{"id":19339,"date":"2023-12-06T15:53:34","date_gmt":"2023-12-06T20:53:34","guid":{"rendered":"https:\/\/engineering.jhu.edu\/magazine-archive\/?p=19339"},"modified":"2023-12-06T15:53:34","modified_gmt":"2023-12-06T20:53:34","slug":"slam-dunk-for-safer-brain-surgery","status":"publish","type":"post","link":"https:\/\/engineering.jhu.edu\/magazine-archive\/2023\/12\/slam-dunk-for-safer-brain-surgery\/","title":{"rendered":"SLAM Dunk for Safer Brain Surgery"},"content":{"rendered":"<a href=\"https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-19341 size-large\" src=\"https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90-1024x684.jpeg\" alt=\"A photo of a model showing a procedure on a glass head.\" width=\"1024\" height=\"684\" srcset=\"https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90-1024x684.jpeg 1024w, https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90-300x200.jpeg 300w, https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90-768x513.jpeg 768w, https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90.jpeg 1531w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n<p>Accessing the brain for neurosurgery involves drilling and cutting that can cause deep-brain anatomy to shift or become distorted. This can create discrepancies between preoperative imaging and the actual state of the brain during a procedure.<\/p>\n<p>Current surgical navigation systems may assist in providing live guidance, but typically use pins and clamps to hold a patient\u2019s head firmly in place, which carries the risk of complications and can prolong recovery time.<\/p>\n<p>A team of Hopkins researchers at the <a href=\"https:\/\/istar.jhu.edu\/\">Imaging for Surgery, Therapy, and Radiology (I-STAR) Labs<\/a> is working on a less invasive solution that doesn\u2019t require additional equipment or expose patients to the extra radiation or long scan times typically associated with live imaging. They have partnered with medical device company Medtronic and the <a href=\"https:\/\/www.nih.gov\/\">National Institutes of Health<\/a> to develop a real-time guidance system that uses an endoscope, which is already commonly employed in neurosurgeries. Their work is described in <a href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=8253409\">IEEE Transactions on Medical Robotics and Bionics<\/a>.<\/p>\n<p>\u201cOur study demonstrates the superiority of this real-time 3D navigation method over current visualization techniques,\u201d says primary author Prasad Vagdargi, a doctoral candidate at the I-STAR Labs who is advised by <a href=\"https:\/\/www.bme.jhu.edu\/people\/faculty\/jeffrey-h-siewerdsen\/\">Jeffrey Siewerdsen<\/a>, John C. Malone Professor of <a href=\"https:\/\/www.bme.jhu.edu\/\">biomedical engineering<\/a> with a joint appointment in <a href=\"https:\/\/www.cs.jhu.edu\/\">computer science<\/a>, and <a href=\"https:\/\/engineering.jhu.edu\/faculty\/gregory-hager\/\">Gregory Hager<\/a>, the Mandell Bellmore Professor of Computer Science.<\/p>\n<p>The team\u2019s surgical guidance method builds on an advanced computer vision technique called simultaneous localization and mapping, or SLAM, which has also been used for navigation in self-driving cars. After calibrating an endoscopic video feed, the team\u2019s SLAM algorithm tracks important visual details in each frame and uses those details to determine where the endoscope camera is and how it\u2019s positioned. The algorithm then transforms those details into a 3D model of the object: in this case, the inside of a patient\u2019s skull. This model is then overlaid with the real-world video feed to visualize targeted structures on-screen in real time.<\/p>\n<p>\u201cThink of it as a dynamic 3D map of a patient\u2019s brain that you can use to track and match deep brain deformation with preoperative imaging,\u201d Vagdargi says. \u201cCombining this map with an augmented reality overlay on the endoscopic video will help surgeons to visualize targets and critical anatomy well beyond the surface of the brain.\u201d<\/p>\n<p>The researchers have coined the term \u201caugmented endoscopy\u201d for this method of live surgical visualization. Through a series of preclinical experiments, they demonstrated that it is more than 16 times faster than previous computer vision techniques while still maintaining submillimeter accuracy.<\/p>\n<p>The team predicts that the improved accuracy afforded by augmented endoscopy may lead to reduced complications, shorter operation times, and therefore increased surgical efficiency\u2014not only in neurosurgeries but also in other endoscopic procedures across medical disciplines.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A team of Hopkins researchers at the Imaging for Surgery, Therapy, and Radiology (I-STAR) Labs is working on a less invasive solution that doesn\u2019t require additional equipment or expose patients to the extra radiation or long scan times typically associated with live imaging.<\/p>\n","protected":false},"author":29,"featured_media":19341,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-19339","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-impact","issue-winter-2024"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SLAM Dunk for Safer Brain Surgery - JHU Engineering Magazine<\/title>\n<meta name=\"description\" content=\"Revolutionizing neurosurgery, a team at Hopkins&#039; I-STAR Labs collaborates with Medtronic and the NIH to develop a groundbreaking real-time guidance system. Unlike traditional methods, their &quot;augmented endoscopy&quot; relies on a 3D map generated through simultaneous localization and mapping (SLAM) technology, offering superior accuracy with reduced complications and shorter operation times.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/engineering.jhu.edu\/magazine-archive\/2023\/12\/slam-dunk-for-safer-brain-surgery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SLAM Dunk for Safer Brain Surgery - JHU Engineering Magazine\" \/>\n<meta property=\"og:description\" content=\"Revolutionizing neurosurgery, a team at Hopkins&#039; I-STAR Labs collaborates with Medtronic and the NIH to develop a groundbreaking real-time guidance system. Unlike traditional methods, their &quot;augmented endoscopy&quot; relies on a 3D map generated through simultaneous localization and mapping (SLAM) technology, offering superior accuracy with reduced complications and shorter operation times.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/engineering.jhu.edu\/magazine-archive\/2023\/12\/slam-dunk-for-safer-brain-surgery\/\" \/>\n<meta property=\"og:site_name\" content=\"JHU Engineering Magazine\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-06T20:53:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/engineering.jhu.edu\/magazine-archive\/wp-content\/uploads\/2023\/11\/Transventricular90.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1531\" \/>\n\t<meta property=\"og:image:height\" content=\"1022\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Deboreah Ross\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Deboreah Ross\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/\"},\"author\":{\"name\":\"Deboreah Ross\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/#\\\/schema\\\/person\\\/37c999ce2d860a416eb52a3526c58ef6\"},\"headline\":\"SLAM Dunk for Safer Brain Surgery\",\"datePublished\":\"2023-12-06T20:53:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/\"},\"wordCount\":461,\"image\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Transventricular90.jpeg\",\"articleSection\":[\"Impact\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/\",\"url\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/\",\"name\":\"SLAM Dunk for Safer Brain Surgery - JHU Engineering Magazine\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/2023\\\/12\\\/slam-dunk-for-safer-brain-surgery\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Transventricular90.jpeg\",\"datePublished\":\"2023-12-06T20:53:34+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/magazine-archive\\\/#\\\/schema\\\/person\\\/37c999ce2d860a416eb52a3526c58ef6\"},\"description\":\"Revolutionizing neurosurgery, a team at Hopkins' I-STAR Labs collaborates with Medtronic and the NIH to develop a groundbreaking real-time guidance system. 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