FAST at MACH 20: clinical ultrasound aboard the International Space Station

NASA, Вашингтон, West Virginia, United States
The Journal of trauma (Impact Factor: 2.96). 02/2005; 58(1):35-9. DOI: 10.1097/01.TA.0000145083.47032.78
Source: PubMed


Focused assessment with sonography for trauma (FAST) examination has been proved accurate for diagnosing trauma when performed by nonradiologist physicians. Recent reports have suggested that nonphysicians also may be able to perform the FAST examination reliably. A multipurpose ultrasound system is installed on the International Space Station as a component of the Human Research Facility. Nonphysician crew members aboard the International Space Station receive modest training in hardware operation, sonographic techniques, and remotely guided scanning. This report documents the first FAST examination conducted in space, as part of the sustained effort to maintain the highest possible level of available medical care during long-duration space flight.
An International Space Station crew member with minimal sonography training was remotely guided through a FAST examination by an ultrasound imaging expert from Mission Control Center using private real-time two-way audio and a private space-to-ground video downlink (7.5 frames/second). There was a 2-second satellite delay for both video and audio. To facilitate the real-time telemedical ultrasound examination, identical reference cards showing topologic reference points and hardware controls were available to both the crew member and the ground-based expert.
A FAST examination, including four standard abdominal windows, was completed in approximately 5.5 minutes. Following commands from the Mission Control Center-based expert, the crew member acquired all target images without difficulty. The anatomic content and fidelity of the ultrasound video were excellent and would allow clinical decision making.
It is possible to conduct a remotely guided FAST examination with excellent clinical results and speed, even with a significantly reduced video frame rate and a 2-second communication latency. A wider application of trauma ultrasound applications for remote medicine on earth appears to be possible and warranted.

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    • "Please cite this article as: Levine AR, et al, Tele-intensivists can instruct non-physicians to acquire high-quality ultrasound images, J Crit Care (2015), on ultrasound to enhance the physical examination when diagnosing patients with abdominal pain [13]. Outside of the hospital setting, the National Aeronautics and Space Administration originally designed remote telementored ultrasound (RTMUS) to help diagnose and care for astronauts aboard the space station [14] [15]. Remote telementored ultrasound consists of a geographically separated expert providing real-time guidance and interpreting ultrasound images that are captured and electronically transmitted by an inexperienced ultrasonographer. "
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    ABSTRACT: Intensive care unit telemedicine (tele-ICU) uses audiovisual systems to remotely monitor and manage patients. Intensive care unit ultrasound can augment an otherwise limited bedside evaluation. To date, no studies have utilized tele-ICU technology to assess the quality and clinical use of real-time ultrasound images. We assessed whether tele-intensivists can instruct nonphysicians to obtain high-quality, clinically useful ultrasound images. This prospective pilot evaluated the effectiveness of a brief educational session of nonphysician "ultrasonographers" on their ability to obtain ultrasound images (right internal jugular vein, bilateral lung apices and bases, cardiac subxiphoid view, bladder) with real-time tele-intensivist guidance. All ultrasound screen images were simultaneously photographed with a 2-way camera and saved on the ultrasound machine. The tele-intensivist assessed image quality, and an independent ultrasound expert rated their use in guiding clinical decisions. The intensivist rated the tele-ICU camera images as high quality (70/77, 91%) and suitable for guiding clinical decisions (74/77, 96%). Only bilateral lung apices demonstrated differences in quality and clinical use. All other images were rated noninferior and clinically useful. Tele-intensivists can guide minimally trained nonphysicians to obtain high-quality, clinically useful ultrasound images. For most anatomic sites, tele-ICU images are of similar quality to those acquired directly by ultrasound. Copyright © 2015. Published by Elsevier Inc.
    Journal of Critical Care 06/2015; 30(5). DOI:10.1016/j.jcrc.2015.05.030 · 2.00 Impact Factor
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    • "Remote telementored ultrasound (RTMUS) consists of the use of informatics technologies to facilitate the real-time guidance by a remote expert of an on-site less-experienced ultrasound user to generate and interpret in real-time, meaningful images that guide the care of the patient [3]. This paradigm was initiated and pioneered by investigators from the National Aeronautics and Space Administration as the only practical solution to provide emergency medical imaging onboard the International Space Station [4]. In these studies, novice non-medical users were guided from the ground to generate diagnostic quality images of multiple body regions by ultrasound experts. "
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    ABSTRACT: Point-of-care ultrasound (POC-US) use is increasingly common as equipment costs decrease and availability increases. Despite the utility of POC-US in trained hands, there are many situations wherein patients could benefit from the added safety of POC-US guidance, yet trained users are unavailable. We therefore hypothesized that currently available and economic 'off-the-shelf' technologies could facilitate remote mentoring of a nurse practitioner (NP) to assess for recurrent pneumothoraces (PTXs) after chest tube removal. The simple remote telementored ultrasound system consisted of a handheld ultrasound machine, head-mounted video camera, microphone, and software on a laptop computer. The video output of the handheld ultrasound machine and a macroscopic view of the NP's hands were displayed to a remote trauma surgeon mentor. The mentor instructed the NP on probe position and US machine settings and provided real-time guidance and image interpretation via encrypted video conferencing software using an Internet service provider. Thirteen pleural exams after chest tube removal were conducted. Thirteen patients (26 lung fields) were examined. The remote exam was possible in all cases with good connectivity including one trans-Atlantic interpretation. Compared to the subsequent upright chest radiograph, there were 4 true-positive remotely diagnosed PTXs, 2 false-negative diagnoses, and 20 true-negative diagnoses for 66% sensitivity, 100% specificity, and 92% accuracy for remotely guided chest examination. Remotely guiding a NP to perform thoracic ultrasound examinations after tube thoracostomy removal can be simply and effectively performed over encrypted commercial software using low-cost hardware. As informatics constantly improves, mentored remote examinations may further empower clinical care providers in austere settings.
    Critical ultrasound journal 06/2013; 5(1):5. DOI:10.1186/2036-7902-5-5
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    • "ese efforts were largely initiated by the National Aeronautics and Space Administration (NASA) to allow nonphysician astronauts onboard the International Space Station to conduct ultrasound examinations with realtime guidance from terrestrial experts. us, in the absence of any other diagnostic imaging resources, accurate diagnosis can still be made for most of the medical conditions that might arise in low Earth's orbit [13] [14] [15] [16]. While these initial efforts were supported by all the technical infrastructure of NASA, advances in connectivity, accessibility, and availability of hand-held computing and communication devices are making real-time mentored tele-ultrasound (RTMTUS) a service that can be brought to R/UR settings in a back pack or even a pocket and potentially used by any nontraditional care provider on any patient [17] [18] [19]. "
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    01/2013; 2013:986160. DOI:10.1155/2013/986160
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