{"id":592,"date":"2017-02-03T02:36:57","date_gmt":"2017-02-03T07:36:57","guid":{"rendered":"https:\/\/my.vanderbilt.edu\/masi\/?p=592"},"modified":"2017-02-08T13:53:22","modified_gmt":"2017-02-08T18:53:22","slug":"comparison-of-multi-fiber-reproducibility-of-pas-mri-and-q-ball-with-empirical-multiple-b-value-hardi","status":"publish","type":"post","link":"https:\/\/my.vanderbilt.edu\/masi\/2017\/02\/comparison-of-multi-fiber-reproducibility-of-pas-mri-and-q-ball-with-empirical-multiple-b-value-hardi\/","title":{"rendered":"Comparison of Multi-Fiber Reproducibility of PAS-MRI and Q-ball With Empirical Multiple b-Value HARDI"},"content":{"rendered":"<p>Vishwesh Nath, Kurt G. Schilling, Justin Blaber, Zhaohua Ding, Adam W. Anderson, Bennett A Landman. \u201cComparison of Multi-Fiber Reproducibility of PAS-MRI and Q-ball With Empirical Multiple b-Value HARDI \u201d In Proceedings of the SPIE Medical Imaging Conference. Orlando, Florida, February 2017. Oral presentation.<\/p>\n<p><strong>Full Text:<\/strong><\/p>\n<h2>Abstract<\/h2>\n<p>Crossing fibers are prevalent in human brains and a subject of intense interest for neuroscience. Here, we examine two leading approaches (PAS and Q-ball) in the context of a large-scale, single subject reproducibility study. A single healthy individual was scanned 11 times with 96 diffusion weighted directions and 10 reference volumes for each of five b-values (1000 &#8211; 3000 s\/mm2) for a total of 5830 volumes. We examined the reproducibility of the number of fibers per voxel, volume fraction, and cross-fiber angles. These results can inform researchers when deciding between HARDI approaches or interpreting findings across studies.<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_1071\" aria-describedby=\"caption-attachment-1071\" style=\"width: 2148px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1071\" src=\"https:\/\/my.vanderbilt.edu\/masi\/wp-content\/uploads\/sites\/2304\n2661\/2017\/02\/Screen-Shot-2017-02-08-at-12.52.44-PM.png\" alt=\"Illustration of the differences in model fit for the gold standard datasets with: (A) PASMRI \u2013 1000 s\/mm2, (B) Q- ball \u2013 1000 s\/mm2, (C) PASMRI \u2013 3000 s\/mm2, and (D) Q-ball \u2013 3000 s\/mm2.\" width=\"2148\" height=\"1130\" \/><figcaption id=\"caption-attachment-1071\" class=\"wp-caption-text\">Illustration of the differences in model fit for the gold standard datasets with: (A) PASMRI \u2013 1000 s\/mm2, (B) Q- ball \u2013 1000 s\/mm2, (C) PASMRI \u2013 3000 s\/mm2, and (D) Q-ball \u2013 3000 s\/mm2.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Vishwesh Nath, Kurt G. Schilling, Justin Blaber, Zhaohua Ding, Adam W. Anderson, Bennett A Landman. \u201cComparison of Multi-Fiber Reproducibility of PAS-MRI and Q-ball With Empirical Multiple b-Value HARDI \u201d In Proceedings of the SPIE Medical Imaging Conference. Orlando, Florida, February 2017. Oral presentation. Full Text: Abstract Crossing fibers are prevalent in human brains and a&#8230;<\/p>\n","protected":false},"author":6322,"featured_media":1071,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/posts\/592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/users\/6322"}],"replies":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/comments?post=592"}],"version-history":[{"count":3,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/posts\/592\/revisions"}],"predecessor-version":[{"id":1072,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/posts\/592\/revisions\/1072"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/media\/1071"}],"wp:attachment":[{"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/media?parent=592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/categories?post=592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/masi\/wp-json\/wp\/v2\/tags?post=592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}