News | March 08, 2011

Large Bore CT System Improves Treatment Planning Accuracy

March 8, 2011 – During treatment planning, standard-bore computed tomography (CT) systems often constrain patient positioning because the bore and scan field-of-view cannot accommodate a patient positioned off-center. For this reason, the Cancer Care Center at Great River Medical Center in West Burlington, Iowa, is using Toshiba’s Aquilion Large Bore CT system to minimize the constraints on its treatment plans.

The system helps Great River Medical Center treat breast, prostate and colon cancer patients, and enables physicians to treat patients with intensity-modulated radiotherapy (IMRT). The system’s large bore allows more positioning options for patients, enabling therapists to capture the studies needed to optimally treat all patients.

“The Aquilion Large Bore’s superior image quality and large field-of-view help improve treatment plans by accurately identifying the target treatment area, improving patient safety by ensuring healthy tissue is spared unnecessary radiation,” said William McGinnis, M.D., medical director, Great River Medical Center Cancer Care Center. “In addition, the design and features of the Aquilion Large Bore allow us to better accommodate bariatric patients, many of whom were previously sent to other facilities for radiation oncology treatment. The Aquilion’s wide bore opening enables us to comfortably and safely treat these patients while obtaining high-quality images, regardless of the patient’s size or position.”

A recent study demonstrated the importance of using a CT system with a large field-of-view for radiation therapy treatment planning. The study found that 28 percent of patients did not fit within a 50 cm standard field-of-view. To provide a workaround to this limitation, most vendors developed a feature called an “extrapolated field-of-view” that extends the viewable area, but at the cost of significant image distortion. Treatment planning errors can result from the use of extrapolation, and they could be eliminated for 98 percent of patients on a system with a 70 cm acquired field-of-view.

The Aquilion Large Bore has the industry’s largest bore opening, 90 cm, with a 70 cm acquired field-of-view, making it possible to image patients of nearly all sizes.

“The larger data collection area of the Aquilion Large Bore system prevents clinicians from having to compromise when planning for radiation therapy,” said Earl Nixon, radiation therapy physicist, Great River Medical Center. “With a significant portion of our patients needing to be positioned for breast and pelvic imaging, we are able to image them in the preferred treatment position, critical for accurate radiation therapy dose calculations.”

For more information: www.medical.toshiba.com

Related Content

Researchers Awarded 2018 Canon Medical Systems USA/RSNA Research Grants
News | Radiology Imaging | November 13, 2018
The Radiological Society of North America (RSNA) Research & Education (R&E) Foundation recently announced the...
Videos | ASTRO | November 08, 2018
ITN Editor Dave Fornell took a tour of some of the most innovative technologies on display on the expo floor at the 
The Fujifilm FCT Embrace CT System displayed for the first time at ASTRO 2018.
360 Photos | 360 View Photos | November 07, 2018
Fujifilm's first FDA-cleared compu...
MaxQ AI Receives FDA Clearance for Accipio Ix Intracranial Hemorrhage Platform
Technology | Artificial Intelligence | November 07, 2018
MaxQ AI announced that its Accipio Ix intracranial hemorrhage (ICH) detection software has received 510(k) clearance...
Charles Ananian, M.D.

Charles Ananian, M.D.

Sponsored Content | Case Study | Digital Radiography (DR) | November 07, 2018
Whether it’s a premature baby or a critically ill child, treating little patients is a huge responsibility.
This is the Siemens Magnetom Sola RT edition 1.5T MRI system optimized for radiation therapy displayed for the first time since gaining FDA clearance in 2018. It was displayed at the American Society for Radiotherapy and Oncology (ASTRO) 2018 annual meeting. Read more about this system at ASTRO 2018. #ASTRO18 #ASTRO2018
360 Photos | 360 View Photos | November 07, 2018
This is the Siemens Magnetom Sola RT edition 1.5T MRI system optimized for...
GE Healthcare Discovery RF Gen 2 system displayed at ASTRO 2018. It is a dedicated computed tomography (CT) scanner for radiation oncology
360 Photos | 360 View Photos | November 07, 2018
This is the GE Healthcare Discovery RF Gen 2 system displayed at the ...