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
GLOBETECH PUBLISHING LLC

Download Mobile App




Ultrasound Technique Non-Invasively Measures Brain Blood Flow in Pre-Term Babies at Bedside

By MedImaging International staff writers
Posted on 10 Oct 2022
Print article
Image: A graphic depicting the noninvasive ultrasound that measures blood flow to the brains of newborns (Photo courtesy of Michigan Medicine)
Image: A graphic depicting the noninvasive ultrasound that measures blood flow to the brains of newborns (Photo courtesy of Michigan Medicine)

When a fetus develops, the baby’s lungs are filled with fluid, and oxygen comes directly from the placenta. This oxygenated blood bypasses the lungs to reach the rest of the body through a vessel called the ductus arteriosus. After birth, babies use their lungs to breathe, and the ductus arteriosus typically closes within several days. But for nearly 65% of pre-term infants, the vessel fails to close. This condition, called patent ductus arteriosus, or PDA, shifts blood flow into an abnormal path which can strain the heart, congest the lungs and steal blood and oxygen from the newborn baby’s brain and other organs. Physicians must decide whether to attempt to close the PDA with medications or an implanted device, both of which have risks. Accurately measuring blood flow to the newborn’s organs could help with this important decision. However, there is no true blood flow measurement that practically works for clinical use. Now, researchers have discovered a novel, non-invasive way to measure blood flow to the brains of newborn children at the bedside – a method that has the potential to enhance diagnosis and treatment across medicine.

A team of researchers at Michigan Medicine (Ann Arbor, MI, USA) has developed a real-time ultrasound color flow technique that relies on 3D sampling to measure blood flow. They tested the method on 10 healthy, full-term babies, obtaining total brain blood flow measurements that closely match those using more invasive or technically demanding techniques. There are many surrogate methods used in lieu of true blood flow, such as blood flow velocity. But true blood flow requires knowing the velocity of the blood in relation to the area it covers. The new technique measures true blood flow by calculating blood flow flux over a surface across ultrasound beams. The color image is captured in 3D.

With a non-invasive, true measure of blood flow, researchers say the technique could be applied to address blood flow to organs including the brain, the liver and kidneys in many disease states including congestive heart failure, sepsis and shock. The method also has the potential to be applied almost anywhere an ultrasound can image, being used for anything from assessing need for organ transplants to identifying issues during surgical procedures.

“There are several other methods of measuring blood flow, but they are cumbersome and often require intravenous contrast agents, with babies being sedated or restrained in a scanner,” said Jonathan Rubin, M.D., Ph.D., professor emeritus of radiology at University of Michigan Medical School. “But pre-term babies are in incubators; they are fragile, and these techniques can be dangerous. This ultrasound technique could be used routinely in neonatal intensive care units, which could significantly impact outcomes for pre-term babies with this condition.”

“In the Neonatal Intensive Care Unit, we must make assumptions every day based on indirect measures to determine how our treatments affect blood flow to the organs of critically ill newborns,” said Gary Weiner, M.D., clinical associate professor of pediatrics at U-M Medical School and medical director of the Brandon Neonatal Intensive Care Unit at U-M Health C.S. Mott Children’s Hospital. “Having a safe, rapid, accurate bedside tool that allows us to measure true blood flow could be a game changer.”

Related Links:
University of Michigan 

Gold Supplier
128 Slice CT Scanner
Supria 128
New
Gold Supplier
IMRT Thorax Phantom
CIRS Model 002LFC
New
CT System
Aquilion Lightning 80
New
Ultrasound Diagnostic System
CMS600P2PLUS

Print article
Sun Nuclear -    Mirion

Channels

Radiography

view channel
Image: Radiologists outperformed AI in identifying lung diseases on chest X-ray (Photo courtesy of RSNA)

Radiologists Beat AI in Detecting Common Lung Diseases on Chest X-Rays

Chest X-rays are frequently used for diagnosis, but it takes a lot of training and expertise to read these images correctly. Although the Food and Drug Administration (FDA) has approved some artificial... Read more

Nuclear Medicine

view channel
Image: Imaging entire body instead of only the primary cancer site can provide a total estimate of HER2 expression (Photo courtesy of 123RF)

Whole-Body PET/CT Predicts Response to HER2-Targeted Therapy in Metastatic Breast Cancer Patients

Around 20% of women diagnosed with breast cancer show overexpression of human epidermal growth factor receptor 2 (HER2), making it a key therapy target for new as well as recurring cases.... Read more

General/Advanced Imaging

view channel
Image: Annalise Enterprise CTB acts like a ‘second pair of eyes’ for radiologists (Photo courtesy of Annalise.ai)

Deep Learning System Boosts Radiologist Accuracy and Speed for Head CTs

Non-contrast computed tomography of the brain (NCCTB) is a commonly employed method for identifying intracranial pathology. Despite its frequent use, the complex scan outcomes are prone to being misunderstood.... 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: The partnership combines best-in-class AI-powered technologies for musculoskeletal imaging workflows (Photo courtesy of ImageBiopsy Lab)

AI-Powered Technologies to Aid Interpretation of X-Ray and MRI Images for Improved Disease Diagnosis

Musculoskeletal (MSK) conditions impact more people worldwide than issues related to the circulatory or respiratory systems. Even so, diagnostic procedures for these conditions often still lean on outdated... Read more
Copyright © 2000-2023 Globetech Media. All rights reserved.