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




Cone Beam CT Imaging Could Help Detect Joint Osteoarthritis Earlier

By MedImaging International staff writers
Posted on 16 Aug 2016
Print article
Image: Imaging reconstruction of a joint using CBCT/CMOS (Photo courtesy of JHU).
Image: Imaging reconstruction of a joint using CBCT/CMOS (Photo courtesy of JHU).
Combining cone beam computed tomography (CBCT) with complementary metal-oxide semiconductor (CMOS) sensors could detect early stage osteoarthritis (OA).

Developed by researchers at Johns Hopkins University (JHU, Baltimore, MD, USA), the portable CBCT/CMOS system could be used in doctors' offices, helping to detect OA with a radiation dose lower than that of standard computed tomography (CT). And since the CMOS sensor provides very high spatial resolution, it allows detection of finer details than standard CT, greatly enhancing doctors’ ability to assess trabecular bone. According to the researchers, the imaging system also could help with early identification of osteoporosis.

The researchers used the CBCT/CMOS system to image the hand of a human cadaver, as well as pelvic bone biopsy samples from 25 living women. They determined that the system provided results that correlate with micro-CT with an amorphous silicon (aSi) flat-panel detector (FPD), which is the gold standard for assessing trabecular bone. The preliminary results were presented at the 58th annual meeting of the American Association of Physicists in Medicine (AAPM), held during July-August 2016 in Washington (DC, USA).

“The technology we are developing allows us to see very fine detail in the mesh-like microstructure of bone – known as trabecular bone – which currently can't be assessed in patients,” said senior author medical physicist Wojciech Zbijewski, PhD, of the JHU department of biomedical engineering. “There is growing evidence that early stages of osteoarthritis involve changes in trabecular bone, so if we can detect such change, a patient could potentially avoid painful knee replacement surgery by getting treatment before the cartilage was irreversibly damaged.”

Currently, joints are usually assessed by x-ray or magnetic resonance imaging (MRI), which show if the cartilage lining the joint has been damaged. In most cases, by the time a patient has pain, the damage to the joint is irreversible, and the only solution is to surgically replace that joint. Joint replacement is therefore a common procedure, with 719,000 knee replacements and 332,000 hip replacements performed every year in the United States alone, according to the Centers for Disease and Prevention (CDC; Atlanta, GA, USA).

Related Links:
Johns Hopkins University


Gold Member
Solid State Kv/Dose Multi-Sensor
AGMS-DM+
New
Brachytherapy Planning System
Oncentra Brachy
New
C-Arm with FPD
Digiscan V20 / V30
Dose Area Product Meter
VacuDAP

Print article

Channels

Radiography

view channel
:	Image: The AI model could be a valuable adjunct to human radiologists in breast cancer diagnoses and risk prediction (Photo courtesy of 123RF)

AI Model Predicts 5-Year Breast Cancer Risk from Mammograms

Approximately 13% of U.S. women, or one in every eight, are predicted to develop invasive breast cancer over their lifetime, with 1 in 39 women (3%) succumbing to the illness, according to the American... Read more

Nuclear Medicine

view channel
Image: The AI system uses scintigraphy imaging for early diagnosis of cardiac amyloidosis (Photo courtesy of 123RF)

AI System Automatically and Reliably Detects Cardiac Amyloidosis Using Scintigraphy Imaging

Cardiac amyloidosis, a condition characterized by the buildup of abnormal protein deposits (amyloids) in the heart muscle, severely affects heart function and can lead to heart failure or death without... 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: Samsung Medison CEO Mr. Yongkwan Kim and Bracco Imaging CEO Dr. Fulvio Renoldi Bracco endorsed a MoU agreement (Photo courtesy of Bracco Group)

Samsung and Bracco Enter Into New Diagnostic Ultrasound Technology Agreement

Samsung Medison (Seoul, South Korea) and Bracco Imaging (Milan, Italy) have entered into a Memorandum of Understanding (MoU) agreement to pioneer a new area for diagnostic ultrasound devices and contrast agents.... Read more
Copyright © 2000-2024 Globetech Media. All rights reserved.