{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T21:48:44Z","timestamp":1791841724515,"version":"4.3.4"},"reference-count":24,"publisher":"S. Karger AG","issue":"4","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"},{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nephron"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>&lt;b&gt;&lt;i&gt;Background:&lt;\/i&gt;&lt;\/b&gt; Kidney volume (KV) becomes clinically relevant in autosomal dominant polycystic kidney disease (ADPKD) management. KV can be conveniently estimated (ceKV) using ellipsoid volume equations with three axes measurements; however, the accuracy and reliability are unknown. &lt;b&gt;&lt;i&gt;Methods:&lt;\/i&gt;&lt;\/b&gt; KVs of 347 kidneys in 177 consecutive ADPKD patients were determined with a volumetric method (standard-KV), and ceKV was calculated using six different ellipsoid equations with three axes measurements using magnetic resonance imaging. The inter- and intraobserver reliabilities were analyzed using intraclass correlation coefficients (ICCs). Ellipsoid-KVs were obtained by linear regression analysis between standard-KV and ceKVs, and six ellipsoid-KVs were validated with a bootstrap model. &lt;b&gt;&lt;i&gt;Results:&lt;\/i&gt;&lt;\/b&gt; The ICCs of intra- and interobserver reliabilities in standard-KV and axes measurements were highly reliable. All ceKVs underestimated standard-KV and % differences between ceKV and standard-KV were reduced by ellipsoid-KVs. Bootstrap analyses suggested that six ellipsoid-KVs reliably simulated standard-KV. &lt;b&gt;&lt;i&gt;Conclusion:&lt;\/i&gt;&lt;\/b&gt; Among six ellipsoid-KVs, ellipsoid-KV&lt;sub&gt;3&lt;\/sub&gt; = 84 + 1.01 x \u03c0\/24 \u00d7 Length \u00d7 (sum of two width measurements)&lt;sup&gt;2&lt;\/sup&gt; relatively accurately simulated the standard-KV. Kidney volume estimation using ellipsoid equations is reliably applied to clinical management of ADPKD while recognizing wide scattering in the difference between estimated and volumetrically measured kidney volume.<\/jats:p>","DOI":"10.1159\/000381476","type":"journal-article","created":{"date-parts":[[2015,4,15]],"date-time":"2015-04-15T21:01:24Z","timestamp":1429131684000},"page":"253-262","source":"Crossref","is-referenced-by-count":38,"title":["Kidney Volume Estimations with Ellipsoid Equations by Magnetic Resonance Imaging in Autosomal Dominant Polycystic Kidney Disease"],"prefix":"10.1159","volume":"129","author":[{"given":"Eiji","family":"Higashihara","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kikuo","family":"Nutahara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takatsugu","family":"Okegawa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitsuhiro","family":"Tanbo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hidehiko","family":"Hara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isao","family":"Miyazaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kuninori","family":"Kobayasi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshiaki","family":"Nitatori","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2015,4,16]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa054341"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1681\/ASN.2006080835"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1007\/s10157-013-0834-4"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.09500911"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1681\/ASN.2013101138"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1097\/00004728-200007000-00019"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.03750708"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1159\/000324039"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.00930306"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1681\/ASN.2008050507"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1053\/j.ajkd.2010.11.029"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.03530411"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1205511"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1159\/000092915"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.86.2.420"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2003.07.031"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1016\/S0895-4356(03)00047-7"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1159\/000355375"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1159\/000045165"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.211.3.r99jn19623"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1053\/j.ajkd.2005.08.026"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1016\/j.semnephrol.2011.05.003"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1046\/j.1523-1755.2000.00433.x"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.02251205"}],"container-title":["Nephron"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/381476","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/381476","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/381476","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T17:54:49Z","timestamp":1745430889000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000381476"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015]]},"references-count":24,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2015,4,1]]},"published-print":{"date-parts":[[2015,5,5]]}},"URL":"https:\/\/doi.org\/10.1159\/000381476","archive":["Portico"],"relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.6084\/m9.figshare.5127868","asserted-by":"subject"}]},"ISSN":["1660-8151","2235-3186"],"issn-type":[{"value":"1660-8151","type":"print"},{"value":"2235-3186","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015]]}}}