Article Instance

HTTP 200 OK
Allow: GET
Content-Type: application/json
Vary: Accept

{
    "pk": 17822,
    "title": "Diagnostic Accuracy of a Handheld Ultrasound vs a Cart-based Model: A Randomized Clinical Trial",
    "subtitle": null,
    "abstract": "<b>Introduction:</b> Numerous studies have demonstrated the accuracy of point-of-care ultrasound (POCUS). Portable, handheld devices have expanded the clinical scope of POCUS at a fraction of the cost of traditional, cart-based models. There is a paucity of data assessing the diagnostic accuracy of portable devices. Our objective in this study was to compare the diagnostic accuracy of a portable device with a cart-based model.<p></p><p><b><b>Methods:</b></b> This was an institutional review board-approved, observational, prospective, randomized clinical trial (NCT05196776) of a convenience sample of adult patients who presented to a university-based health system. Patients who required a cardiac, lung, renal, aorta, or biliary POCUS were randomized to a portable device or to a cart-based model. We hypothesized that the cart-based model would have a 90% diagnostic accuracy vs 70% for the handheld device. To detect a 20% difference, the sample size was calculated to be 98, with 49 patients randomized to each arm. We used standard 2x2 tables to calculate test characteristics with 95% confidence intervals (CI).</p><p></p><p><b><b><b>Results:</b> </b></b>A total of 110 patients were enrolled, with 56 patients randomized to the cart-based model and 54 to the handheld device. The sensitivity, specificity, and diagnostic accuracy of the cart-based vs handheld were 77.8% (40–97.2) vs 92.9% (66.1–99.8), 91.5% (79.6–97.6) vs 92.3% (79.1–98.4%), and 89.3% (78.1–96) vs 92.5% (81.8–97.9), respectively.</p><p></p><p><b><b><b>Conclusion:</b> </b></b>The diagnostic accuracy of a portable, handheld device is similar to that of a cart-based model.</p>",
    "language": null,
    "license": {
        "name": "Creative Commons Attribution 4.0",
        "short_name": "CC BY 4.0",
        "text": "Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\r\n\r\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.",
        "url": "https://creativecommons.org/licenses/by/4.0"
    },
    "keywords": [
        {
            "word": "point-of-care ultrasound"
        },
        {
            "word": "diagnostic accuracy"
        },
        {
            "word": "Handheld Ultrasound"
        }
    ],
    "section": "Ultrasound",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/5rh0101n",
    "frozenauthors": [
        {
            "first_name": "Ryan",
            "middle_name": "C.",
            "last_name": "Gibbons",
            "name_suffix": "",
            "institution": "Lewis Katz School of Medicine at Temple University, Department of Emergency Medicine, Philadelphia, Pennsylvania",
            "department": "None"
        },
        {
            "first_name": "Daniel",
            "middle_name": "J.",
            "last_name": "Jaeger",
            "name_suffix": "",
            "institution": "Lewis Katz School of Medicine at Temple University, Department of Emergency Medicine, Philadelphia, Pennsylvania",
            "department": "None"
        },
        {
            "first_name": "Matthew",
            "middle_name": "",
            "last_name": "Berger",
            "name_suffix": "",
            "institution": "Capital Health, Department of Emergency Medicine, Pennington, New Jersey",
            "department": ""
        },
        {
            "first_name": "Mark",
            "middle_name": "",
            "last_name": "Magee",
            "name_suffix": "",
            "institution": "Lewis Katz School of Medicine at Temple University, Department of Emergency Medicine, Philadelphia, Pennsylvania",
            "department": ""
        },
        {
            "first_name": "Claire",
            "middle_name": "",
            "last_name": "Shaffer",
            "name_suffix": "",
            "institution": "University of Pittsburgh Medical Center Harrisburg, Department of Emergency Medicine, Harrisburg, Pennsylvania",
            "department": "None"
        },
        {
            "first_name": "Thomas",
            "middle_name": "G.",
            "last_name": "Costantino",
            "name_suffix": "",
            "institution": "Lewis Katz School of Medicine at Temple University, Department of Emergency Medicine, Philadelphia, Pennsylvania",
            "department": "None"
        }
    ],
    "date_submitted": "2023-01-23T04:58:27+05:30",
    "date_accepted": "2023-01-23T04:58:27+05:30",
    "date_published": "2024-02-09T19:30:00+05:30",
    "render_galley": {
        "label": "Final Article",
        "type": "pdf",
        "path": "https://journalpub.escholarship.org/westjem/article/17822/galley/9599/download/"
    },
    "galleys": [
        {
            "label": "Final Article",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/westjem/article/17822/galley/9599/download/"
        }
    ]
}