BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Australia/Brisbane BEGIN:STANDARD DTSTART:19920301T020000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:AEST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20220526T093207Z UID:35B5B6B3-15E5-4A61-A2CB-1D7BFEC2A6D3 DTSTART;TZID=Australia/Brisbane:20220526T180000 DTEND;TZID=Australia/Brisbane:20220526T190000 DESCRIPTION:Colorectal cancer (CRC) is the third most commonly diagnosed ca ncer\, and the fourth leading cause of cancer death in the world. Colonosc opy is currently the most effective method for colorectal cancer diagnosis \, and the only tool capable of removing polyps (CRC precursors)\, but it still misses 22% of polyps due to optical camera field of view limitation and operator dependency.\n\nMiWEndo Solutions is developing the first micr owave colonoscopy system composed of a ring-shaped accessory\, attachable to the colonoscope tip with a switchable antenna array\, and an external u nit for signal generation and processing. This device scans the full perim eter of the colon during the colonoscopy exploration and generates an acou stic signal when a polyp is detected to warn the physician.\n\nThis presen tation will first describe the microwave system for colonoscopy contextual ized in the state of the art of the existing microwave systems for medical applications.\n\nMicrowave imaging applied to endoscopy is very different from previously studied applications of medical microwave imaging. As an advantage\, there is no requirement to penetrate the tissues\, as polyps a re superficial lesions. Nevertheless\, many challenges appear and will be described in the presentation: the size restrictions that limit the number of antennas and its separation leading to increased mutual coupling. Also \, the antennas themselves must be electrically small\, limiting the bandw idth\, and the unusual configuration\, with the antennas inside the elemen t to be scanned\, imposes restrictions to the imaging algorithms that can be used. One of the most critical challenges is that the distance from the imaging region to the antennas is unknown and constantly changes. Hence\, calibration techniques must be investigated to remove this uncertainty fr om the measured scattered fields. Apart from these\, real time performance is needed to notify the doctor of the presence of a polyp at the same tim e as the endoscope tip passes through the lesion. More practical challenge s also apply such as the use of biocompatible external materials\, single use\, low cost\, inter-compatibility with colonoscopy and usability requir ements. Finally\, the overall development is subjected to strong regulator y framework and preclinical validation to be able to use the device in hum ans with safety and good performance.\n\nSpeaker(s): Dr Marta Guardiola\, \n\nVirtual: https://events.vtools.ieee.org/m/313393 LOCATION:Virtual: https://events.vtools.ieee.org/m/313393 ORGANIZER:h.espinosa@griffith.edu.au SEQUENCE:12 SUMMARY:Novel Applications of microwave imaging: colorectal cancer early de tection. Challenges in algorithm and device development\, from the idea to the clinical trials URL;VALUE=URI:https://events.vtools.ieee.org/m/313393 X-ALT-DESC:Description: <br /><p>Colorectal cancer (CRC) is the third most commonly diagnosed cancer\, and the fourth leading cause of cancer death i n the world. Colonoscopy is currently the most effective method for colore ctal cancer diagnosis\, and the only tool capable of removing polyps (CRC precursors)\, but it still misses 22% of polyps due to optical camera fiel d of view limitation and operator dependency.</p>\n<p>MiWEndo Solutions is developing the first microwave colonoscopy system composed of a ring-shap ed accessory\, attachable to the colonoscope tip with a switchable antenna array\, and an external unit for signal generation and processing. This d evice scans the full perimeter of the colon during the colonoscopy explora tion and generates an acoustic signal when a polyp is detected to warn the physician.</p>\n<p>This presentation will first describe the microwave sy stem for colonoscopy contextualized in the state of the art of the existin g microwave systems for medical applications.</p>\n<p>Microwave imaging ap plied to endoscopy is very different from previously studied applications of medical microwave imaging. As an advantage\, there is no requirement to penetrate the tissues\, as polyps are superficial lesions. Nevertheless\, many challenges appear and will be described in the presentation: the siz e restrictions that limit the number of antennas and its separation leadin g to increased mutual coupling. Also\, the antennas themselves must be ele ctrically small\, limiting the bandwidth\, and the unusual configuration\, with the antennas inside the element to be scanned\, imposes restrictions to the imaging algorithms that can be used. One of the most critical chal lenges is that the distance from the imaging region to the antennas is unk nown and constantly changes. Hence\, calibration techniques must be invest igated to remove this uncertainty from the measured scattered fields. Apar t from these\, real time performance is needed to notify the doctor of the presence of a polyp at the same time as the endoscope tip passes through the lesion. More practical challenges also apply such as the use of biocom patible external materials\, single use\, low cost\, inter-compatibility w ith colonoscopy and usability requirements. Finally\, the overall developm ent is subjected to strong regulatory framework and preclinical validation to be able to use the device in humans with safety and good performance.< /p> END:VEVENT END:VCALENDAR