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

Ultralow-Dose Chest CT Outperforms X-Ray in Emergency Department Patients

By MedImaging International staff writers
Posted on 25 Oct 2023
Print article
Image: A study has found ultralow-dose chest CT to be superior to X-ray in emergencies (Photo courtesy of 123RF)
Image: A study has found ultralow-dose chest CT to be superior to X-ray in emergencies (Photo courtesy of 123RF)

Chest X-rays are a commonly used primary diagnostic tool for various medical conditions, offering benefits like easy access, quick results, and minimal radiation exposure. However, they don't score high in terms of sensitivity and specificity. Chest CT scans offer better diagnostic capabilities but come with drawbacks like higher radiation, more expense, and longer time for reports. Advances in CT technology, however, may be turning the tide. Now, a new study has found that ultralow-dose chest CT has twice the detection rate for main diagnoses compared to chest X-rays in patients who visit the emergency room for non-traumatic issues. The finding suggests that CT scans could be used more commonly as an assessment tool for these patients.

Traditionally, non-contrast-enhanced chest CTs are carried out at two key radiation dose levels: standard-dose and low-dose CT. But the latest improvements in CT technology, such as new detectors and reconstruction algorithms, have dramatically reduced the necessary radiation exposure for chest CTs. It's now nearly equivalent to that of a chest X-ray. As a result, ultralow-dose chest CT is emerging as a viable alternative to standard chest X-rays for patients with low prevalence conditions. Numerous studies have already indicated the effectiveness of using chest CTs with radiation doses up to that of three chest X-rays.

Researchers from the Medical University of Vienna (Vienna, Austria) investigated how ultralow-dose chest CT might offer advantages over chest X-rays for emergency room patients with non-traumatic issues. The study involved 294 participants who visited the emergency room between May and November of 2019. All subjects received both a chest X-ray and an ultralow-dose CT scan. The study was segmented into two groups based on these diagnostic methods. The research showed that ultralow-dose chest CT provided over double the rate of main diagnoses compared to chest X-rays. While this indicates that ultralow-dose CT could serve as a primary imaging method for non-traumatic emergency room patients, more research is essential. This is particularly true considering that CT scans are more expensive and take longer to report, the researchers noted.

"Our findings support the future use of ultralow-dose CT as one of the primary chest-imaging modalities in low-prevalence non-traumatic emergency department patients," wrote the researchers. "Due to higher expected costs and resource requirements, further economic analyses will be necessary to determine the optimal spectrum of indications, rationale, and economic potential of a broader substitution of ultralow-dose CT for chest X-ray as a primary imaging modality of the chest."

Related Links:
Medical University of Vienna 

Gold Supplier
Conductive Gel
Gold Supplier
Ultrasound System
Mammography Diagnostic Station
Mammo Module
Cart-Based Ultrasound System
SonoMax 9

Print article



view channel
Image: Intelligent NR provides high-quality diagnostic images containing significantly less grainy noise (Photo courtesy of Canon)

AI-Driven DR System Produces Higher Quality Images While Limiting Radiation Doses in Pediatric Patients

Ionizing radiation is a fundamental element in producing diagnostic X-rays, yet it's widely acknowledged for its cancer risk potential. Digital projection radiography, a vital imaging modality, accounts... Read more


view channel
Image: The researchers are using MRI-guided radiation therapy that pairs daily MRIs with radiation treatment (Photo courtesy of Sylvester)

AI Technique Automatically Traces Tumors in Large MRI Datasets to Guide Real-time Glioblastoma Treatment

Treating glioblastoma, a prevalent and aggressive brain cancer, involves the use of radiation therapy guided by CT imaging. While this method is effective in targeting radiation, it doesn't provide real-time... Read more


view channel
Image: The new ultrasound patch can measure how full the bladder is (Photo courtesy of MIT)

Ultrasound Patch Designed to Monitor Bladder and Kidney Health Could Enable Earlier Cancer Diagnosis

Bladder dysfunction and related health issues affect millions worldwide. Monitoring bladder volume is crucial for assessing kidney health. Traditionally, this requires a visit to a medical facility and... Read more

Nuclear Medicine

view channel
Image: A novel PET radiotracer facilitates early, noninvasive detection of IBD (Photo courtesy of Karmanos)

New PET Radiotracer Aids Early, Noninvasive Detection of Inflammatory Bowel Disease

Inflammatory bowel disease (IBD), which includes Crohn’s disease and ulcerative colitis, is an inflammatory condition of the gastrointestinal tract affecting roughly seven million individuals globally.... 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

Industry News

view channel
Image: Attendees can discover innovative products and technology in the RSNA 2023 Technical Exhibits (Photo courtesy of RSNA)

RSNA 2023 Technical Exhibits to Offer Innovations in AI, 3D Printing and More

The 109th Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA, Oak Brook, IL, USA) to be held in Chicago, Nov. 26 to 30 is all set to offer a vast array of medical... Read more
Copyright © 2000-2023 Globetech Media. All rights reserved.