Features | Partner Sites | Information | LinkXpress
Sign In
GLOBETECH PUBLISHING LLC
Schiller
TeraRecon

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
Image: MR Solutions’ Cryogen-free 4.7-T MRI Scanner (Photo courtesy of MR Solutions).

New Preclinical Cryogen-Free 4.7-T MRI System Revealed

A new Magnetic Resonance Imaging (MRI) scanner uses an innovative dry magnet design with low running costs, and a standard low-temperature refrigerator, instead of liquid helium, to cool the magnet to... Read more

Nuclear medicine

view channel

New Standards for Administration of Intravascular Contrast Agents for Adults

Revised guidelines to the administration of iodine- and gadolinium-based contrast agents were published. The update was deemed necessary because of an increase in the use of iodinated and Gadolinium-Based Contrast Agents (GBCA), and new research into potential risks of their use, weighed against potential benefits.... Read more

General/Advanced Imaging

view channel
Image: Measuring the Magnetic Activity in the Brain of a Child, Using a MEG machine. (Photo courtesy of Children\'s Hospital of Philadelphia).

Study Suggests Language Delay Linked to Chromosome Deletion in Children with Neurological Disorders

A study found that children with neuro-developmental problems born with DNA duplications or deletions on part of chromosome 16, show measurable delays in their ability to process sound and language.... Read more

Imaging IT

view channel

New High-Speed Laser Tabletop Medical Imaging Printer Developed

A laser printer is intended for high-resolution printing of medical images, and uses photothermographic (dry laser) print heads that require minimal maintenance. The printer can be used for printing from Computed Radiography (CR), Digital Radiography (DR), Computed Tomography (CT), Magnetic Resonance (MR), and Picture... Read more

Industry News

view channel
Image: Toshiba's new medical imaging systems plant in Penang, Malaysia (Photo courtesy of Toshiba).

Toshiba Medical Builds Manufacturing Facility in Southeast Asia

A manufacturing facility built in Bayan Lepas (Penang, Malaysia) by Toshiba Medical Systems Corporation (Otawara, Japan) will produce diagnostic imaging systems. The new 8,582-m2 facility cost JPY 1.... Read more
 
Copyright © 2000-2015 Globetech Media. All rights reserved.