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Using the CaptureProof technology did require patients to be assisted by what the clinicians describe as a care partner (e.g., a spouse or significant other) who could film the patient's movements during CaptureProof sessions.
One issue that came up during the trial was getting patients and care partners to capture the video from the proper angle. "If you're filming too high or too low, you're not seeing the fingers move, or if the leg is actually rising or staying in the same position," Hellmers says.
This same technology is lending itself to a variety of other uses, such as documenting the progression of a healing burn wound, or recording the progress of a patient's rehabilitation exercises, she notes.
CaptureProof's technology allows more flexibility than traditional Parkinson's evaluations in that clinician and patient do not have to be on the same schedule, Hellmers says.
In addition, such videos can eventually become part of the medical record, and permit direct viewing of patient videos performed over a period of time—another way to spot trends that goes beyond written observations, she adds.
In the case of Parkinson's patients, the video can also distinguish between tremors (rhythmic movements) and other involuntary movements.
Having access to this level of detail can affect the clinician's medication plan for the patient.
Weill Cornell is now preparing to conduct a second round of pilot testing. In this round, Weill Cornell clinicians plan to add additional movement exams, as well as offer a video upload section where participants can record videos of activities of daily living that are proving to be difficult, such as buttoning a button or playing the piano.
The devices used cost between $199 and $229 per phone, Hellmers says. The study utilized existing clinical and research staff at Weill Cornell and did not require any additional staffing resources.
The round-two start date is currently subject to the approval of an Institutional Review Board. Beyond that study, Hellmers envisions a day when this video analysis could be integrated into the standard of care for a variety of diseases.