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 hp
Sign In
Advertise with Us
GLOBETECH PUBLISHING LLC

Carestream Health

Provides medical and dental imaging systems and healthcare IT solutions and x-ray film and digital x-ray products for... read more Featured Products: More products

Download Mobile App




Noise Cancellation Technology Improves X-ray Image Quality

By MedImaging International staff writers
Posted on 26 May 2021
Image: The same image with and without SNC (Photo courtesy of Carestream)
Image: The same image with and without SNC (Photo courtesy of Carestream)
Artificial intelligence (AI)-based technology can reduce image noise by two to four times in flat image areas.

Carestream (Rochester, NY, USA) Smart Noise Cancellation (SNC) software is designed to perform digital enhancement of an X-ray radiographic image processed within the company’s Eclipse-powered ImageView software. The optional feature supports all Carestream DRX computed radiography (CR) and direct radiography (DR) detectors. The SNC module itself consists of a convolutional neural network (CNN) trained on clinical images with added simulated noise to represent reduced signal-to-noise (SNR) acquisitions.

The Smart Noise Cancellation operation passes the acquired preprocessed image through the trained CNN based on a U-Net architecture to generate a 2D map of the estimated noise found in the image (the Noise Field) that removes grid frequencies and direct exposure and collimator blades. The enhanced image contains the same image quality attributes (brightness, latitude, and overall contrast), preserves high-frequency sharpness, and improves contrast detail. The images also show no substantial residual edge information within the regions of interest.

Objective testing demonstrated that SNC processing enables a 2x–4x noise reduction in flat image areas, preserves high frequency sharpness, and improves contrast detail. Additionally, a blind clinical reader study using board-certified radiologists found that 89.5% of all study ratings showed a slight to strong preference for SNC-processed images. In addition, 64% of the diagnostic quality ratings improved--based on the RadLex rating scale--and 56% of these ratings improved from “limited” or “diagnostic” to “exemplary.”

“Carestream is a leader in using AI for noise cancellation with X-ray images. Our team of imaging scientists has been able to separate image noise from sharpness and contrast using AI-based algorithms that result in remarkable image quality,” said Jill Hamman, worldwide marketing manager of Global X-ray solutions at Carestream. “This technology provides improved anatomical clarity, preservation of fine detail and better contrast-to-noise ratio for images acquired at a broad range of exposures, which can help improve diagnostic confidence and alleviate physician fatigue.”

Noise is often an undesirable by-product of image capture, and can often obscure critical anatomical data. However, traditional noise reduction introduces blurring, which degrades image sharpness and might remove important anatomical information. Conversely, the more an image is sharpened, the more noise may be enhanced.



New
Mobile X-Ray System
K4W
Half Apron
Demi
Biopsy Software
Affirm® Contrast
Mammography System (Analog)
MAM VENUS

Channels

Nuclear Medicine

view channel
Image: Perovskite crystal boules are grown in carefully controlled conditions from the melt (Photo courtesy of Mercouri Kanatzidis/Northwestern University)

New Camera Sees Inside Human Body for Enhanced Scanning and Diagnosis

Nuclear medicine scans like single-photon emission computed tomography (SPECT) allow doctors to observe heart function, track blood flow, and detect hidden diseases. However, current detectors are either... Read more

General/Advanced Imaging

view channel
Image: The Angio-CT solution integrates the latest advances in interventional imaging (Photo courtesy of Canon Medical)

Cutting-Edge Angio-CT Solution Offers New Therapeutic Possibilities

Maintaining accuracy and safety in interventional radiology is a constant challenge, especially as complex procedures require both high precision and efficiency. Traditional setups often involve multiple... Read more

Imaging IT

view channel
Image: The new Medical Imaging Suite makes healthcare imaging data more accessible, interoperable and useful (Photo courtesy of Google Cloud)

New Google Cloud Medical Imaging Suite Makes Imaging Healthcare Data More Accessible

Medical imaging is a critical tool used to diagnose patients, and there are billions of medical images scanned globally each year. Imaging data accounts for about 90% of all healthcare data1 and, until... Read more
Copyright © 2000-2025 Globetech Media. All rights reserved.