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

Photon-Counting CT Beats Dual-Source CT at Detecting Heart Defects in Babies

By MedImaging International staff writers
Posted on 25 May 2023
Print article
Image: DSCT and PCCT images for comparison of quality (Photo courtesy of RWTH)
Image: DSCT and PCCT images for comparison of quality (Photo courtesy of RWTH)

In the neonatal stage, congenital heart defects emerge as the leading cause of sickness and death, impacting nearly one percent of all live births. Around a quarter of these defects are severe, necessitating surgical treatments within the first month post-birth. In order to plan for the operation and devise virtual and printed 3D heart models, extensive evaluation using ultrasound, MRI, and CT scans is usually required. Now, a study has found that a new advanced form of CT imaging called photon-counting computed tomography (PCCT) offers superior cardiovascular imaging quality at a comparable radiation dose to dual-source CT (DSCT) for infants with suspected cardiac defects.

PCCT is an emerging imaging technique that records the exact count and energy measurements of incoming X-ray photons. In comparison to DSCT, PCCT delivers higher image resolution and/or lower radiation doses, a feature that is especially useful in pediatric imaging. Although the efficacy of PCCT in enhancing cardiovascular CT imaging in adults has been established, there is a dearth of information about its application in neonates and young children. For their study, researchers at RWTH Aachen University Hospital (Aachen, Germany) assessed pre-existing clinical CT scans of 113 children who had undergone contrast-enhanced PCCT (30 infants), DSCT (83 infants), or both (one infant) for their heart and thoracic aorta from January 2019 through October 2022. The group under study was comprised of 55 girls and 58 boys, with a median age of 66 days.

The researchers found that the PCCT images were sharper, had less image noise, and demonstrated higher contrast than DSCT images. The mean overall visual quality of the images was higher for PCCT than DSCT, using a similar radiation dose. Over 97% of PCCT images met the diagnostic quality criteria, as opposed to 77% of DSCT images. It was also observed by the research team that almost one-fourth of the DSCT images were of restricted or non-diagnostic quality, and 40% were of moderate quality.

“In our study, none of the PCCT examinations exhibited a poor image quality, and only a few were of limited or moderate quality,” said Timm Dirrichs, M.D., senior physician and specialist in cardiothoracic radiology in the Department of Diagnostic and Interventional Radiology at RWTH Aachen University Hospital. “PCCT is a promising method that may improve diagnostic image quality and efficiency compared to DSCT imaging. This higher efficiency can be used to reduce the radiation dose at a given image quality level or to improve image quality at a given radiation level.”

Related Links:
RWTH Aachen University Hospital 

Gold Supplier
Ultrasound System
Gold Supplier
Electrode Solution and Skin Prep
Gold Supplier
CR Reader
Digital Radiography System
DuraDiagnost F30

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.