{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T15:02:06Z","timestamp":1761058926401},"reference-count":18,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2009,4,22]],"date-time":"2009-04-22T00:00:00Z","timestamp":1240358400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2009,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the efficacy of subtracted MR images from two sets of unenhanced three\u2010dimensional (3D) MR angiography data (tag\u2010on and tag\u2010off images) acquired simultaneously during a single breath\u2010hold in assessing the intraportal venous flow distribution to the distal branches from the superior mesenteric vein (SMV) and the splenic vein (SpV).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Tag\u2010on and tag\u2010off MR images during a single breath\u2010hold were obtained in 25 normal subjects. Tagging pulse was placed on the SMV or SpV separately to study inflow correlation of tagged blood into the portal vein.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>On the MR images tagged on the SMV, the mean ratings of visibility of tagged blood flow on the subtracted images were significantly higher (<jats:italic>P<\/jats:italic> = 0.016\u20130.0001) than those on the source images in almost all branches except second\u2010ordered left portal vein (<jats:italic>P<\/jats:italic> = 0.096). On the subtracted MR images tagged on SMV, the tramline (16 of the 25 subjects) was the most common distribution pattern of the tagged blood inflow in the main portal vein.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Subtracted MR images from two sets of unenhanced 3D MR angiography data (tag\u2010on and tag\u2010off images) acquired simultaneously would be effective to show the blood flow distribution of tagged blood into the portal vein and distal branches from SMV and SpV under the physiological condition without contrast injections. J. Magn. Reson. Imaging 2009;29:1224\u20131229. \u00a9 2009 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.21764","type":"journal-article","created":{"date-parts":[[2009,4,22]],"date-time":"2009-04-22T23:01:54Z","timestamp":1240441314000},"page":"1224-1229","source":"Crossref","is-referenced-by-count":7,"title":["Evaluation of intraportal venous flow distribution by unenhanced MR angiography using three\u2010dimensional fast spin\u2010echo with a selective tagging pulse: Efficacy of subtraction of tag\u2010on and tag\u2010off images acquired during a single breath\u2010hold"],"prefix":"10.1002","volume":"29","author":[{"given":"Katsuyoshi","family":"Ito","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayame","family":"Shimizu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshinobu","family":"Tsukuda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katsumi","family":"Sasaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masahiro","family":"Tanabe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naofumi","family":"Matsunaga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chisaki","family":"Jo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hitoshi","family":"Kanazawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsue","family":"Miyazaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,4,22]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/archsurg.1928.01140090055002"},{"key":"e_1_2_5_3_2","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1152\/ajplegacy.1945.143.1.105","article-title":"The physiological bilaterality of the portal circulation","volume":"143","author":"Hahn PF","year":"1945","journal-title":"Am J Physiol"},{"key":"e_1_2_5_4_2","first-page":"543","article-title":"An experimental study of intrahepatic distribution of portal blood","volume":"102","author":"Cole JW","year":"1956","journal-title":"Surg Gynecol Obstet"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5085(71)80032-X"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00252667"},{"key":"e_1_2_5_7_2","first-page":"51","article-title":"Hepatic distribution of blood flow from the superior or inferior mesenteric vein mapped by portal scintigraphy with iodine\u2010123\u2010iodoamphetamine","volume":"37","author":"Shiomi S","year":"1996","journal-title":"J Nucl Med"},{"key":"e_1_2_5_8_2","first-page":"77","article-title":"The clinical investigation of the portal circulation, with special reference to portal venography","volume":"24","author":"Atkinson M","year":"1955","journal-title":"Q J Med"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02233385"},{"key":"e_1_2_5_10_2","unstructured":"MiyazakiM TateishiF SugiuraS MachidaY KasaiY AbeH.Fresh blood imaging at 0.5\u2010T: natural blood contrast 3D MRA within single breathhold. 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