{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T04:26:34Z","timestamp":1745468794898,"version":"3.40.4"},"reference-count":16,"publisher":"S. Karger AG","issue":"5-6","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Urol Int"],"published-print":{"date-parts":[[2021]]},"abstract":"<b><i>Introduction:<\/i><\/b> The diffusion-weighted imaging (DWI) technique with intravoxel incoherent motion model enables the estimation of capillary blood volume as a perfusion-related parameter- (PP-) value. Therefore, the PP-value of the kidney theoretically reflects renal capillary blood volume. We analyzed the usefulness of the PP-value in estimating postoperative renal function in upper-tract urothelial carcinoma (UTUC) patients. <b><i>Methods:<\/i><\/b> Forty-eight consecutive patients who underwent magnetic resonance imaging before radical nephroureterectomy from 2011 to 2018 were analyzed. A PP-map displaying PP-values on a pixel-by-pixel basis was created from DWI signals (<i>b<\/i>-values of 0, 500, and 1,000 s\/mm<sup>2<\/sup>). Two readers independently analyzed the renal PP-value. DWI-based split renal function (SRF) of the intact kidney was calculated by splitting serum Cr-based preoperative estimated glomerular filtration rates (eGFRs). The predictive accuracy of the method was evaluated using renography as the reference standard. <b><i>Results:<\/i><\/b> Interobserver analysis revealed an excellent correlation value of 0.97. The SRF value showed a good linear correlation with the observed postoperative eGFR (<i>r<\/i> = 0.76, <i>p<\/i> &#x3c; 0.001). The predictive accuracy of the DWI-based method was similar to that of the nuclear-based method. <b><i>Conclusion:<\/i><\/b> This DWI-based evaluation of capillary blood volume provides a noninvasive tool for predicting the postoperative renal function, thereby facilitating the management of UTUC patients. <\/jats:p>","DOI":"10.1159\/000512878","type":"journal-article","created":{"date-parts":[[2021,3,29]],"date-time":"2021-03-29T21:05:22Z","timestamp":1617051922000},"page":"507-513","source":"Crossref","is-referenced-by-count":1,"title":["Potential of Perfusion Magnetic Resonance Imaging to Predict Residual Renal Function after Radical Nephroureterectomy"],"prefix":"10.1159","volume":"105","author":[{"given":"Yuma","family":"Waseda","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soichiro","family":"Yoshida","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuki","family":"Arita","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Taro","family":"Takahara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tsuyoshi","family":"Sakamoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazutaka","family":"Saito","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuhisae","family":"Fujii","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2021,2,24]]},"reference":[{"doi-asserted-by":"publisher","key":"ref1","DOI":"10.1097\/00004424-199311001-00025"},{"doi-asserted-by":"publisher","key":"ref2","DOI":"10.2215\/CJN.01260308"},{"doi-asserted-by":"publisher","key":"ref3","DOI":"10.1148\/radiology.168.2.3393671"},{"doi-asserted-by":"publisher","key":"ref4","DOI":"10.1002\/mrm.1910270116"},{"doi-asserted-by":"publisher","key":"ref5","DOI":"10.3174\/ajnr.A3227"},{"doi-asserted-by":"publisher","key":"ref6","DOI":"10.1371\/journal.pone.0112866"},{"doi-asserted-by":"publisher","key":"ref7","DOI":"10.1016\/j.neuroimage.2017.12.062"},{"doi-asserted-by":"publisher","key":"ref8","DOI":"10.1053\/j.ajkd.2008.12.034"},{"doi-asserted-by":"publisher","key":"ref9","DOI":"10.2214\/ajr.138.3.565"},{"doi-asserted-by":"publisher","key":"ref10","DOI":"10.2307\/2532051"},{"doi-asserted-by":"publisher","key":"ref11","DOI":"10.1111\/j.1442-2042.2007.01950.x"},{"doi-asserted-by":"publisher","key":"ref12","DOI":"10.1148\/radiol.12111248"},{"doi-asserted-by":"publisher","key":"ref13","DOI":"10.1097\/RLI.0b013e3181b62271"},{"doi-asserted-by":"publisher","key":"ref14","DOI":"10.1007\/s00330-009-1679-9"},{"doi-asserted-by":"publisher","key":"ref15","DOI":"10.1093\/jjco\/hyr199"},{"doi-asserted-by":"publisher","key":"ref16","DOI":"10.1155\/2014\/529186"}],"container-title":["Urologia Internationalis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/512878","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/512878","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T16:08:11Z","timestamp":1745424491000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000512878"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":16,"journal-issue":{"issue":"5-6","published-online":{"date-parts":[[2021,4,30]]},"published-print":{"date-parts":[[2021,5,3]]}},"URL":"https:\/\/doi.org\/10.1159\/000512878","archive":["Portico"],"relation":{},"ISSN":["0042-1138","1423-0399"],"issn-type":[{"type":"print","value":"0042-1138"},{"type":"electronic","value":"1423-0399"}],"subject":[],"published":{"date-parts":[[2021]]}}}