LOA ranging from \u22125 to 6.8%.<\/jats:p><jats:p>\n            Conclusion\u2003There is considerable measurement error between arm volume estimated by perometry and by CM. Volumes calculated with these methods should be compared with caution. Furthermore, we observed an increasingly relevant measurement bias in outcomes that are mathematically derived from arm volumes.<\/jats:p>","DOI":"10.1055\/s-0037-1606267","type":"journal-article","created":{"date-parts":[[2017,8,25]],"date-time":"2017-08-25T22:54:30Z","timestamp":1503701670000},"page":"029-034","source":"Crossref","is-referenced-by-count":19,"title":["Agreement between Perometry and Sequential Arm Circumference Measurements in Objective Determination of Arm Volume"],"prefix":"10.1055","volume":"34","author":[{"given":"Jaqueline","family":"Baiocchi","sequence":"first","affiliation":[{"name":"Department of Cutaneous Oncology, AC Camargo Cancer Center, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Larissa","family":"Campanholi","sequence":"first","affiliation":[{"name":"Department of Cutaneous Oncology, AC Camargo Cancer Center, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anke","family":"Bergmann","sequence":"first","affiliation":[{"name":"Molecular Carcinogenesis Program, Instituto Nacional do C\u00e2ncer \u2013 INCA\/MS, Rio de Janeiro, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jo\u00e3o","family":"Duprat","sequence":"first","affiliation":[{"name":"Department of Cutaneous Oncology, AC Camargo Cancer Center, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernardo","family":"Batista","sequence":"additional","affiliation":[{"name":"Breast Unit, Hospital S\u00edrio Liban\u00eas, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2017,8,25]]},"container-title":["Journal of Reconstructive Microsurgery"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0037-1606267.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,1,15]],"date-time":"2018-01-15T23:30:45Z","timestamp":1516059045000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0037-1606267"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,8,25]]},"references-count":0,"journal-issue":{"issue":"01","published-online":{"date-parts":[[2018,1,15]]},"published-print":{"date-parts":[[2018,1]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0037-1606267","relation":{},"ISSN":["0743-684X","1098-8947"],"issn-type":[{"value":"0743-684X","type":"print"},{"value":"1098-8947","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,8,25]]}}}