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




SPECT Imaging Technology Shortens Cardiac Scan Time

By MedImaging International staff writers
Posted on 16 Jun 2022
Print article
Image: A cardiac SPECT imaging system performs scans 10 to 100 times faster than current SPECT systems (Photo courtesy of Pexels)
Image: A cardiac SPECT imaging system performs scans 10 to 100 times faster than current SPECT systems (Photo courtesy of Pexels)

Heart disease - which includes heart attack, heart failure and arrhythmias - is the leading cause of death among adults. Now, a cardiac SPECT imaging system uses self-collimation to perform scans 10 to 100 times faster than current SPECT systems, dramatically shortening scan time, generating better quality images, increasing patient throughput, and reducing radiation exposure to patients.

The new system has been built by scientists at Tsinghua University (Beijing, China) with the concept of self-collimation; active detectors in a multi-layer architecture carry out the dual functionality of detection and collimation. This concept improves the conventional SPECT paradigm, in which a mechanical collimator is the backbone but also the bottleneck of imaging performance. To break away from the constraints of mechanical collimator, the research team designed a self-collimating cardiac SPECT system. They used a multilayer, interspaced mosaic-patterned detector that carries out a dual function of photon detection and collimation. The signal-to-noise ratio of the system is further improved with a random pattern of apertures on the metal plate, which also functions as part of the collimation. The system had an average sensitivity of 0.68% in the field of view and was able to identify the defect in a cardiac phantom in as little as two seconds.

“SPECT is an important noninvasive imaging tool for the diagnosis and risk stratification of patients with coronary heart disease,” said Debin Zhang, a doctoral student at Tsinghua University. “However, conventional SPECT suffers from long scan time and poor image quality as a result of relying on a mechanical collimator. The new SPECT system is capable of performing fast-framed dynamic scans with high quality.”

“The technology proposed in this work may drive a paradigm shift in all single-photon-emission-based molecular imaging and nuclear medicine technologies,” added Tianyu Ma, PhD, associate professor of Engineering Physics at Tsinghua University. “The new detector design opens up a broad range of possibilities for development of new imaging systems with better image quality, higher speed, and better diagnostic accuracy in molecular imaging.”

Related Links:
Tsinghua University 

Gold Member
Solid State Kv/Dose Multi-Sensor
AGMS-DM+
New
Silver Member
Mobile X-Ray Barrier
Lead Acrylic Mobile X-Ray Barriers
New
DR Flat Panel Detector
1500L
New
Ultrasound System
Acclarix AX9

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.