We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App




Events

ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.
16 Feb 2023 - 18 Feb 2023

Novel App Screens for Anemia without Blood Test

By HospiMedica International staff writers
Posted on 27 Sep 2016
Print article
Image: The HemaApp measures hemoglobin levels by illuminating a finger with a smartphone’s camera flash (Photo courtesy of Dennis Wise / UW).
Image: The HemaApp measures hemoglobin levels by illuminating a finger with a smartphone’s camera flash (Photo courtesy of Dennis Wise / UW).
Hemoglobin levels and anemia can be construed non-invasively by illuminating a patient’s finger with a smartphone camera flash, according to a new study.

The HemaApp smartphone application, under development at the University of Washington (UW; Seattle, USA), shines light through a patient’s finger at different wavelengths, as well as infrared (IR) energy, to create a series of videos. By analyzing color absorption and reflectance across the different wavelengths, it detects concentrations of hemoglobin and other blood components, such as plasma. Processing algorithms also use pulse to distinguish between the properties of the patient’s blood and the physical characteristics of the finger.

The researchers tested the app under three different scenarios: using the smartphone camera’s flash alone, in combination with a common incandescent light bulb providing ambient light, and with a low-cost light emitting diode (LED) lighting attachment. The additional illumination sources are used to take advantage of properties found in other wavelengths of the electromagnetic spectrum that present useful absorption properties, but that are not currently found on all smartphone cameras.

In the initial trials, the correlation between HemaApp and the patient’s hemoglobin count on a complete blood count (CBC) test using the smartphone camera alone was 69%, with a common incandescent light bulb the correlation was 74%, and when used with the LED attachment, the correlation was 82%. For comparison, the Masimo (Irvine, CA, USA) Pronto showed a correlation of 81% to the CBC. The study was presented at the International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp), held during September 2016 in Heidelberg (Germany).

“New phones are beginning to have more advanced infrared and multi-color LED capabilities; but what we found is that even if your phone doesn’t have all that, you can put your finger near an external light source like a common light bulb and boost the accuracy rates,” said senior author Professor Shwetak Patel, PhD, of the department of computer science & engineering and electrical engineering. “We’re just starting to scratch the surface here. There’s a lot that we want to tackle in using phones for non-invasively screening disease.”

Related Links:
University of Washington
Masimo

Gold Supplier
Disposable Protective Suit For Medical Use
Disposable Protective Suit For Medical Use
New
Double-Door Pass-Through Autoclave
150L - 700L Double-Door / Pass-Through
New
Portable Medical Air Compressor
EasyComp
New
Analgesic Gas Delivery System
O-Two Equinox Advantage

Print article

Channels

AI

view channel
Image: MyoVista Wavelet technology utilizes AI for early detection of heart disease (Photo courtesy of Heart Test Laboratories)

Novel ECG Technology Utilizes AI for Early Detection of Heart Disease

Cardiovascular disease is responsible for 17.9 million deaths every year, or about 32% of all deaths worldwide. Every week, millions of electrocardiographs (ECGs) are performed across the world, making... Read more

Surgical Techniques

view channel
Image: The Vena BDAC provides a superior solution to distal navigation (Photo courtesy of Vena Medical)

Category-Defining Balloon Distal Access Catheter Allows Surgeons to Get Much Closer to Blood Clots

Thrombectomy is a minimally invasive procedure for removing a blood clot and has now become standard of care treatment for patients with an acute ischemic stroke (AIS) secondary to a Large Vessel Occlusion (LVO).... Read more

Health IT

view channel
Image: Using digital data can improve health outcomes (Photo courtesy of Unsplash)

Electronic Health Records May Be Key to Improving Patient Care, Study Finds

When a patient gets transferred from a hospital to a nearby specialist or rehabilitation facility, it is often difficult for personnel at the new facility to access the patient’s electronic health records... Read more

Point of Care

view channel
Image: Steripath improves the diagnostic accuracy and timeliness of sepsis test results (Photo courtesy of Magnolia)

All-in-One Device Reduces False-Positive Diagnostic Test Results for Bloodstream Infections

Blood cultures are considered the gold standard diagnostic test for the detection of blood stream infections, such as sepsis. However, positive blood culture results can be frequently wrong, and about... Read more

Business

view channel
Image: The global patient positioning systems market is projected to reach USD 1.7 billion by 2027 (Photo courtesy of Pexels)

Global Patient Positioning Systems Market Driven by Increasing Chronic Diseases

The global patient positioning systems market is projected to grow at a CAGR of 4% from USD 1.4 billion in 2022 to USD 1.7 billion by 2027, driven by increasing technological advancements in medical devices,... Read more
Copyright © 2000-2023 Globetech Media. All rights reserved.