{"689007":{"#nid":"689007","#data":{"type":"news","title":"New Mobile App Turns Phones into At-Home Fetal Heart Monitors","body":[{"value":"\u003Cdiv\u003E\u003Cp\u003EA new mobile app will soon put the ability to monitor a baby\u2019s prenatal heartbeat in the hands of pregnant women who may worry about their baby\u2019s health in between doctor\u2019s visits.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EStudies show that one in five pregnant women experiences \u003Ca href=\u0022https:\/\/theconversation.com\/perinatal-anxiety-one-in-five-women-experience-it-but-many-still-suffer-alone-before-or-after-childbirth-133667\u0022 rel=\u0022noreferrer noopener\u0022 target=\u0022_blank\u0022\u003Eperinatal anxiety\u003C\/a\u003E, which is characterized by intense negative thoughts about their pregnancy.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EDopFone turns any smartphone speaker into a Doppler radar by emitting a low-pitched ultrasound and detecting reflected signals of abdominal surface vibrations caused by a fetal heartbeat.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/www.alexandertadams.com\/\u0022 rel=\u0022noreferrer noopener\u0022 target=\u0022_blank\u0022\u003E\u003Cstrong\u003EAlex Adams\u003C\/strong\u003E\u003C\/a\u003E, an assistant professor in Georgia Tech\u2019s School of Interactive Computing, said he came up with the idea for DopFone as he and his wife, Elise, experienced two miscarriages. At the time, she couldn\u2019t reliably measure the fetal heart rate with a standard fetal Doppler monitor.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EThose experiences exposed gaps in the maternal healthcare process.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cThere are a lot of great devices in hospitals and clinics, but there\u2019s not much outside of those venues, even for high-risk pregnancies,\u201d Adams said. \u201cThis is about filling the gaps between checkups.\u201d\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/www.poojitagarg.com\/\u0022 rel=\u0022noreferrer noopener\u0022 target=\u0022_blank\u0022\u003E\u003Cstrong\u003EPoojita Garg\u003C\/strong\u003E\u003C\/a\u003E joined Adams to work on DopFone while completing her master\u2019s degree at Georgia Tech. She is now pursuing her Ph.D. at the University of Washington and is co-advised by Professor Swetak Patel, who earned his Ph.D. from Georgia Tech in 2008.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EGarg is working with the University of Washington School of Medicine to conduct DopFone\u2019s first clinical trials.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EGarg tested DopFone on 23 patients and achieved a plus-minus of 4.9 beats per minute, well within the clinical standard range of eight beats per minute for reliable fetal heart rate measurement.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EAdams said it measured within two beats per minute in most cases, with an error rate of less than one percent.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EAbout one million pregnancies in the U.S. end in miscarriage, \u003Ca href=\u0022https:\/\/medicine.yale.edu\/news-article\/dr-harvey-kliman-study-finds-the-placenta-holds-answers-to-many-unexplained-pregnancy-losses\/\u0022 rel=\u0022noreferrer noopener\u0022 target=\u0022_blank\u0022\u003Eaccording to a study from the Yale School of Medicine\u003C\/a\u003E, and doctors know little about what causes them. Adams said that number is probably higher because many go unreported.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EAdams and Garg said it\u2019s unclear whether the innovation could reduce the number of miscarriages. However, consistent fetal heart rate data collection outside of the doctor\u2019s office could provide a better idea of what happens leading up to a miscarriage.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cFrom there, we can take preventative action,\u201d Adams said. \u201cIf nothing else, we can give a sense of comfort to those who may be worried.\u201d\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EExpanding Access\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EWhile couples can purchase portable fetal heart rate monitors, Adams and Garg see DopFone as a low-cost alternative for those who live in areas with limited or inaccessible healthcare systems.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cThere\u2019s a lot of potential for using it in what doctors like to call maternity deserts,\u201d Garg said. \u201cThese are areas where a pregnant person, at the time of delivery, would have to travel long distances to reach a hospital. This technology will be useful globally in underdeveloped areas of the world.\u201d\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EThe researchers also mentioned that external add-ons and attachments aren\u2019t part of their design goals. They prefer to rely on the phone\u2019s built-in features to keep the technology accessible.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cThe real value is that 96% of America already has the technology in their pocket, along with 60% of the world\u2019s population,\u201d Adams said. \u201cHalf of the battle is having the right tools. The more we can get from what\u2019s already in the phone, the more we can guarantee people have access to it.\u201d\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003ENot a Substitute\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003ESome patients may feel a constant need to check their unborn child\u2019s heart rate, and Garg acknowledged that a tool like DopFone could increase that anxiety. She and Adams said a future version of the app will tell the parent if the heart rate is within a healthy range.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cThere\u2019s a lot of tradeoffs between a tool that could provide reassurance or create anxiety,\u201d she said. \u201cWe want the use of this tool to be recommended by a doctor and for doctors and their care teams to be kept in the loop.\u201d\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EShe also said DopFone is not meant to replace anything that is done in a clinic.\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u201cThere are devices that make the whole process possible at home, but this is something that should be done in a clinic, so that\u2019s the line we want to draw,\u201d she said.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDopFone uses smartphone speakers to emit a low-pitched ultrasound that detects reflected signals of abdominal surface vibrations caused by fetal cardiac activity.\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/www.alexandertadams.com\/\u0022\u003E\u003Cstrong\u003EAlex Adams\u003C\/strong\u003E\u003C\/a\u003E, an assistant professor in Georgia Tech\u2019s School of Interactive Computing, said he came up with the idea for DopFone as he and his wife, Elise, suffered through two miscarriages.\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/www.poojitagarg.com\/\u0022\u003E\u003Cstrong\u003EPoojita Garg\u003C\/strong\u003E\u003C\/a\u003E joined Adams to work on DopFone while completing her master\u2019s at Georgia Tech. She is now pursuing her Ph.D. at the University of Washington and is co-advised by Professor Swetak Patel, who earned his Ph.D. from Georgia Tech in 2008.\u003C\/p\u003E\u003Cp\u003EGarg is working with the University of Washington School of Medicine to conduct DopFone\u2019s first clinical trials.\u003C\/p\u003E\u003Cp\u003EGarg tested DopFone on 23 patients and achieved a plus-minus of 4.9 beats per minute, well within the clinical standard for reliable fetal heart rate measurement of plus-minus 8 beats per minute.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"A new app will allow pregnant women to conduct an ultrasound and receive an accurate fetal heart rate from their mobile phones."}],"uid":"36530","created_gmt":"2026-03-18 13:23:19","changed_gmt":"2026-03-23 13:16:06","author":"Nathan Deen","boilerplate_text":"","field_publication":"","field_article_url":"","location":"Atlanta, GA","dateline":{"date":"2026-03-18T00:00:00-04:00","iso_date":"2026-03-18T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"hg_media":{"679666":{"id":"679666","type":"image","title":"DopFone-PR-Photo-with-blur.jpg","body":null,"created":"1773840209","gmt_created":"2026-03-18 13:23:29","changed":"1773840209","gmt_changed":"2026-03-18 13:23:29","alt":"Woman holds mobile phone to the belly of a pregnant woman","file":{"fid":"263850","name":"DopFone-PR-Photo-with-blur.jpg","image_path":"\/sites\/default\/files\/2026\/03\/18\/DopFone-PR-Photo-with-blur.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/18\/DopFone-PR-Photo-with-blur.jpg","mime":"image\/jpeg","size":113510,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/18\/DopFone-PR-Photo-with-blur.jpg?itok=A5qhfUr7"}}},"media_ids":["679666"],"groups":[{"id":"47223","name":"College of Computing"},{"id":"1188","name":"Research Horizons"},{"id":"50876","name":"School of Interactive Computing"}],"categories":[{"id":"153","name":"Computer Science\/Information Technology and Security"}],"keywords":[{"id":"187915","name":"go-researchnews"},{"id":"9153","name":"Research Horizons"},{"id":"181431","name":"maternal"},{"id":"7677","name":"ultrasound"},{"id":"34741","name":"mobile app"},{"id":"29561","name":"pregnancy"},{"id":"190383","name":"pregnant women"},{"id":"168908","name":"smartphone"},{"id":"188420","name":"babies"},{"id":"178046","name":"fetal monitoring"}],"core_research_areas":[{"id":"39501","name":"People and Technology"}],"news_room_topics":[{"id":"71891","name":"Health and Medicine"}],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}