Features | Partner Sites | Information | LinkXpress
Sign In
ElsMed
Schiller
Ampronix

Changing the Shape of CT Scanners in Response to Patient’s Expanding Waistlines

By Medimaging International staff writers
Posted on 30 Jul 2014
Image: Changing CT scanners shape in response to patient waistlines. The CT imaging systems of today have up to 300 kg table weight allowance, 2 x 120 kW power, and an 80-cm bore (Photo courtesy of Siemens Healthcare).
Image: Changing CT scanners shape in response to patient waistlines. The CT imaging systems of today have up to 300 kg table weight allowance, 2 x 120 kW power, and an 80-cm bore (Photo courtesy of Siemens Healthcare).
Image: Older CT imaging systems had a 160 kg table weight allowance, 50 kw power, and a 70-cm bore (Photo courtesy of Siemens Healthcare).
Image: Older CT imaging systems had a 160 kg table weight allowance, 50 kw power, and a 70-cm bore (Photo courtesy of Siemens Healthcare).
As computed tomography (CT) imaging systems continue to grow in size, weight capacity and ability to adapt for the growing waistline of patient population is essential.

A recent evaluation, performed by Siemens Healthcare (Erlangen, Germany), of the historic and current statistics of CT imaging systems, has revealed a substantial increase in the design and capacity of computed tomography (CT) scanners provided to the United Kingdom’s NHS [National Health Service] and private hospitals over the past 15 years to accommodate the rise in obesity. This is comparable to recent figures published by Public Health England citing that 64% of people in the United Kingdom are now overweight or obese.

When an individual labeled as “obese” is referred to hospital for a scan, key considerations for clinicians include if the system will hold the person’s weight, if they can fit in the bore, and if there is enough power to penetrate the patient. The internal assessment, looking at a range of CT scanners over the past 20 years, has revealed that the weight allowance of imaging tables has increased by 88%. Furthermore, X-ray generator power, which contributes to scanners providing a good quality image in spite the patient’s size, has risen by 380%, the bore size, where the patient lies, has increased by a total of 10 cm.

“The number of bariatric patients being referred for CT scans has more than doubled in the last 25 years and this is predicted to continue rising,” states Russell Lodge, CT business manager at Siemens Healthcare. “We have witnessed a growing need and demand for obesity provision from hospital imaging departments across the country to ensure patients of all sizes can gain access to the treatment they need. It is essential that manufacturers respond from a design and innovation perspective to ensure that systems hold more weight, include a bigger bore and penetrate larger body mass.”

Being able to hold a person’s weight without causing damage to the scanner or risking injury to the patient is an increasingly important consideration for clinicians. Table weight allowances have nearly doubled from 160 kg in earlier scanners on the market approximately 10 years ago up to the availability of 300 kg allowances in current systems.

The X-ray generator power rating of a CT scanner is a significant factor in ensuring good image quality; therefore if there is not enough power when it comes to larger patients, a diagnostic image may not be captured. Power has increased substantially from around 50 kW 10 years ago, with the most advanced CT scanners now up to 2 x 120 kW, making it suitable for rapid volume coverage with obese patients.

In earlier generation diagnostic systems, the bore, where the patient enters the imaging system, would typically be 70 cm. Recently, this has expanded up to 80 cm. This is good news in response to a rising waist size in United Kingdom adults, which sees an average of 40% of adults with a raised waistline in 2012 compared to an average of 24% in 1993.

The older CT imaging systems had a 160 kg table weight allowance, 50 kW power capability, and a 70-cm bore. The CT imaging systems of today have up to 300 kg table weight allowance, 2 x 120 kW power, and an 80-cm bore.

Related Links:

Siemens Healthcare



Channels

MRI

view channel

fMRI and Circuitry Mapping Shows Dyslexic Readers Have Disrupted Brain Network

Dyslexia, the most typically diagnosed learning disability in the United States, is a neurologic reading disability that occurs when the regions of the brain that process written language do not function normally. The use of noninvasive functional neuroimaging approaches has helped characterize how brain activity is disrupted... Read more

Ultrasound

view channel
Image: Leading German anesthetists Drs. Wolf Armbruster, Rüdiger Eichholz, and Thomas Notheisen have collaborated to develop the Armbruster Eichholz Notheisen (AEN) training concept for ultrasound-guided regional anesthesia (Photo courtesy of Management and Krankenhaus).

Point-of-Care Ultrasound Training Program Established for Regional Anesthesiologists

Regional anesthesia specialists have developed an innovative ultrasound training program. Leading German anesthetists Drs. Wolf Armbruster, Rüdiger Eichholz, and Thomas Notheisen have collaborated to... Read more

Nuclear medicine

view channel
Image: The ProBeam system treatment room (Photo courtesy of Varian Medical Systems).

Five Proton Therapy Treatment Rooms Plus System Upgrade Deployed at Scripps Proton Therapy Center

An upgrade of a proton system will improve workflow at a US proton therapy center, enabling the use of the fixed-beam treatment rooms as well as more diverse patient-positioning devices.... Read more

General/Advanced Imaging

view channel
Image: New laser technology designed to detect breast cancer based on photoacoustics (Photo courtesy of Universidad Carlos III de Madrid).

Photoacoustics Used to Detect Breast Cancer

Spanish scientists are using new laser technology to detect breast cancer based on photoacoustics. The new approach could become an alternative to mammography or ultrasound. The European science project... Read more

Imaging IT

view channel

Database Tool Centralizes Imaging Workflows into One Platform to Improve Patient Care, Cut Costs

A single database application has been developed to centralize imaging workflows into one easy-to-use platform. It is an intuitive approach that scales as the healthcare provider’s needs grow. With consolidated software and interfaces, users can considerable reduce manual data entry, errors, and down time.... Read more

Industry News

view channel

Global Partnership Provides Treatment Planning Support for Modulated Arc Radiotherapy

Varian Medical Systems (Palo Alto, CA, USA) Eclipse treatment planning software can now be used to plan modulated arc radiotherapy (mARC) treatments at sites using Siemens Healthcare (Erlangen, Germany) medical linear accelerators. Varian Medical Systems and Siemens Healthcare presented their range of solutions that... Read more
 
Copyright © 2000-2014 Globetech Media. All rights reserved.